绿头野鸭
- 网络mallard;Anas platyrhynchos;Mallard duck;Wild mallard
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绿头野鸭与北京鸭杂交亲合过程的观察
Observation of affinity in the course of cross breeding between Mallard and Beijing duck
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绿头野鸭与荆江麻鸭杂交效果研究
The Effeet of Mallard Duck Crossed with Jingjiang Shelduck
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用8只绿头野鸭公鸭与50只天府肉鸭母鸭自然交配生产F1代,测定父母本和F1代的生长速度和9周龄屠体性状。
: Eight male wild mallards cross to 50 meat breed of Tianfu ducks by natural service to produce F1.Growth rate and meat performance of the two breeds and their F1 are determined in the study .
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北京鸭、大余麻鸭和绿头野鸭肉质的比较研究
A Comparative Study on the Meat Quality Of Peking Duck
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蛋氨酸螯合锌对绿头野鸭生产性能的影响
Effect of Zn-Met_2 Chelate on Production Performance of Anas platyrhynchos
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日粮蛋白质水平对育雏期绿头野鸭生长性能的影响
Effect of Dietary Protein Level on Growth Performance of Wild Anas Platyrhynchos
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天府肉鸭与绿头野鸭杂交改良试验
Crossing Experiment of Tianfu Ducks to Wild Mallards
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从饲料报酬的角度看,19.00%的蛋白质水平完全可以满足绿头野鸭育雏期(0~4周龄)的生长需要。
19.00 % of protein level met growth requirement of ducklings from the view of feed remuneration .
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利用主成分分析对以绿头野鸭为父本的不同杂交组合的屠宰性能进行了研究。
Principal component analysis was carried out to study the slaughtering performance of cross combinations using Anas platyrhynchos as male parent .
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试验研究蛋氨酸螯合锌对绿头野鸭生长性能及能量和蛋白质代谢的影响,探讨蛋氨酸螯合锌的最佳添加剂量。
Effect of feeding Zn-Met_2 chelate on Anas platyrhynchos production performance , energy and protein metabolism was studied , and the suitable dose that Zn-Met_2 chelate should be added was decided .