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| Registros recuperados: 1.268 | |
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| Henn,JD; Bockor,L; Ribeiro,AML; Coldebella,A; Kessler,A de M. |
| The objectives of the present study were to determine the parameters of Gompertz equations and to determine curves and growth rate, feed intake and body component deposition, as well as allometric coefficients of body water, protein, and fat relative to live weight of male and female broilers of intermediate performance (C44) and high performance (Cobb-500) genetic strains. In total, 384 one-d-old chicks were distributed into four treatments: male Cobb 500, male C44, female Cobb 500, and female C44, with six replicates of 16 birds, according to a completely randomized experimental design. Average body weight, weight gain, and feed intake were weekly determined, and six birds, representing the average weight of each treatment, were sacrificed to determine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body composition; Gompertz curve; Growth rate; Cobb 500; C44. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300014 |
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| Collatto,DC; Mansilha,RB; Chiwiacowsky,LD; Lacerda,DP. |
| ABSTRACT This paper intends to outline a model of multi-criteria analysis to pinpoint the most suitable energy source for heating aviaries in poultry broiler production from the point of view of the farmer and under environmental logic. Therefore, the identification of criteria was enabled through an exploratory study in three poultry broiler production units located in the mountain region of Rio Grande do Sul. In order to identify the energy source, the Analytic Hierarchy Process was applied. The criteria determined and validated in the research contemplated the cost of energy source, leadtime, investment in equipment, energy efficiency, quality of life and environmental impacts. The result of applying the method revealed firewood as the most appropriate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry raising; Heating; Energy sources; Decision making; Analytic hierarchy process. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000300363 |
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| Vieira,SL; Ribeiro,AML; Kessler,AM; Fernandes,LM; Ebert,AR; Eichner,G. |
| O produto comercialmente chamado "óleo ácido de soja", resulta da acidificação da borra residual do processo de refino do óleo de soja. Este tem sido muito utilizado na indústria de rações animais, ainda que com vários questinamentos a cerca de sua eficiência, tais como a adulteração com outros ácidos graxos de baixo valor nutricional, nível de peroxidação, presença de impurezas, e valores energéticos não confiáveis. Neste estudo, foi avaliado o desempenho de frangos de corte consumindo dietas contendo óleo de soja ou óleo ácido de soja nos níveis de 4 e 8% ou a mistura das duas fontes em partes iguais de 2 e 4% cada. Essas dietas foram fornecidas para frangos de corte alojados em baterias climatizadas a partir dos 7 dias de idade. As aves que receberam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ácidos graxos livres; Energia; Frango de corte; Gordura; Óleo ácido de soja. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200005 |
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| Guimarães,MB; Hurtado,R; Bello,CP; Vanstreels,RET; Ferreira,AJP. |
| ABSTRACT The geographic overlap between areas of Atlantic rainforest and human activities allows interactions to occur between humans and wild and domestic animals. Despite the great importance of the domestic animal-wildlife-human interface that occurs at poultry farms in terms of public health, economic production and wildlife conservation, there are few studies in Brazil examining the distribution and health of wild birds that interact with poultry farms. From January to December 2010, mist nets were used to capture 166 free-ranging birds that were within close proximity to three poultry farms in Atlantic rainforest remnants in south-eastern Brazil. The species composition was examined, and molecular methods were used to test for avian influenza virus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Surveillance; Atlantic rainforest; Poultry farms; Wild birds; Influenza virus; Newcastle disease virus; Mycoplasma gallisepticum. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300387 |
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| Santurio,JM. |
| Esta revisão tem como objetivo principal mostrar, baseado em dezenas de pesquisas realizadas, os efeitos tóxicos das micotoxinas aflatoxinas, tricotecenos, zealenona e fumonisinas sobre o desempenho das aves. O descobrimento das propriedades hepatotóxicas e hepatocarcinogênicas de algumas linhagens de Aspergillus flavus e A. parasiticus em perus, na Inglaterra, no início da década de 1960, seguida pela elucidação da estrutura de seus metabólitos tóxicos, as aflatoxinas, deu novo enfoque e prioridade para a pesquisa sobre micotoxinas. Análises de aflatoxinas realizadas no Laboratório de Análises Micotoxicológicas (LAMIC) da Universidade Fedaral de Santa Maria, entre os anos de 1986 e janeiro de 2000, em 15.600 amostras de alimentos destinados principalmente... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Micotoxinas; Aves; Efeitos tóxicos; Aflatoxinas; Tricotecenos; Zearalenona; Fumonisinas; Controle. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000100001 |
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| Bughio,E; Hussain,J; Mahmud,A; Khalique,A. |
| ABSTRACT The present study was planned to evaluate the growth performance, morphometrics, physiological and behavioral response of Naked Neck chicken under different production systems and nutritional regimens. For this, a total of 900 Naked Neck chickens of 6-weeks of age were used; the birds were divided into 10 treatment groups consisting of 5 replicates of 18 birds each. A 2×5 factorial arrangement of treatment was employed under Completely Randomized Design. Treatments were consisted of two production systems (intensive and free range) and five nutritional regimens (100% commercial feed, 75% commercial feed +25% kitchen waste, 50% commercial feed +50% kitchen waste, 25% commercial feed +75% kitchen waste and 100% kitchen waste). Body weight, heartbeat... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Production systems; Nutritional interventions; Naked neck; Growth performance; Behavioral response. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300311 |
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| Viola,TH; Kessler,A de M; Ribeiro,AML; Silva,ICM da; Krás,R. |
| Amino acid requirements can be studied maintaining or not the ratio of the amino acids to lysine and changing or not dietary crude protein level. A third alternative was studied in this study conducted to evaluate broiler performance and weight gain of carcass parts, in response to increasing dietary digestible lysine (dig Lys) levels (0.70, 0.80, 0.90, 1.00, 1.055, 1.11, 1.165, and 1.22%). Two basal diets were formulated to contain 19.0% (diet A) and 20.5% (diet B) crude protein, and Met, Arg and Thr levels were formulated to maintain their ideal ratio to Lys. Three hundred and twenty CobbXCobb500 broilers, from 19 to 40 days of age, were used. Basal diet A was set for the 4 lowest levels of dig Lys, and diet B for the other four levels. Body weight (BW),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid balance; Basal diets; Broiler; Lysine; Protein. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300003 |
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| Cortes-Cuevas,A; Ramírez-Estrada,S; Arce-Menocal,J; Avila-González,E; López-Coello,C. |
| Two experiments were conducted to evaluate the nutritional quality of two sources of low-oil distiller's dried grains with solubles (DDGS) and their pigmenting ability for broiler chicken skin and egg yolks. In Experiment 1, 360 Bovan-White hens between 69 and 77 weeks of age were randomly assigned to five dietary treatments with 6 replicates of 12 hens each. In Experiment 2, 375 Ross 308 broiler chickens were randomly assigned to five treatments with three replicates of 25 birds each. The chickens were fed the experimental diets from one to 42 d of age. In both experiments, treatments consisted of a basal diet with no DDGS, and diets with 6% or 12% inclusion of DDGS from two sources. In Experiment 1, no significant differences in performance were detected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Low-oil DDGS; Egg yolk pigmentation; Skin pigmentation; Abdominal fat; Carcass yield. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200247 |
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| Costa,LS; Pereira,DF; Bueno,LGF; Pandorfi,H. |
| Brazil is the world leader in broiler production and export. It achieved this position mainly to its excellent supply chain structure and climate, which favor poultry and grain production throughout its territory. Although Brazilian egg production is not as important as broiler production, this segment presents great potential of increasing its share in the global market. However, as elsewhere in the world, Brazilian poultry production faces the challenge to balance two elements within its supply chain: cruelty and productivity. The consumers of the European Union (EU) are very concerned with animal welfare issues. In order to increase its share in the European market, and eventually in the world market, Brazilian poultry producers must understand the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enriched environment; Precision poultry production; Consumer market; Productivity. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000300001 |
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| Yameen,RMK; Hussain,J; Mahmud,A; Saima,. |
| ABSTRACT Objectives of the present study were to assess the hatchery based interventions and their impact on hatching traits and subsequent performance of broilers. In total, 3000 eggs of Hubbard broiler breeders were equally divided into Small (50-55 g), Medium (56-61 g) and Large (62-70 g) eggs. The eggs from each category were distributed into 20 trays each containing 50 eggs. Each tray was considered as a replicate. At the end of the 18th day of incubation, the eggs of each weight category were divided into four different patio strategies i.e. P0, P3, P5 and P7 where feed and water were provided to the chicks for 0, 3, 5 and 7 days in the hatcher followed by conventional rearing. Data were collected for hatch window, hatching traits, growth, physical... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg weight; Patio; Hatch window; Growth; Welfare; Blood biochemistry. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000100304 |
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| Almeida Paz,ICL; Mendes,AA; Quinterio,RR; Vulcano,LC; Takahashi,SE; Garcia,RG; Komiyama,CM; Balog,A; Pelícia,K; Wescheler,FS; Scudeller,PSO; Piccinin,A. |
| The aim of this study was to follow-up the physiological variations in the development of the bone tissue, associating them with the egg production curve. This study was carried out in the facilities of the Faculdade de Medicina Veterinária e Zootecnia of the UNESP, Botucatu, Brazil. Twenty-three families of Ross broiler breeders were used, each family consisting of 13 females and 1 male, distributed in 23 pens of 5.0m² each. The management was that recommended by the genetic company manual (Agroceres Ross, 2003), with daily feeding until 6th week of age; and birds were fed according to a 5:2 schedule (5 days fed, 2 days of fasting) between 7 and 17 weeks of age, returning to daily feeding starting at 18 weeks of age. Birds did not receive afternoon... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone; Bone density; Broiler breeders; Egg production; Shell quality. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000200002 |
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| Santos,ICL; Teixeira,RSC; Lopes,ES; Albuquerque,AH; Rocha e Silva,RC; Salles,RPR; Machado,DN; Horn,RV; Bezerra,WGA; Buxade,CC; Maciel,WC. |
| This study aimed at evaluating bacterial shedding, as detected in swabs, feces, and eggs of quails submitted to forced molting by feed fasting and experimentally infected with a Salmonella Enteritidis (SE) strain. In the experiment, 84 40-week-old Italian female quails were distributed in the following groups: FI (quails induced to molt by fasting and inoculated with Salmonella Enteritidis - SE); CI (quails fed with a laying diet and inoculated with SE); FNI (quails induced to molt by fasting and not inoculated with SE); and CNI (quails fed with a laying feed and not inoculated with SE). Feces, cloacal swabs, and eggs were collected on day 1, 3, 7 and 14 post-inoculation (dpi) and submitted to bacteriological analyses. All samples obtained from cloacal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inoculation; Swabs; Forced molting. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100031 |
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| Sousa,JPL de; Albino,LFT; Vaz,RGMV; Rodrigues,KF; Da Silva,GF; Renno,LN; Barros,VRSM; Kaneko,IN. |
| The dietary inclusion of phytase increases nutrient and energy bioavailability for broilers. The effect of phytase increases nutrients and energy bioavailability for either the objective of this experiment was to evaluate the influence of nutrient and energy reduction in diets supplemented with phytase on the performance, gastrointestinal pH, organ and bone composition, and blood biochemistry of broilers between eight and 21 days of age. In the study, 1.120 male Cobb 500(r) broilers, with 161±1g average weight, were used. At eight days of age, birds were distributed according to a completely randomized experimental design with seven treatments in a 3x2+1 factorial arrangement with eight replicates of 20 broiler each. Treatments corresponded to reduction of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antagonism; Digestible amino acid; Egg components; Haugh units. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100069 |
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| Okur,N. |
| ABSTRACT This study investigated the effects of incubator carbon dioxide (CO2) and oxygen (O2) levels, and egg weight (EW) on embryo mortality (EM) and hatchability of fertile eggs (HFE). A total of 1920 hatching eggs were obtained from a middle-aged (41 weeks) ROSS 308 broiler breeder flock. The eggs were classified according to EW as heavy (69.63 ± 0.09 g), medium (65.20 ± 0.04 g) and light (61.11 ± 0.08 g) and randomly allocated to four separate identical incubators. To these incubators, four different incubator ventilation programmes (IVP) classified as control (C; 0.7% CO2 and 20.9% O2), high CO2 (HC; 1.1% CO2 and 20.3% O2), high O2 (HO; 0.6% CO2 and 22.0% O2), and high CO2 + O2 (HCO; 0.9% CO2 21.0% O2) were applied, and EM and HFE were examined. IVP... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler; Carbon dioxide; Egg weight; Incubation; Oxygen. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300310 |
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| Sousa,MS; Tinôco,I de FF; Amaral,AG; Inoue,KRA; Barreto,SL; Savastano Jr,H; Souza,CF; Paula,MO. |
| The objective of this study was to determine thermal comfort ranges, as evaluated by air temperature and black-glove temperature and humidity index (BGTHI), for starter meat-type quails. Nine hundred quails were randomly distributed into five environmental chambers. Each chamber was programmed to provide different temperatures weekly. The following thermal environments were provided: SC - severe cold, MC - moderate cold, TC - recommended comfort environment, MH - moderate heat, and SH - severe heat. The best live performance was obtained when quails were submitted to temperatures of 36-39 ºC and BGTHI of 87.1 ± 0.4 and 91.4 ± 0.6 during the first week of rearing. Temperatures of 27-30 ºC and BGTHI of 75.8 ± 0.4 and 79.9 ± 0.6, during the second week, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environment; Coturnix; Performance; Livability. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000300006 |
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| Registros recuperados: 1.268 | |
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