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Arginine improves nutritional quality of sow milk and piglet performance R. Bras. Zootec.
Moreira,Rennan Herculano Rufino; Lanferdini,Eloiza; Fonseca,Leonardo da Silva; Chaves,Rhuan Filipe; Garbossa,Cesar Augusto Pospissil; Saraiva,Alysson; Nogueira,Eduardo Terra; Abreu,Márvio Lobão Teixeira de.
ABSTRACT The objective of this study was to evaluate the effect of L-arginine supplementation in lactation diets on the productive and reproductive performance of pluriparous sows and their litters. Seventy-six sows of the same genetic line were assigned to four treatments in a completely randomized design with 19 replicates. The experimental unit was the sow and its respective litter. Treatments comprised a control diet (no L-arginine supplementation) and other three diets obtained by top dressing the control diet with 0.5, 1.0, and 1.5% of L-arginine. L-arginine supplementation had no effect on any performance variables, body condition, milk production, or weaning-estrus interval. There was a quadratic effect on percentage of protein and fat in milk as...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acid; Lactation; Milk composition; Reproduction; Swine.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100530
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Economic values for milk production and quality traits in south and southeast regions of Brazil R. Bras. Zootec.
Cardoso,Vera Lucia; Lima,Maria Lucia Pereira; Nogueira,José Ramos; Carneiro,Raul Lara Resende de; Sesana,Roberta Cristina; Oliveira,Elisa Junqueira; El Faro,Lenira.
The objective of this study was to calculate economic values for milk (MY), protein (PY) and fat productions (FY) and somatic cell count (SCC) which could be used to compose an economic index to rank animals involved in an international genetic evaluation program of Holstein cattle used in the commercial dairy population in Brazil. The main milk production systems (MPS) prevailing in the South and Southeast were defined based on the feeding management and production level of herds. To calculate feeding costs, energy requirements for the production of one kg of milk with the respective average protein and fat contents of each MPS were calculated. Feeding costs were obtained based on the regional prices of the diets' components. To calculate revenues, milk...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dairy cattle; Milk composition; Selection index.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001200636
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Effect of STAT1, OLR1, CSN1S1, CSN1S2 , and DGAT1 genes on milk yield and composition traits of Holstein breed R. Bras. Zootec.
Ardicli,Sena; Soyudal,Bahadir; Samli,Hale; Dincel,Deniz; Balci,Faruk.
ABSTRACT The objectives of the study were to evaluate allelic frequencies and test the association between STAT1, OLR1, CSN1S1, CSN1S2 , and DGAT1 gene polymorphisms and milk production traits including lactation milk yield, 305 days milk yield, days before peak milk production, and peak milk yield. In addition, samples of milk were analysed for fat, protein, lactose, and total solid contents. A total of 168 purebred Holstein-Fresian cows were genotyped using polymerase chain reaction and restriction fragment length polymorphism methods. Statistical analysis was carried out using least square methods of the general linear model procedure. Significant differences were found between genotypes of the CSN1S2 locus in relation to milk protein content. In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Dairy cow; Milk composition; Polymorphism.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100411
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Effect of Two Cowpea (Vigna unguiculata) Fodder Cultivars as Supplements on Voluntary Intake; Milk Yield and Manure Production of Bunaji Cows JARTS
Akinlade, J. A.; Smith, J. W.; Raji, A. M.; Busari, A. A.; Adekunle, I. O.; Adewumi, M. K..
The feeding value of fodder from two cowpea cultivars to a basal maize stover diet was investigated using fifteen lactating White Fulani (Zebu) cows. The two cultivars were IT-716 and 994-DP. Diet was constituted as 50g DM/kg live weight and each of the cultivars was supplemented at 50% of the daily dry matter requirement of individual animals. The experimental design was a complete randomize. The parameters measured included feed intake, milk yield and composition and manure production. In a separate trial, dry matter degradation of the fodder was assessed. There were no significant differences in dry matter intake of the supplements. However, the dry matter intake of stover in the control diet was higher than those on the supplemented groups. The milk...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal Science and Zoology; Agronomy and Crop Science Lactating Zebu cows; Forage legume; Milk yield; Milk composition; Cowpea; Vigna unguiculata.
Ano: 2005 URL: http://www.jarts.info/index.php/jarts/article/view/87
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El sistema familiar de producción de leche bovina en el municipio de Nopalucan, Puebla. Colegio de Postgraduados
Abrego Castillo, Himelda.
El objetivo de la presente investigación fue conocer la estructura y funcionalidad productiva y económica del sistema de producción de leche del municipio de Nopalucan, Puebla. La información se obtuvo de visitas técnicas y la aplicación de un cuestionario en 50 unidades de producción. Y se analizó con estadística descriptiva, análisis de varianza y métodos multivariados, que permitieron definir las tipologías de las explotaciones. En la parte estructural, se encontraron en promedio, hatos compuestos por 7.9 cabezas de bovinos Holstein y sus cruzas con Suizo y Jersey, de las cuales, 2.5 fueron vacas en producción; la superficie agrícola fue de 4.4 ha, con productores de 53 años de edad y con una experiencia de 21.9 años dedicados a la actividad lechera,...
Palavras-chave: Sistemas de producción; Bovinos lecheros; Composición de leche; Livestock production systems; Dairy cattle; Milk composition; Estrategias para el Desarrollo Agrícola Regional; EDAR; Maestría.
Ano: 2011 URL: http://hdl.handle.net/10521/613
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Elephant grass ensiled with wheat bran compared with corn silage in diets for lactating goats R. Bras. Zootec.
Silva,Jacianelly Karla da; Oliveira,Juliana Silva de; Medeiros,Ariosvalo Nunes de; Santos,Edson Mauro; Magalhães,Tamires da Silva; Ramos,Alenice Ozino; Bezerra,Higor Fábio Carvalho.
The objective of this study was to evaluate the use of wheat bran as an additive in elephant-grass silage on intake and digestibility of the nutrients, ingestive behavior, and yield and chemical composition of milk. Eight goats with 45 days of lactation were distributed in a (4 × 4) Latin square design.The treatments consisted of corn silage (CS), elephant-grass silage without wheat bran (EGS), elephant-grass silage with 10% wheat bran (EGS+10%WB), and elephant-grass silage with 20% wheat bran (EGS+20% WB). There was no difference in dry matter (DM) intake between diets EGS and CS in g d−1. However, the animals fed EGS+10%WB had lower DM and organic matter (OM) intakes than the animals fed CS in g kg−1 d−1 of body weight. There were lower non-fiber...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Additive; Caprine; Ethology; Milk; Milk composition; Nutritive value.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100618
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Farm Level Economic Implications of Genetic Selection for Improving Milk Fat Composition AgEcon
Demeter, Robert Milan; Bovenhuis, Henk; Kristensen, Anders Ringgaard; Oude Lansink, Alfons G.J.M.; Meuwissen, Miranda P.M.; van Arendonk, Johan A.M..
The objective of the study was to assess the farm level economic implications of value-adding genetic selection strategies to improve milk fat composition. Selection based on a quantitative trait (ratio of total saturated to total unsaturated fatty acids in milk) or a known genotype (for the DGAT1 gene) was considered. Technical and economic performance of hypothetical herds were computed by a herd optimization and simulation model. It was assumed that the herds are already bred for the specific milk composition, and the transition period was not considered. Correlated effects of the selection scenarios on milk production, female fertility, and functional longevity traits were accounted for. Results showed that increasing the total unsaturated fatty acids...
Tipo: Conference Paper or Presentation Palavras-chave: Dairy cattle; Genetic selection; Milk composition; Farm economics; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/114444
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Forage cactus associated with different fiber sources for lactating Sindhi cows: production and composition of milk and ingestive behavior R. Bras. Zootec.
Saraiva,Carla Aparecida Soares; Gonzaga Neto,Severino; Henriques,Lara Toledo; Queiroz,Maria Fernanda Soares; Saraiva,Edilson Paes; Albuquerque,Rômulo Pontes de Freitas; Fonseca,Vinicius de França Carvalho; Nascimento,George Vieira do.
The objective of this study was to evaluate the association of forage cactus with different fiber sources (elephant grass hay - EGH; corn straw - CS, hay of cassava shoots - HCS; fresh sugarcane bagasse - FSB; and hydrolyzed sugarcane bagasse - HSB) on the milk yield and composition and the feeding behavior of lactating Sindhi cows. Five cows with average body weight, average daily milk yield, and average daily 4%-fat-corrected milk yield of 265, 4.95 and 5.22 kg, respectively, were used in a 5 × 5 Latin square design. The effect of experimental diets on milk yield and composition, feeding time (FT), rumination time (RT), idle time, mean values of total chewing time (TCT), number of ruminal boli (NRB), number of rumination chews (NRC), and feed efficiency...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feeding behavior; Milk composition; Milk production; Roughage; Zebu.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000200060
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Influence of lactation stages and rain periods on subclinical mastitis in meat producing ewes Ciência Rural
Zafalon,Luiz Francisco; Fim Júnior,Guilherme Aparecido; Vaso,Carolina Orlando; Lopes,Nahryda Samara dos Santos; Veschi,Josir Laine Aparecida; Santana,Raul Costa Mascarenhas.
ABSTRACT: Mastitis negatively influences the survival and weight gain of ovines for meat production. The purpose of this study was to investigate, in sheep for meat production, the occurrence of subclinical mastitis in ewes at the end of lactation and beginning of the consecutive lactation and to assess the composition and cellular characteristics of milk as a function of different rainfall indices. Mammary halves (821) of Santa Ines (479) and Morada Nova (342) ewes were examined. Milk samples were collected in two different moments of lactation: at weaning and postpartum of the consecutive lactation. Sample collection periods were called "dry" or "rainy" according to the rainfall index in the month immediately before the month of collection. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Milk composition; Somatic cell count; Rainfall indices; Sheep.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001797
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Influence seasons of the year and somatic cell counts on physical-chemical and sensory parameters of milk and coalho cheese Animal Sciences
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 (> 800,000 cells mL-1) and low SCC levels (<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
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Milk production and ingestive behavior of cows grazing on Marandu and Mulato II pastures under rotational stocking R. Bras. Zootec.
Demski,Joana Baptista; Arcaro Junior,Irineu; Gimenes,Flavia Maria de Andrade; Toledo,Luciandra Macedo de; Miranda,Mariana Santos de; Giacomini,Alessandra Aparecida; Silva,Gianni Aguiar da.
ABSTRACT The objective of this study was to evaluate milk production and ingestive behavior of Holstein cows and the structural characteristics of Mulato II, a hybrid Brachiaria grass CIAT 36087 (B. ruziziensis × B. decumbens × B. brizantha), and Marandu (Brachiaria brizantha cv. Marandu) pastures under rotational stocking. The experiment was conducted from December 2011 to April 2012 after 10 months of adaptation to the grazing management objectives (25 cm pre-grazing height and 15-20 cm post-grazing height). An area of 4 ha was divided into 28 paddocks: 14 with Mulato II pasture and 14 with Marandu pasture. The treatments consisted of the two grasses and a completely randomized design of the grazing variables with six repetitions each (paddock of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria; Dairy cow; Nutritional value; Milk composition; Pasture; Tropical forage.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100708
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Milk quality of Jersey cows kept on winter pasture supplemented or not with concentrate R. Bras. Zootec.
Gonzalez,Helenice de Lima; Velho,Ione Maria Pereira Haygert; Silva,Marcelo Abreu da; Medeiros,Renato Borges de; Paim,Nilton Rodrigues; Nörnberg,José Laerte.
This study was carried out to evaluate the effect of the use of supplementation in pasture cultivated with Avena strigosa (black oats), Lolium multiflorum (ryegrass) and Vicia sativa L. (common vetch) on the composition and somatic cells count (SCC) of Jersey cow milk. Eight cows of the Jersey breed were separated by milk production, lactation period and live weight and were randomly blocked into two homogeneous groups (one with supplementation and other only on pasture), in a randomized complete design. Both groups were allowed to pasture for about 7 hours per day in a rotational grazing system in strips, with a one-day occupation period. The supplemented group was fed daily with 8 kg of supplement made of soy bean meal, soy shells, calcium limestone and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Milk composition; Pasture; Somatic cells count.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009001000018
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Milk yield and reproductive performance of dairy heifers and cows supplemented with polyunsaturated fatty acids PAB
Gonzalez,Félix; Muiño,Rodrigo; Pereira,Víctor; Martinez,Diego; Castillo,Cristina; Hernández,Joaquín; Benedito,José Luis.
The objective of this work was to determine productive and fertility responses of Holstein-Friesian heifers and cows to supplementation with extruded linseed and soybean as sources of polyunsaturated fatty acids (PUFAs). Supplementation had a positive effect on profitability, with significant increases in milk yield in supplemented cows, but not in heifers. Treatments had no effect on milk fat content, but higher milk protein contents were observed with supplementation. A higher conception rate was found for supplemented heifers, but not for cows. Fat sources containing PUFAs are recommended for dairy cattle supplementation, since they improve fertility in heifers and milk yield in cows.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Extruded linseed; Extruded soybean; Fertility; Long-chain fatty acids; Milk composition; PUFA..
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000400306
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Multinutritional blocks as a food strategy to optimize the use of concentrate for lactating goats Animal Sciences
Ramos, Joao Paulo de Farias; Sousa, Wandrick Hauss de; Cavalcante, Iara Tamires Rodrigues; Oliveira, Juliana Silva; Santos, Edson Mauro; Pimenta Filho, Edgard Cavalcanti; Freitas, Fabianna Fortuna de; Leite, Ricardo Miranda.
The objective of this study was to evaluate the use of multinutritional blocks (BMs) associated with the concentrate content in the diet of lactating goats and their effects on milk production and economic viability. Eight goats Parda Alpina, multiparas were distributed in two Latin squares (4x4). The experiment consisted of four treatments (0.971, 0.746, 0.521 and 0.296 kg concentrate day-1 per goat) and BMs ad libitum. It was evaluated the consumption, milk monitoring and the system was analyzed economically. If there was a significant effect of the concentrate, the control treatment was compared to the others using the Dunnett test and 5% regression analysis. When the concentrate contents were high in the diets, the total dry matter intake decreased...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.00.00-2 5.04.05.00-4 Feeding plans; Milk composition; Profitability..
Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/47441
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Partial replacement of soybean meal with pea grains and sunflower cake in ewe diets: milk quality and blood biochemical parameters R. Bras. Zootec.
Antunović,Zvonko; Šperanda,Marcela; Mioč,Boro; Klir,Željka; Ćavar,Suzana; Novoselec,Josip.
ABSTRACT The objective of this research was to evaluate the effect of pea and sunflower cake as partial replacement for soybean meal in diet, as well as to assess their effect on milk quality during lactation and on blood parameters of ewes kept in organic farming. The research was carried out with 30 ewes of Merinolandschaf breed during 75 days. Ewes were given mixtures based on soybean meal as a protein source in control group (SBM), while in experimental groups, soybean meal was partially replaced with pea grain (P) and sunflower cake (SFC). Biochemical parameters (urea, glucose, total protein, albumin, globulins, cholesterol, HDL, LDL, triglyceride, β-hydroxybutyrate, and non-esterified fatty acids), as well as enzyme activity (ALT, AST, ALP, GGT, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blood parameters; Ewes; Milk composition; Protein source.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100718
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Performance of dairy cows fed rations produced with sugarcane silages treated with additives or fresh sugarcane R. Bras. Zootec.
Pedroso,André de Faria; Nussio,Luiz Gustavo; Rodrigues,Armando de Andrade; Santos,Flávio Augusto Portela; Mourão,Gerson Barreto; Barioni Júnior,Waldomiro.
An experiment was performed aiming at evaluating the performance of dairy cows fed sugarcane silages treated with additives compared to cows fed fresh forage. Twenty-four Holstein cows were grouped in blocks of three cows, according to parity order and milk production level, in multiple 3 x 3 Latin Square design to evaluate three types of ration (63% roughage and 37% concentrate in dry matter - DM): ration with silage treated with urea (5.0 g/kg of fresh forage - FF) + sodium benzoate (0.5 g/kg FF); ration with silage inoculated with Lactobacillus buchneri (5 x 10(4) cfu/g FF); ration with fresh sugarcane. Each evaluation period consisted of two weeks for adaptation and one week for data collection. Cows fed rations with silages treated with urea +...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feed efficiency; L. Buchneri; Milk composition; Milk production; Sodium benzoate; Urea.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000900005
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Performance of lactating dairy cows fed sunflower or corn silages and concentrate based on citrus pulp or ground corn R. Bras. Zootec.
Leite,Leonardo Andrade; Reis,Ronaldo Braga; Pimentel,Patrícia Guimarães; Saturnino,Helton Mattana; Coelho,Sandra Gesteira; Moreira,Guilherme Rocha.
ABSTRACT This study aimed to evaluate the effect of diets containing sunflower or corn silages and concentrate based on citrus pulp or ground corn on intake, apparent digestibility, feeding behavior, microbial protein production, and production, composition, and fatty acid profile of milk from dairy cows. Eight multiparous lactating Holstein cows (586±61 kg live weight; 25.0±4.0 kg daily milk yield at 80 to 120 days in milk) were randomly assigned to a double 4 × 4 Latin square design with a 2 × 2 factorial array. The experimental diets were: sunflower silage + citrus pulp-based concentrate; sunflower silage + ground corn-based concentrate; corn silage + citrus pulp-based concentrate; and corn silage + ground corn-based concentrate. The dry matter intake...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestibility; Fatty acids; Intake; Milk composition.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100056
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Physical-chemical characteristics and fatty acids composition in dairy goat milk in response to roughage diet BABT
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
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Prediction of bovine milk true protein content by mid-infrared spectroscopy Ciência Rural
Botaro,Bruno Garcia; Cortinhas,Cristina Simões; Mestieri,Lucinéia; Machado,Paulo Fernando; Santos,Marcos Veiga dos.
The aim of this study was to estimate the concentration of milk true protein (TP) by mid-infrared absorbance method (MIR) in samples from bulk tank of dairy herds, and to determine the correlation between the results of TP of milk determined by Kjeldahl and MIR. Forty nine dairy herds were selected (17 Holstein, 6 Jersey and 26 Girolando) for monthly collections of samples from bulk tanks during the period of one year (284 samples). Fat, lactose, crude protein and total solids were firstly determined by MIR, and then analyzed for total and true protein by Kjeldahl method. The regression equation to estimate TP contents based on MIR crude protein determination was as follows: TP=0.0021+(1.0104xCP), where: TP is the content of true protein, CP is the crude...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dairy cow; Milk composition; Protein determination.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782011000800028
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Quality based payment program and milk quality in dairy cooperatives of Southern Brazil: an econometric analysis Scientia Agricola
Botaro,Bruno Garcia; Gameiro,Augusto Hauber; Santos,Marcos Veiga dos.
Programs designed to enhance milk quality have been used to motivate dairy farmers to improve the quality of the raw milk they produce. The objective of this study was to evaluate the association between a milk quality payment program and four indicative variables of milk quality, by testing bulk tank somatic cell count (SCC), bulk tank total bacterial count (TBC), fat (FAT) and protein (PROT) percentages over three years in four dairy cooperatives in Southern Brazil. We used a multiple regression econometric model estimated from market data of milk delivered by farmers to the cooperatives. Bulk tank milk samples (n = 19,644) were monthly collected. The data set was analyzed for the effects of seasonality, average daily volume of milk, the award/penalty,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterial count; Somatic cell count; Premium payment; Milk composition; Milk production.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000100004
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