Effects of fermented feed on slaughter performance,organ development and muscle quality of squabs
T his experiment was conducted to study the effects of fermented feed on slaughter performance,visceral organ development and muscle quality of squabs under'2+3'production mode.A total of 60 healthy 8-month-old Karnau breeders with similar average body weight(about 560 g)and laying performance were randomly divided into control group(group C)and experimental group(group F),with 5 replicates in each group(6 pairs of breeders/replicate).Group C and group F were fed the diets of diet+conventional meat pigeon health sand and diet+fermented feed mixed with conventional meat pigeon health sand(1:1),respectively.The experimental period was 50 days(including 7 days of pre-feeding period and 43 days of experimental period).The results showed that the addition of fermented feed to the diet significantly increased the live weight,slaughter weight,slaughter rate,semi-eviscerated weight,semi-eviscerated rate,total eviscerated weight(P＜0.01)and breast muscle weight(P＜0.05)of squabs.The glandular stomach weight,glandular stomach index,liver weight,liver index,lung weight,lung index,kidney weight(P＜0.01)and spleen weight(P＜0.05)of squabs in group F were significantly higher than those in group C;Feeding fermented feed significantly reduced the conductivity of breast muscle(P＜0.01),increased the L*value of breast muscle(P＜0.01)and the amino acid composition of breast muscle(P＜0.05).The results indicated that the addition of fermented feed to the diet significantly improved the slaughter performance,visceral organ development and meat quality of squabs,which could provide reference for meat pigeon farmers.
万方数据
维普
