摘要
The effect of mulberry leaf powder on growth,slaughter performance and meat quality of Wanxi white goose was investigated by adding different proportions of mulberry leaf powder in the basal goose diet. After 125-day-old Wanxi white geese were fed with diets supplemented with 5%,8% and 11% mulberry leaf powder for consecutive 50 d,the average daily feed intake increased slightly,while the average daily weight gain decreased extremely（ P 〈 0. 01）,and the ratio of feed to gain increased significantly（ P 〈 0. 01） compared to control. The slaughter rate,semi-eviscerated rate and eviscerated rate of Wanxi white goose in experimental groups Ⅱ,Ⅲ and Ⅳ were higher than those in control group,and the slaughter rate was significantly higher than that in control group（ P 〈 0. 05）. Adding mulberry leaf powder in diet significantly reduced the abdominal fat rate of Wanxi white goose（ P 〈 0. 01）,but had no significant impact on pectoral muscle rate and limb muscle rate（ P 〉 0. 05）. Compared to control group,the contents of dry matter,fat,crude protein,saturated fatty acid and unsaturated fatty acid of Wanxi white geese in experimental groups decreased significantly（ P 〈 0. 05）,and the content of total amino acids also decreased slightly. The inosinic acid content in muscle of Wanxi white goose in groups Ⅱ and Ⅳ were slightly higher than that in control group. The thiamine content of Wanxi white goose in group Ⅳ was 52. 00%higher than that in control group（ P 〈 0. 05）. These results preliminarily showed that adding appropriate amount of mulberry leaf powder in diet could significantly improve the slaughter performance of Wanxi white goose,and improve the flavor of meat. But high amount of mulberry leaf powder should be avoided to ensure the palatability of diet.
The effect of mulberry leaf powder on growth,slaughter performance and meat quality of Wanxi white goose was investigated by adding different proportions of mulberry leaf powder in the basal goose diet. After 125-day-old Wanxi white geese were fed with diets supplemented with 5%,8% and 11% mulberry leaf powder for consecutive 50 d,the average daily feed intake increased slightly,while the average daily weight gain decreased extremely（ P 〈 0. 01）,and the ratio of feed to gain increased significantly（ P 〈 0. 01） compared to control. The slaughter rate,semi-eviscerated rate and eviscerated rate of Wanxi white goose in experimental groups Ⅱ,Ⅲ and Ⅳ were higher than those in control group,and the slaughter rate was significantly higher than that in control group（ P 〈 0. 05）. Adding mulberry leaf powder in diet significantly reduced the abdominal fat rate of Wanxi white goose（ P 〈 0. 01）,but had no significant impact on pectoral muscle rate and limb muscle rate（ P 〉 0. 05）. Compared to control group,the contents of dry matter,fat,crude protein,saturated fatty acid and unsaturated fatty acid of Wanxi white geese in experimental groups decreased significantly（ P 〈 0. 05）,and the content of total amino acids also decreased slightly. The inosinic acid content in muscle of Wanxi white goose in groups Ⅱ and Ⅳ were slightly higher than that in control group. The thiamine content of Wanxi white goose in group Ⅳ was 52. 00%higher than that in control group（ P 〈 0. 05）. These results preliminarily showed that adding appropriate amount of mulberry leaf powder in diet could significantly improve the slaughter performance of Wanxi white goose,and improve the flavor of meat. But high amount of mulberry leaf powder should be avoided to ensure the palatability of diet.
基金
Supported by Seed Engineering Project of Anhui Academy of Agricultural Sciences(15D0605)
Youth Innovation Fund Project of Anhui Academy of Agricultural Sciences(15130634)
Special Fund for Agro-scientific Research in the Public Interest(201403049)
Special Fund of China Agricultural Industry Research System(CARS-22-SYZ09)
