1993
DOI: 10.3382/ps.0721005
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Carcass Composition, Feed Intake, and Feed Efficiency Following Long-Term Selection for Four-Week Body Weight in Japanese Quail

Abstract: A study was conducted to determine BW, feed intake, feed efficiency, and carcass composition changes following 51 generations of selection for high 4-wk BW in Japanese quail. Quail lines utilized were the P line selected for high 4-wk BW on a normal 28% CP diet and the unselected base population (C line) from which the P line originated. Body weight, feed intake, and feed efficiency data were collected daily from 1 to 28 days, whereas percentage carcass water, ash, protein, and total lipid data were obtained a… Show more

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Cited by 62 publications
(43 citation statements)
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“…Protein content in the empty body over the slaughters had little variation, although the water content tended to decrease, while fat tended to increase with advancing age of quails. Results confirm previous studies, where the advancing age of poultry causes reduction in the water percentage and increase in fat content (Marks, 1993;Rabello et al, 2002;Silva et al 2004b), which is common for maturity (Bennett & Leeson, 1990). Literature has reported a negative correlation between fat and water contents in the carcass of broilers (Bartov & Plavnik, 1998), growing pullets (Martin et al, 1994;Neme et al, 2006) and laying hens (Chwalibog, 1992).…”
Section: Resultssupporting
confidence: 80%
“…Protein content in the empty body over the slaughters had little variation, although the water content tended to decrease, while fat tended to increase with advancing age of quails. Results confirm previous studies, where the advancing age of poultry causes reduction in the water percentage and increase in fat content (Marks, 1993;Rabello et al, 2002;Silva et al 2004b), which is common for maturity (Bennett & Leeson, 1990). Literature has reported a negative correlation between fat and water contents in the carcass of broilers (Bartov & Plavnik, 1998), growing pullets (Martin et al, 1994;Neme et al, 2006) and laying hens (Chwalibog, 1992).…”
Section: Resultssupporting
confidence: 80%
“…No entanto, Oliveira (2001) não observou diferenças estatísticas para a mesma característica entre os grupos genéticos de codornas para produção de carne. Os pesos médios obtidos nesse experimento foram superiores aos encontrados na literatura (Hyanková et al, 2002;Marks, 1993;Marks, 1980), o que pode ser explicado pela diferença no peso dos ovos de linhagens de codornas especializadas na produção de carne e de linhagens voltadas para produção de ovos.…”
Section: Resultsunclassified
“…Os efeitos de linhagem ou grupo genético sobre as características de peso são bem documentados mesmo entre aves de mesmo tipo (Caron et al, 1990;Marks, 1993;Oguz et al, 1996). Nas últimas semanas de vida, pode-se observar que as aves apresentaram redução no ganho de peso (Figura 1), o que também foi observado por Almeida (2001).…”
Section: Resultsunclassified
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