Consulta: subjectFacets:"Milk quality"
Registros recuperados: 34
Data/hora: 01/06/2024 06:06:10

Convenient genotyping of nine bovine K-casein variants
Provedor de dados: 69
Autores: Pacheco Contreras,Víctor I; Lourenco Jaramillo,Diana L; Parra Bracamonte,Gaspar M; Martínez González,Juan C; Sifuentes Rincón,Ana M.
K-casein gene polymorphisms are of major importance in the dairy industry due to their association with different quality and productive traits (i.e., milk protein). Several methods for genotyping this gene have been proposed; however, none are focused on the simultaneous discrimination of nine K-casein variants. A strategy based on PCR-RFLP was designed to characterize nine K-casein variants (A, B, C, E, F², G, H, I and J) and used to genotype three cattle populations: Gyrholando (3/8 Gyr x 5/8 Holstein), Charolais and Carora. The B variant was the most frequent in the Charolais and Carora breeds, with allelic frequencies of 0.60 and 0.59, respectively. In the Gyrholando breed, four variants were found, with the A variant being the most frequent and E and...
Tipo: Journal article
Palavras-chave: Milk proteins; Milk quality; Protein genes.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000400012

Caracterização epidemiológica dos indicadores de qualidade higiênico-sanitária do leite de rebanhos de três microrregiões do estado do Acre.
Provedor de dados: 14
Autores: DIAS, J. A.; CARVALHO, B. P.; MESQUITA, A. Q. de; LAMBERTUCCI, D. M.; CAVALCANTE, F. A.
Este estudo teve o objetivo de caracterizar indústrias lácteas e os indicadores de qualidade do leite de propriedades vinculadas às indústrias localizadas nas regiões do Alto Acre, Baixo Acre e Tarauacá-Envira, estado do Acre. Foram avaliadas amostras de leite de 92 rebanhos leiteiros para determinação da Contagem Total de Bactérias (CTB), convertidas em Contagem Padrão em Placas (CPP), e Contagem de Células Somáticas (CCS) realizadas pelo método de citometria de fluxo em equipamento automatizado. O questionário epidemiológico foi aplicado a 56 produtores a fim de obter informações do sistema de produção e manejo. Para a análise de dados foi utilizado o programa Epiinfo 7.2.2.6. As indústrias lácteas avaliadas captavam entre 750 e 11.500 litros/dia, e a...
Tipo: Folhetos
Palavras-chave: Microbiota; Alto Acre; Baixo Acre; Tarauacá-Envira; Epiinfo; Indústria láctea; Acre; Amazônia Ocidental; Western Amazon; Produção Leiteira; Leite; Qualidade; Milk production; Milk quality; Dairy industry.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136166

Caracterização epidemiológica de áreas de baixa qualidade microbiológica do leite cru.
Provedor de dados: 14
Autores: DIAS, J. A.; OLIVEIRA, A. M. de; GREGO, C. R.; OLIVEIRA, L. F. de; FARIA, G. V.; SILVA, F. de A. C.
Este trabalho teve o objetivo de caracterizar o perfil dos produtores e manejo das propriedades localizadas em áreas de baixa qualidade microbiológica do leite cru dentro da área de abrangência de uma indústria láctea, identificadas por meio da análise espacial dos indicadores de CTB no estudo realizado por Dias et al. (2017).
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Agroindústria; Ariquemes (RO); Rondônia; Amazônia Ocidental; Western Amazon; Indústria Agrícola; Produção Leiteira; Cadeia Produtiva; Controle de Qualidade; Análise Bacteriológica; Tanque; Resfriamento; Cooperativa de Produtores; Agribusiness; Milk production; Milk quality; Supply chain; Microbiological quality; Tankers; Cold treatment.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1114838

Impacto da iniciativa de pagamento por qualidade do leite sobre indicadores higiênico-sanitários de tanques de resfriamento de leite.
Provedor de dados: 14
Autores: DIAS, J. A.; SOUZA, M. G. de; GREGO, C. R.; MENDES, A. M.
Foi avaliada a iniciativa de pagamento por qualidade do leite em laticínio de médio porte do Estado d e Rondônia e seu impacto sobre os indicadores higiênico-sanitários do leite. Para isso, foram avaliados os resultados de Contagem Bacteriana Total (CTB) e Contagem de Células Somáticas (CCS) de tanques de resfriamento vinculados ao laticínio. Foram selecionados os tanques de resfriamento com três análises consecutivas de CCS e CTB no período chuvoso de 2015 e 2016, totalizando 51 tanques. O sistema de pagamento por qualidade do leite teve início em julho de 2015 e os critérios de bonificação são baseados nos teores de gordura, Contagem de Células Somáticas (CCS) e Contagem Total Bacteriana (CTB) de amostras de leite de tanques de resfriamento. O sistema...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Qualidade do leite; Higiene alimentar; Produção Leiteira; Sanidade Animal; Milk quality.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1093159

Qualidade do leite na Amazônia.
Provedor de dados: 14
Autores: DIAS, J. A.; SOUZA, G. N. de; GREGO, C. R.
Este capítulo objetiva apresentar as normativas vigentes, os principais avanços e desafios para melhoria da qualidade do leite e a situação epidemiológica dos indicadores higiênico-sanitários do leite da região, a fim de subsidiar a definição de estratégias para melhoria da qualidade e seguridade do leite produzido na Amazônia.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Produção Leiteira; Cadeia Produtiva; Controle de Qualidade; Legislação; Milk production; Supply chain; Milk quality; Food law; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126173

Microrganismos deteriorantes do leite armazenado em tanques de resfriamento coletivo em Rondônia.
Provedor de dados: 14
Autores: DIAS, J. A.; OLIVEIRA, A. M. de; MACEDO, S. C. C.; FARIA, G. V.; CONSTANTINO, N. A. S.; SILVA, F. de A. C.
Considerando a predominância do uso de tanques de resfriamento coletivos no armazenamento do leite cru em Rondônia e a grande diversidade de microrganismos deletérios ao leite, o objetivo do trabalho foi avaliar a microbiota deteriorante do leite armazenado em 23 tanques coletivos da microrregião de Ji-Paraná e Cacoal. Para a contagem dos microrganismos utilizou-se semeadura em duplicata de 1 mL em placas de Petrifilm® AC aeróbios mesófilos e Petrifilm® EC coliformes totais de acordo com o fabricante. Para a contagem de psicrotróficos e termodúricos psicotróficos, as amostras foram semeadas em ágar padrão leite a 10%. Para a pesquisa de microrganismos termodúricos mesófilos e psicrotróficos, as amostras foram submetidas ao tratamento térmico (62,8 ± 0,5...
Tipo: Folhetos
Palavras-chave: Microbiota; Cooling tank; Leite; Qualidade; Armazenamento; Tanque; Resfriamento; Milk quality; Cold storage; Microorganisms.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136312

Ordenha e boas práticas de produção.
Provedor de dados: 14
Autores: DIAS, J. A.; BELOTI, V.; OLIVEIRA, A. M. de.
Considerando a importância da adoção de práticas adequadas para minimizar a contaminação do leite cru e garantir a qualidade da matéria-prima e seus derivados, este capítulo irá abordar os principais aspectos da ordenha e das boas práticas de produção.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Good production practices; Gado Leiteiro; Produção Leiteira; Qualidade; Pratica Cultural; Ordenha; Transferência de Tecnologia; Dairy cattle; Milk production; Milk quality; Milking; Technology transfer; Amazonia.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126174

Distribuição espacial e fatores de risco associados à ocorrência de resíduos de antimicrobianos em rebanhos leiteiros da microrregião de Ji-Paraná, Estado de Rondônia.
Provedor de dados: 14
Autores: DIAS, J. A.; ANTES, F. G.; GREGO, C. R.; MENEZES, C. A. de.
Considerando o impacto negativo da presença de resíduos de antibióticos para a cadeia produtiva do leite e a escassez de informações dos fatores associados à sua ocorrência no Estado de Rondônia, este trabalho teve o objetivo de determinar a prevalência e os fatores de risco associados à ocorrência de resíduos de antimicrobianos em amostras de leite cru da principal bacia leiteira do estado.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ji-Paraná (RO); Rondônia; Amazônia Ocidental; Western Amazon; Gado Leiteiro; Doença Animal; Mamite; Produção Leiteira; Controle de Qualidade; Controle Microbiano; Antibiótico; Dairy cattle; Animal diseases; Milk production; Milk quality; Bovine mastitis; Anti-infective agents; Veterinary drugs.
Ano: 2016
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123404

Produção de biofilmes por Staphylococcus spp. em vacas com mastite tratadas com homeopatia.
Provedor de dados: 14
Autores: ZAFALON, L. F.; CUNHA, M. L. R. S.; ALVES, T. C.; FERREIRA, E. M.
No Brasil, a homeopatia é a principal forma de controle da mastite em rebanhos orgânicos. Entretanto, desconhece-se a capacidade desse tipo de tratamento de controlar bactérias patogênicas relevantes à saúde animal e humana, como aquelas do gênero Staphylococcus. Esses micro-organismos apresentam fatores de patogenicidade, como a produção de biofilmes e questiona-se a possibilidade de essas bactérias permanecerem na glândula mamária de vacas tratadas com homeopatia, mesmo após o uso destas terapias alternativas. Assim, buscou-se investigar Staphylococcus spp. em leite de vacas com tratamento homeopático contra a mastite e a formação in vitro de biofilmes por esses patógenos. As vacas lactantes foram divididas em dois grupos antes do início do experimento,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Mammary gland; Qualidade do leite; Sanidade Animal; Glândula Mamaria; Milk quality; Animal health.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1110081

Casein fractions of ultra high temperature milk with different somatic cell counts
Provedor de dados: 86
Autores: Fernandes,Andrezza Maria; Bovo,Fernanda; Moretti,Thais Santos; Rosim,Roice Eliana; Lima,César Gonçalves de; Oliveira,Carlos Augusto Fernandes de.
The objective of this work was to evaluate the effect of somatic cell counts (SCC) in casein fractions of ultra high temperature (UHT) milk. Raw milks were categorized in SCC groups of low (200,000-320,000 cells mL-1), intermediate (380,000-560,000 cells mL-1) and high cells (600,000-800,000 cells mL-1). Five replicates of UHT milks within each SCC category were analyzed for casein fractions after 8, 30, 60, 90 and 120 days of storage through high performance liquid chromatography. SCC showed effect only on beta-casein reduction. SCC in raw milk increases the proteolysis of UHT milk, as a consequence of beta-casein degradation.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SCC; UHT milk; Proteolysis; Milk quality.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000100019

Chemical and fatty acid composition of milk from crossbred cows subjected to feed restriction
Provedor de dados: 86
Autores: Silva,Deiyse Alves; Rocha Júnior,Vicente Ribeiro; Ruas,José Reinaldo Mendes; Santana,Pedro Felipe; Borges,Luana Alcântara; Caldeira,Luciana Albuquerque; Reis,Sidnei Tavares dos; Menezes,Jordana Carvalho de; Lanna,Dante Pazzanese Duarte.
Abstract: The objective of this work was to evaluate the chemical composition and fatty acid profile of milk from F1 Holstein/Zebu cows in different lactation periods, when receiving different levels of dietary supply in percentage of body weight. Sixty cows were evaluated, with five levels of dietary supply and three lactation periods. The levels of dietary supply had no effect on the production of milk corrected to 3.5% fat (12.25 kg per day). There was also no effect of dietary supply levels, in the different lactation periods, on contents of fat (3.34%), protein (3.41%), lactose (4.60%), total solids (12.0%), defatted dry extract (8.80%), and urinary nitrogen (14.5 mg dL-1), nor on somatic cell count (89.98 mL-1). As the dietary supply level was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Desirable fatty acids; F1 Holstein/Zebu; Lactation period; Milk quality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000104304

Quality control of Dutch custard balanced against recall costs
Provedor de dados: 31
Autores: Velthuis,   Annet G.J.; Reij,   M.W.; van Wagenberg,   Coen P.A.
The relation between the moment at which a recall of Dutch custard is initiated and the direct costs of this recall was investigated. A simulation model of the custard supply chain was developed to compare scenarios with and without a quarantine of 48 h at the storage of the production plant. The model consists of three parts; first the distribution of a 24,000 L batch of custard over the supply chain over time is simulated, second the time to detect spoilage bacteria with a recontamination test procedure is simulated, third the direct recall costs of custard over the different parts of the supply chain are calculated. Direct recall costs increase from about €25,000 per batch to €36,171 from 57 to 135 h in the situation without quarantine and from €25,000...
Tipo: Conference Paper or Presentation
Palavras-chave: Quality control; Milk quality; Custard; Recall; Failure costs; Recall costs; Agricultural and Food Policy.
Ano: 2009
URL: http://purl.umn.edu/58133

Importance of standardizing raw milk quality for the enhancement of Croatian market competitiveness
Provedor de dados: 31
Autores: Tolusic,   Zoltan; Mijic,   P.; Tolusic,   M.
In the European Union member states (EU), it is necessary to evaluate hygienic condition of milk in order to determine milk price. Similar requirement was set by the Republic of Croatia in 2000. The Rulebook defines minimal quality criteria that fresh raw milk must have in order to be purchased. Upon completion of analysis, milk is classified into quality classes, each having a defined price. Increased value of somatic cell count (SCC) (higher than 400.000/ml) and MO (higher than 100.000/ml) directly decreases the raw milk price, while higher content of fat and protein causes its increase. Since the system of market milk price formation was established, producers have been stimulated to produce milk of higher quality: in a total of milk being purchased,...
Tipo: Conference Paper or Presentation
Palavras-chave: Milk quality; Competitiveness; Market; Croatia; Food Consumption/Nutrition/Food Safety; Livestock Production/Industries; Marketing.
Ano: 2006
URL: http://purl.umn.edu/10060

Food Quality and Food Safety in Hungarian Dairy Farms
Provedor de dados: 31
Autores: Vagany,   Judit; Dunay,   Anna.
In Hungary the introduction of quality assurance and food safety systems have achieved considerable results in the middle of the food-supply chain (i.e. in companies of food industry and trade sector), but in the ends of the chain (in agriculture and catering sector) there are still several problems.  This article and our presentation wish to show a general overview on the Hungarian milk sector, to describe the present situation of the Hungarian dairy farms and try to explore and examine the main difficulties of the building-up process, installation and operation of HACCP System in the Hungarian fresh milk producing sector and, furthermore its opportunities and threats, too.  We also give a short description of the Hungarian dairy sector, the main...
Tipo: Conference Paper or Presentation
Palavras-chave: Food safety; Milk production; Milk quality; HACCP System; Food Consumption/Nutrition/Food Safety.
Ano: 2004
URL: http://purl.umn.edu/25001

Economic viability of feeding dairy cows on diets containing different levels of soybean oil
Provedor de dados: 96
Autores: Lopes,Marcos Aurélio; Lage,Luciana Andrade; Lopes,Fernando César Ferraz; Ribeiro,Carlos Gustavo Santos; Gama,Marco Antônio Sundfeld da; Rodriguez,Norberto Mario.
The objective of this study was to evaluate the economic viability of feeding dairy cows with diets containing different levels of soybean oil. Cows were fed diets based on tropical forage (Pennisetum purpureum Schum) supplemented with different levels of soybean oil (0.0, 1.5, 3.0, and 4.5% of diet DM). The calculations were made considering the prices of the dietary ingredients and the daily consumption of each dietary treatment. The milk quality-based payment was estimated on the bonus paid for milk fat and protein contents according to two systems used by companies of the dairy sector. The economic benefit was calculated as the difference between the income obtained from milk sale and the cost associated with animal feeding. The MOP scenario analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milk quality; Nutrition; Production cost.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900017

Technical assistance and seasonality in the diet and production of dairy herds in household agriculture of Western Paraná
Provedor de dados: 96
Autores: Tinini,Rodrigo Cesar dos Reis; Zambom,Maximiliane Alavarse; Pozza,Magali Soares dos Santos; Fernandes,Tatiane; Castagnara,Deise Dalazen; Radis,Ana Cláudia; Santos,Geraldo Tadeu dos; Defante,Leslié.
The objective of the present study was to characterize the food sources, as well as the composition and quality of milk obtained from household farms of western Paraná State (Brazil) with and without technical assistance during the different seasons. For such, 24 properties were selected, 12 of which only received assistance and technical support. Four milk samples were taken (summer, autumn, winter and spring) to assess the physicochemical composition, somatic cell count and total bacterial count and feed supplied to the animals to assess the chemical composition (crude protein, ash, dry matter and neutral detergent fiber). The data were analyzed in a completely randomized design with a 2 × 4 factorial arrangement; the first factor was the presence and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy farming; Food quality; Milk quality.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000200067

Feeding strategies to design the fatty acid profile of sheep milk and cheese
Provedor de dados: 96
Autores: Nudda,Anna; Battacone,Gianni; Boaventura Neto,Oscar; Cannas,Antonello; Francesconi,Ana Helena Dias; Atzori,Alberto Stanislao; Pulina,Giuseppe.
The majority of sheep milk produced in the world is transformed into cheese. Feeding is a major factor affecting the quality of sheep milk and, therefore, of sheep cheese. Because fat is the main compound of cheese, this review gives an update on the effects of feeding and nutrition on milk fat content and deeply discusses feeding strategies aimed at increasing the levels of healthy fatty acids (FA), such as conjugated linoleic acid and omega-3 FA, in milk and cheese in the human diet. In addition, the use of alternative feed resources such as by-products, aromatic plants, and phenolic compounds in the sheep diet and their effects on milk and cheese FA composition are also discussed. Among feeding strategies, grazing and the use of supplements rich in oils...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: By-products; Cheese; CLA; Dairy sheep; Milk quality; Nutrition.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800445

Performance of dairy goats fed diets with dry yeast from sugar cane as protein source
Provedor de dados: 96
Autores: Lima,Luciano Soares de; Alcalde,Claudete Regina; Freitas,Hanna Sakamoto; Molina,Bruna Susan de Labio; Macedo,Francisco de Assis Fonseca de; Horst,José Augusto.
The effects of inactive dry yeast (Saccharomyces cerevisiae) from sugar cane were studied in 18 primiparus Saanen dairy goats (51.07±1.43) on dry matter intake and digestibility, milk production and quality. Animals were distributed in a completely randomized design during 90 days (from day 60 of milking). Diets were composed of soybean meal; soybean meal + dry yeast; or dry yeast, as protein sources, and ground corn, mineral supplement and corn silage (40%). Animals fed the dry yeast diet showed lower intake of dry matter (DM), organic matter (OM), crude protein, ether extract and neutral detergent fiber. Diets did not influence milk yield; however the milk production efficiency (kg of milk produced/kg of crude protein ingested) was better in goats fed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestibility; Goats; Milk quality; Saccharomyces cerevisiae.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100033

Conjugated linoleic acid of dairy foods is affected by cows’ feeding system and processing of milk
Provedor de dados: 63
Autores: Ruiz,Juan Pablo Avilez; Alonzo,Marcelo Wladimir; Pertíñez,Manuel Delgado.
ABSTRACT The distribution of conjugated linoleic acid (CLA) in dairy products commercially available in Chile is poorly understood. This study aimed to assess the content of CLA in dairy cow products from Chile and the effect of processing fresh milk into dairy products. Samples of raw milk were categorized into two groups based on the animal feeding system utilized by the dairy farm: 1) grazing based systems (Los Lagos region); and 2) housing systems using total mixed ration (TMR) diets (Los Angeles region). Simultaneously, commercial samples of condensed milk, powdered milk, butter and Gouda cheese were analyzed. Furthermore, samples of raw milk and processed products (powdered and sweetened condensed milk) were also analyzed. Dairy farms based on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CLA; Functional foods; Grazing; Milk quality.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000200103

Gir and Guzerat cow milk production and composition according to lactation stage, somatic cell count, physiological state and body condition
Provedor de dados: 2
Autores: Araújo, Thalita Polyana Monteiro; Rangel, Adriano Henrique do Nascimento; Lima, Guilherme Ferreira da Costa; Peixoto, Maria Gabriela Campolina Diniz; Urbano, Stela Antas; Bezerra, Joadilza da Silva.
 This work was realized to evaluate lactation stage, physiological state, somatic cell count (SCC) and body condition score (BCS) on production and composition of cow's milk from Gir and Guzerat breeds were studied. Ninety-eight cows were analyzed and classified according to their physiological state, lactation stage, SCC and BCS. Milk production was weighed monthly to obtain production data. Composed samples were collected in vials containing preservatives and sent to the laboratory for analysis. Data were used for statistic descriptive analysis and analysis of variance. Higher milk production in the first 60 days of lactation was observed. Fat, protein and total solids concentration increased according to the increase of days in milk; while lactose...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 5.04.05.02-0 gestation; Milk quality; Body reserve; Zebu.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39352

Influence seasons of the year and somatic cell counts on physical-chemical and sensory parameters of milk and coalho cheese
Provedor de dados: 2
Autores: Lima, Edine Roberta de; Oliveira, Juliana Paula Felipe de; Bezerra, Maria de Fátima; Borba, Luis Henrique Fernandes; Bezerra, Joadilza da Silva; Rangel, Adriano Henrique do Nascimento.
 The objective of this study was to evaluate the influence seasons of the year and somatic cell counts (SCC) on physical-chemical and sensory parameters of cow’s milk from individual and collective refrigeration tanks with different milking systems. In addition to analyzing the sensory acceptance of pasteurized milk and coalho cheese developed with high (&gt; 800,000 cells mL-1) and low SCC levels (&lt;200,000 cells mL-1). Seasonality did not affect fat content, casein, lactose, total solids, defatted dry extract and SCC, but lower protein levels than May and June were observed from July to September. Based on the SCC results, milk from refrigeration tanks was classified as low SCC and high SCC. The samples were used to obtain pasteurized milk and coalho...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Qualidade do leite; Análise sensorial dairy products; Mastitis; Milk composition; Milk quality; Refrigeration tank; Shelf life.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44666

Multivariate analysis relating milk production, milk composition, and seasons of the year
Provedor de dados: 42
Autores: HAYGERT-VELHO,IONE M.P.; CONCEIÇÃO,GABRIEL M. DA; COSMAM,LUIZ C.; ALESSIO,DILETA R.M.; BUSANELLO,MARCOS; SIPPERT,MICHELI R.; DAMIANI,CÁSSIA; ALMEIDA,ANA PAULA A.; VELHO,JOÃO PEDRO.
Abstract Our objective was to quantify the relationship between seasons of the year, milk production, and milk composition of a dairy farm based on data for 48 consecutive months, using multivariate statistical analyses. The dataset contained information on productive indexes and milk composition from the bulk tank milk, which was measured from milk samples, collected monthly and used to determine the total dry extract and defatted dry extract, lactose, fat, protein, somatic cell count, and total bacterial count. Seasons of the year and milk production/hectare were also considered. Factor, cluster, and discriminant analysis were used to study the relationships between the above-mentioned variables. A positive relationship was noted between season and total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farm management; Milk quality; Productivity; Somatic cell count; Statistics.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703839

Identification of subclinical mastitis caused by Mycoplasma spp. from screenings of bulk tanks
Provedor de dados: 45
Autores: Joaquim,S.F.; Guimarães,F.F.; Salina,A.; Junqueira,N.B.; Gomes,E.N.; Langoni,H.
ABSTRACT Mastitis caused by Mycoplasma spp., regardless of species, are considered highly contagious pathogens and, usually was not responsive to antimicrobial therapy. Five dairy herds, comprising 489 animals and 1,956 mammary glands, were used in this study. Milk samples were obtained from bulk tanks and subjected to polymerase chain reaction (PCR) for the identification of Mollicutes, Mycoplasma spp., and Mycoplasma bovis. Moreover, individual samples from cases of clinical and subclinical mastitis in quarters of the dairy herds’ animals that yielded a positive PCR upon bulk tank analysis were subjected to molecular analysis. Only one bulk tank was positive for class Mollicutes by PCR. All positive samples classified as mastitis teats had their DNA...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milk quality; Polymerase chain reaction; Dairy herds.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601793

Milk quality according to the daily range in farm production in the Mesoregion Central Mineira and Oeste of Minas Gerais regions, Brazil
Provedor de dados: 45
Autores: Borges,L.R.; Fonseca,L.M.; Martins,R.T.; Oliveira,M.C.P.P.
The objective of this work was to characterize milk production from the Central Mineira and Oeste Mesoregions regions in Minas Gerais State, Brazil, according to quality parameters such as somatic cell count, total bacteria count, and composition for specific production ranges. Average results for milk fat, protein, total and nonfat solids were compliant with Brazilian legal requirements (IN-62/2011) in all the production ranges selected. Average somatic cell counts (SCC) complied with the legal requirements of 600,000 cells/mL, except for the range with a daily production above 1,000 liters. However, average maximum values of 400,000 cells/mL are recommended for good milk quality. Total bacterial count was the most critical quality factor, with the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milk quality; Somatic cell count; Total bacterial count; Central Mineira mesoregion.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400041

Frequency of microorganisms isolated at different stages of lactation and milk production loss associated with somatic cell count and to mastitis-causing pathogens
Provedor de dados: 45
Autores: Costa,H.N.; Lage,C.F.A.; Malacco,V.M.R.; Belli,A.L.; Carvalho,A.U.; Facury,E.J.; Molina,L.R.
ABSTRACT The aim of this study was to evaluate the frequency of isolation of agents causing subclinical mastitis in a herd and to estimate production losses associated with SCC&gt; 200,000cells/mL. Three 7-day interval microbiological cultures were performed in all lactating animals from the same farm that was evaluated from June to July. To evaluate the negative and positive isolation frequencies between the lactation phases, a Chi-square test was performed. Simple linear regressions were performed to evaluate the lactation curve of animals grouped by pathogens isolated from negative cows in the microbiological culture and with SCC &lt;200,000cells/mL. To estimate the production losses between the groups, regression coefficients were used. Results found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Subclinical mastitis; Environmental; Contagious; Milk quality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200393

Profile of milk fatty acids from moxotó goats fed with different levels of manicoba (Manihot Glaziovii Muel Arg.) silage
Provedor de dados: 52
Autores: Mesquita,Ítala Viviane Ubaldo; Costa,Roberto Germano; Queiroga,Rita de Cássia Ramos do Egypto; Medeiros,Ariosvaldo Nunes de; Schuler,Alexandre Ricardo Pereira.
The objective of this work was to evaluate the effects of the manicoba silage use (Manihot glaziovii Muel Arg.) in different roughage:concentrate ratios (30:70; 40:60; 50:50 and 60:40 %) on the fatty acids profile of the milk from Moxotó goats. Eight multiparous goats with approximately 60 post-birth days and weigh 44 kg on average were used in a Double Latin Square with four treatments, four periods and four animals. Each period lasted 15 days with 10 days of adaptation to experimental diets and 5 days of milk collection. The results of the fatty acids analyses were submitted to the analysis of variance (ANOVA) and regression. An increasing linear effect for the miristic acid (C14:0) and decreasing for the linoleic acid (C18:3) was observed in function of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nourishment; Lipids; Milk quality; Native breed.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600011

Replacement of corn silage with cassava foliage silage in the diet of lactating dairy cows: milk composition and economic evaluation
Provedor de dados: 52
Autores: Santos,Geraldo Tadeu dos; Modesto,Elisa Cristina; Souza,Nilson Evelázio de; Ítavo,Luís Carlos Vinhas; Jobim,Clóves Cabreira; Kazama,Daniele Cristina da Silva; Valloto,Altair Antônio; Massuda,Ely Mitie.
This study aimed to evaluate the effect of corn silage (CS) replacement by cassava's foliage silage (CFS) on the production and quality of milk. Twelve lactating dairy cows were used in a randomized block experimental design with four treatments and three repetitions per block. CS was replaced by CFS at the levels of 0, 20, 40, and 60%. The replacement of CS by different levels of CFS had very low effect on the variables studied. Milk density decreased when the replacement level was increased. Fatty acids 4:0 and 6:0 presented a quadratic behavior, while fat acids 8:0, 10:0, and 15:0 presented a linear behavior as their concentrations fell when CFS diet content was increased. The CS replacement by 20% until 60% CFS resulted a significant decrease in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal production; Economic evaluation; Fatty acid profile; Milk production; Milk quality.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700033

Physical-chemical characteristics and fatty acids composition in dairy goat milk in response to roughage diet
Provedor de dados: 52
Autores: Torii,Marcelo Shizuo; Damasceno,Júlio César; Ribeiro,Luciano da Rocha; Sakaguti,Eduardo Shiguero; Santos,Geraldo Tadeu dos; Matsushita,Makoto; Fukumoto,Nelson Massaru.
The objective of the present work was to evaluate the physical-chemical characteristics (density, pH, acidity, fat, protein, lactose and total of solids contents) and milk fatty acids composition (C: 4 to C: 20) in response to roughage sources (alfalfa hay T1; oat hay T2 and maize silage T3). Nine Saanen lactating goats were used, in a triple Youden square design (3 animals x 2 periods). There was no treatment effects in the physical-chemical variables in the univariate analyses; by multivariate analyses three distinct patterns of fatty acids could be defined: milk with greater quantity of short chain fatty acids and acids C17:1omega7 e C18:2omega6 (T1); milk with equivalent amounts of short, medium and long chain fatty acids (T2); and milk with greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alfafa hay; Maize silage; Milk quality; Milk composition; Oat hay; Saanen.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000600010

Association of TLR4 polymorphisms with subclinical mastitis in Brazilian holsteins
Provedor de dados: 58
Autores: Mesquita,Adriano Queiroz de; Rezende,Cintia Silva Minafra e; Mesquita,Albenones José de; Jardim,Eurione Antonio Garcia da Veiga; Kipnis,Ana Paula Junqueira.
The identification of dairy cows with greater or lower potential to develop mastits has been pursued for many years among different segments of the milk industry, including governmental organizations. Genomic studies have suggested that Single Nucleotide Polymorphisms (SNPs) within the pattern recognition receptors (PRR) could lead to different responses to pathogens, and consequently result in mastitis resistance or susceptibility. To investigate whether toll like receptor 4 (TLR4) gene is associated with subclinical mastitis in Holstein cows from a property in the state of Goiás, Brazil, TaqMan allelic discrimination and somatic cell count were performed. One hundred and fifty milk samples were analyzed for SCC and centesimal composition. Twenty percent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TLR-4; Single nucleotide polymorphism; Mastitis; Milk quality.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200034

Impact of farm size on milk quality in the Brazilian dairy industry according to the seasons of the year
Provedor de dados: 65
Autores: Marcondes,Marcos Inácio; Brandão,Virgínia Lúcia Neves; Ferreira,Gustavo Antônio Torres; Silva,Alex Lopes da.
ABSTRACT: Milk produced in Brazil has been seen as having poor quality and is associated with a large number of small farms. However, there are few studies demonstrating lower quality of milk of small properties. Thus, this study aimed to evaluate the relationship between production scale on dairy farms and milk quality, how it behaviors throughout the year and set goals to improve quality according to each strata. A total of 21,917 analysis of 409 farmers conducted from January 2005 to December 2014 were used. To study the database, the properties were divided according to monthly average daily milk yield: 10 to 100; 100 to 200; 200 to 500; 500 to 1,000; and 1,000 to 5,000L of milk day-1. The data showed that dairy farming is predominantly carried out on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milk production; Milk quality; Somatic cell count; Total bacterial count.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001100451

Infrared or ultrasonic milk analysis can affect its results?
Provedor de dados: 65
Autores: Manske,Guilherme Augusto; Rigo,Elisandra; Gomes,Fábio José; Schogor,Ana Luiza Bachmann.
ABSTRACT:  Constant monitoring of milk quality by the processing industries demands the use of methodologies that add agility and low-cost analysis, such as the use of electronic equipment based on infrared or ultrasonic spectroscopy. In the present study, quality of raw milk received by dairy farms from western region of Santa Catarina state, Brazil, was evaluated throughout two methodologies of analysis of chemical composition and compared, being that both equipment used standard procedures for calibration, considering as reference data from the classic analytical methods recommended in Brazilian legislation. Milk samples from 45 producers were analyzed for SCC, TBC and physicochemical analysis, performed at dairy’s laboratory and at the official...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Composition; Fast methods; Fat; Milk quality; Protein.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000700451

Antibiotic residues in pasteurized and unpasteurized milk marketed in southwest of Paraná, Brazil
Provedor de dados: 65
Autores: Schlemper,Valfredo; Sachet,Ana Paula.
ABSTRACT: The treatment of dairy cattle with antibiotics may lead to milk contamination by drugs residues, which represents risks to human health. This study aimed to investigate the presence of antibiotic residues in milk, produced and marketed in Capanema microregion, Paraná, Brazil, through the analysis of pasteurized milk samples from different brands consumed by the local population and unpasteurized milk samples provided by a dairy industry. Enzyme immunoassays screening kits SNAPduo™ Beta-Tetra ST Test (Idexx Laboratories) were used, which verified the presence of β-lactam and tetracyclic drugs residues, as well as enzyme immunoassays screening kits Charm ROSA Test (Charm Sciences), which established the presence of quinolones and sulfonamides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antibiotic; Milk quality; Public health; Food safety; Pasteurization.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200451

Milk composition of Holstein cows: a retrospective study
Provedor de dados: 65
Autores: Bondan,Carlos; Folchini,Jéssica Aneris; Noro,Mirela; Quadros,Daniel Lazzari; Machado,Karine Martini; González,Félix Hilário Diaz.
ABSTRACT:  Worldwide, milk analysis is an satisfactory measurement of milk quality on dairy farms. Milk composition is the base for payment systems, so knowledge of its characteristics at different periods is essential for modern dairy producer. The aim of the study was to evaluate the effects of year, season, stage of lactation, and lactation number on variations in milk yield and composition of Holstein cows (n=148,604). Milk yield estimated by multiple regression was 25,50L/cow/day. Winter was the season with the highest milk yield and the highest protein and lactose content. Milk fat was highest in the fall, in cows in late lactation and also in primiparous cows. Lactating cows from 6 to 60 days in lactation and those in 2nd or 3rd lactation showed the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milk quality; Lactation number; Seasonality; Stage of lactation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200650

Performance of holsteins cows in pasture of Cynodon dactylon cv. Coast-cross supplemented with concentrate
Provedor de dados: 64
Autores: Cardoso,Rodrigo Carvalho; Paiva,Paulo César de Aguiar; Vilela,Duarte.
The work was developed in the experimental station of Embrapa Gado de Leite (Dairy Cattle Embrapa), in Coronel Pacheco, in Zona da Mata Region of Minas Gerais, with the purpose of evaluating the productive performance of Holstein cows kept on 'Coast-cross' (Cynodon dactylon (L.) Pears) pasture, fertilized, strategically irrigated and where the cows were daily supplemented with 3 or 6 kg of concentrate/cow/day. The data were collected during three years (October/2000 to October/2003), involving 108 lactations. An experimental randomized block design with two replicate areas per treatment was adopted, with nine animals per area and eighteen animals per treatment being utilized, with fixed stocking rate of five cows/ha. The system of grazing, under rotated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutrition; Intake; Grazing; Milk production; Milk quality; Reproductive performance.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000600029