The chromium improved the growth performance and carcass characteristics in broilers. 补铬改善了肉仔鸡的生长性能与胴体品质。
The study showed that growth performance was comparable among the three strains, and the heterosis from Boer goats was not observed. 说明在湘西当地饲养水平下,三品种山羊羔羊的生长性能相近,波尔山羊的杂交优势不显著。