不同饲养密度下鸭品种的生长、胴体参数、生化和氧化应激指标及肉质特性。
Growth, carcass parameters, biochemical and oxidative stress indices, and meat traits of duck breeds under different stocking densities.
机构信息
Animal Wealth Development Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511 Egypt.
Department of Clinical Laboratory Sciences, Turabah University College, Taif University, Taif 21944, Saudi Arabia.
出版信息
Poult Sci. 2022 Sep;101(9):101992. doi: 10.1016/j.psj.2022.101992. Epub 2022 Jun 5.
This investigation was aimed to inspect if there is an influence of various stocking density on growth, carcass parameters, blood indices, and meat traits of Muscovy and Mallard ducks. One hundred twenty-six 1-day-old of each Muscovy and Mallard ducks were randomly allocated into three experimental groups with different stocking density. Group one (SD) was 5 ducks/m, while group 2 (SD) was 7 ducks/m and group 3 (SD) was 9 ducks/m. The growth, carcass parameters, meat quality, blood indices were calculated. Body weight of SD was 18 and 4.5% heavier than SD, while, it was 29.5 and 12% heavier than SD of Muscovy and Mallard duck breeds, respectively. SD possessed the highest levels of, H/L, ALT, AST, LDL, VLDL, and MDA with the lowest levels of lymphocyte, SOD,GSH, GPX, C3, total antioxidant capacity and IGG of both ducks' breeds. The carcass weight decreased by 40 and 15% from SD to SD in Muscovy and mallard ducks, respectively. The dressing % was highest at SD (84 and 83%) when compared with SD(71and80%) of Muscovy and Mallard ducks, respectively. Cooking loss was 20 and 16% greater in group three when compared with group one in Muscovy and Mallard ducks, respectively. In conclusion ducks raised in low SD possessed the best performance with better welfare.
本研究旨在探讨不同饲养密度对肉鸭和野鸭生长性能、屠体参数、血液指标和肉质特性的影响。将 126 只 1 日龄的肉鸭和野鸭随机分为三组，每组饲养密度不同。第 1 组（SD）为 5 只/m²，第 2 组（SD）为 7 只/m²，第 3 组（SD）为 9 只/m²。记录生长性能、屠体参数、肉质、血液指标。与 SD 相比，SD 的体重分别重 18%和 4.5%，而 SD 的体重分别重 29.5%和 12%。SD 组的 H/L、ALT、AST、LDL、VLDL 和 MDA 水平最高，淋巴细胞、SOD、GSH、GPX、C3、总抗氧化能力和 IgG 水平最低。肉鸭和野鸭的屠体重量分别从 SD 下降到 SD，下降了 40%和 15%。与 SD 相比，SD 的屠宰率最高（84%和 83%），而肉鸭和野鸭的 SD 分别为 71%和 80%。与第 1 组相比，第 3 组的烹饪损失分别增加了 20%和 16%。综上所述，低密度饲养的鸭子表现最好，福利更好。
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