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| Nascimento,Karina Márcia Ribeiro de Souza; Kiefer,Charles; Mauad,Juliana Rosa Carrijo; Paiva,Luanna Lopes; Berno,Patricia Rodrigues; Marçal,Danilo Alves; Freitas,Henrique Barbosa de. |
| ABSTRACT The purpose of this study was to evaluate the effect of glutamine supplementation plans on performance, carcass yield, and cut yield of broilers reared in a high-temperature environment. A fully randomized design was adopted for the experiment, comprising 900 male Hubbard broiler chicks assigned to five treatment groups (0% glutamine from one to 42 days of age; 0.5% glutamine from 1 to 7 days of age, followed by 0% from 8 to 42 days; 1.0% glutamine from 1 to 7 days of age, followed by 0.5% from 8 to 14 days and 0% from 15 to 42 days; 1.5% glutamine from 1 to 7 days of age, followed by 1.0% from 8 to 14 days, 0.5% from 15 to 21 days, and 0% from 22 to 42 days; 2.0% glutamine from 1 to 7 days of age, followed by 1.5% from 8 to 14 days, 1.0% from 15... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass yield; Intestinal structure; Performance. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300218 |
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| Pereira,Dayana Cristina de Oliveira; Miranda,Késia Oliveira da Silva; Demattê Filho,Luiz Carlos; Pereira,Gustavo do Valle; Piedade,Sonia Maria De Stefano; Berno,Patricia Rodrigues. |
| ABSTRACT The objective of this study was to evaluate the effect of the presence of roosters on welfare and egg production of laying hens reared in an alternative system. Two breeding systems were established: barn 1 - laying hens reared without roosters (4500 birds); and barn 2 - laying hens reared with roosters (4500 layers and 250 roosters). In the poultry facilities, microclimate, egg production, mortality rate, and bird behavior were evaluated. Microclimate analysis showed that the birds were subjected to periods of constant heat stress, except for the morning hours. However, even under these conditions, egg production results and mortality rate were consistent with the indices recommended in the Isa Brown management guide in the barn with roosters;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavior; Enthalpy; Husbandry environment; Laying hens. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300175 |
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