Desempenho e rendimento da carcaça de frangos submetidos a rações contendo diferentes níveis energéticos

Autor:	Cássio Xavier de Mendonça Júnior
Rok vydání:	1983
Předmět:	Animal science High energy diet Low energy diet Feed consumption Live weight General Materials Science Biology Feed conversion ratio
Zdroj:	Revista da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo. 20:161
ISSN:	2318-3659 0303-7525
DOI:	10.11606/issn.2318-3659.v20i2p161-175
Popis:	Indian River chicks were fed from 0 to 8 weeks of age, with diets containing high (3,200 kcal ME/kgl and low (2,900 kcal ME/kg) levels o f energy and 3 levels of protein (23%: 1-21 days: 21%: 22-42 days; 19% 43-56 days). At the end of the experimental period, birds fed high energy diet showed the best results of live weight and feed efficiency even though no differences in feed consumption were found between both levels of dietetic energy. Chickens fed high ME diet produced carcass weights and carcass yelds significantly higher than those obtained from birds fed the low energy diet. The percentage of bleeding and dressing losses, and moisture pick-up during the chilling operation, were significantly greater in females than males. Eviscerated carcasses obtained from birds fed low energy diet picked up more moisture during chilling than those from chickens fed the high energy diet.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::26917daddc6ee6f384f54bb6532fc543 https://doi.org/10.11606/issn.2318-3659.v20i2p161-175 Zobrazit plný text záznamu