"Current research was conducted to compare carcass and meat. quality traits (cholesterol content and collagen properties) of different. lines and generations of adult Japanese quail. Forty-four. quails (generation F0), 22 meat type males (F-33) and 22 laying. type females (S-22), were reciprocally crossed to produce the F1. hybrids generation (24 males and 24 females). The birds (F0 and. F1) were raised to 24 weeks of age (F0: 6 birds in each 6 cages. and 4 birds in each 2 cages; F1: 6 birds in each 8 cages), and fed. ad libitum the same commercial diet, according to their age,. with free access to water. In the F0 generation, F-33 had higher. (P<0.01) final body and carcass weights, carcass yield, and. abdominal fat than S-22 quails. The muscle cholesterol content. was found to be similar between the two lines. Compared with S-. 22 birds, those of F-33 had similar intramuscular collagen (IMC). amount (14.14 vs 13.22 μg\/mg, respectively; SEM=0.61) but. slightly higher degree of collagen maturation (0.121 vs 0.098 mol. of HLP\/mol of collagen, respectively; SEM=0.008; P<0.07) and. hydroxylysylpyridinoline (HLP) concentration (P<0.01). In the. F1 generation, females showed higher (P<0.01) live weight and. slaughter performance than males; while, carcass yield and. abdominal fat were higher (P<0.01) in males. Cholesterol content. and IMC concentration were not significantly influenced by. sex. Otherwise, males had higher (P<0.01) muscle HLP concentration. (μg\/mg) and collagen maturation (0.144 vs 0.119 mol of. HLP\/mol of collagen; SEM=0.008) than females. Compared to. female of F0 generation, hybrid females showed better slaughter. performance and a notably reduction of muscle cholesterol content. (80.26 vs 67.05 mg\/100g, respectively; SEM=1.66; P< 0.01),. as well as a lower (P<0.01) IMC concentration (11.58 vs 13.22. μg\/mg, respectively; SEM=0.28) and higher (P<0.01) degree of. collagen maturation (+21%, HLP\/collagen). The same trend was. found in hybrid males compared to F0 males. Results suggest. that carcass and meat quality traits of the two generations were. influenced by gender; meat from descendants of Japanese quail. lines’ parents (F1) had lower cholesterol and higher degree of. collagen maturation than those of F0 generation."
Effects of genotype and sex on carcass traits and meat quality in two Japanese quail generations
TAVANIELLO, Siria;MAIORANO, Giuseppe
2013-01-01
Abstract
"Current research was conducted to compare carcass and meat. quality traits (cholesterol content and collagen properties) of different. lines and generations of adult Japanese quail. Forty-four. quails (generation F0), 22 meat type males (F-33) and 22 laying. type females (S-22), were reciprocally crossed to produce the F1. hybrids generation (24 males and 24 females). The birds (F0 and. F1) were raised to 24 weeks of age (F0: 6 birds in each 6 cages. and 4 birds in each 2 cages; F1: 6 birds in each 8 cages), and fed. ad libitum the same commercial diet, according to their age,. with free access to water. In the F0 generation, F-33 had higher. (P<0.01) final body and carcass weights, carcass yield, and. abdominal fat than S-22 quails. The muscle cholesterol content. was found to be similar between the two lines. Compared with S-. 22 birds, those of F-33 had similar intramuscular collagen (IMC). amount (14.14 vs 13.22 μg\/mg, respectively; SEM=0.61) but. slightly higher degree of collagen maturation (0.121 vs 0.098 mol. of HLP\/mol of collagen, respectively; SEM=0.008; P<0.07) and. hydroxylysylpyridinoline (HLP) concentration (P<0.01). In the. F1 generation, females showed higher (P<0.01) live weight and. slaughter performance than males; while, carcass yield and. abdominal fat were higher (P<0.01) in males. Cholesterol content. and IMC concentration were not significantly influenced by. sex. Otherwise, males had higher (P<0.01) muscle HLP concentration. (μg\/mg) and collagen maturation (0.144 vs 0.119 mol of. HLP\/mol of collagen; SEM=0.008) than females. Compared to. female of F0 generation, hybrid females showed better slaughter. performance and a notably reduction of muscle cholesterol content. (80.26 vs 67.05 mg\/100g, respectively; SEM=1.66; P< 0.01),. as well as a lower (P<0.01) IMC concentration (11.58 vs 13.22. μg\/mg, respectively; SEM=0.28) and higher (P<0.01) degree of. collagen maturation (+21%, HLP\/collagen). The same trend was. found in hybrid males compared to F0 males. Results suggest. that carcass and meat quality traits of the two generations were. influenced by gender; meat from descendants of Japanese quail. lines’ parents (F1) had lower cholesterol and higher degree of. collagen maturation than those of F0 generation."I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
