| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Avic.
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| País: |
Brazil
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| Título: |
Growth and body nutrient deposition of two broiler commercial genetic lines
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| Autores: |
Marcato,SM
Sakomura,NK
Munari,DP
Fernandes,JBK
Kawauchi,ÍM
Bonato,MA
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| Data: |
2008-06-01
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| Ano: |
2008
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| Palavras-chave: |
Body composition
Broilers
Growth
Gompertz curves
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| Resumo: |
The objective of this work was to study growth and body nutrient deposition profiles of male and female Cobb and Ross broilers using Gompertz equations. A total number of 1,920 one- to 56-day-old broilers were used. A randomized experimental design in a factorial arrangement (2 strains x 2 sex), with 4 replicates of 120 birds each, was applied. Diets were formulated to supply the nutrient requirements recommended by the genetic companies. A sample of birds was weekly weighed and sacrificed after 24 hours fasting. Carcasses were de-feathered and weighed again. The parameters of the Gompertz equation for body weight and its components (water, ashes, protein, and fat) were estimated. An interaction (p<0.05) between sex and breed was observed for mature weight (Wm) (kg), growth rate (b) (daily) and time at maximum growth rate (t*) (day) of body weight, and body water and ash. Cobb was presented earlier growth and body protein and ash deposition. Ross strain was superior in body water deposition.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000200007
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| Editor: |
Fundação APINCO de Ciência e Tecnologia Avícolas
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| Relação: |
10.1590/S1516-635X2008000200007
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Poultry Science v.10 n.2 2008
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| Direitos: |
info:eu-repo/semantics/openAccess
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