[ Objective] To investigate the effects of different levels of metabolizable energy and crude protein on egg laying performance and hatch- ing efficiency in Magang geese. [Method] The healthy Magang geese at 2 years o...[ Objective] To investigate the effects of different levels of metabolizable energy and crude protein on egg laying performance and hatch- ing efficiency in Magang geese. [Method] The healthy Magang geese at 2 years old were randomly assigned into four groups, group Ⅰ, group Ⅱ, group Ⅲ and control group. They were fed with diets at different levels of metabolizable energy and crude protein, and then their eggs were collect- ed and hatched. During the test, their health was observed, and the egg weight, egg yield and hatching rate were recorded. [ Result] The average egg laying rates and average egg weight were significantly higher in the group Ⅰ, group Ⅱ and group Ⅲ than in the control group. The hatchable egg rates and egg fertilization rates of the group Ⅰ, group Ⅱ and group Ⅲ were also increased, and significance was found between the group Ⅲ and the other group （P 〈 0.05）. The feed costs of the three test groups were lower than that of the control group, and the feed cost was higher in the group Ⅲ than that in the group Ⅰ and Ⅱ. [ Conclusion] The levels of metabolizable energy and crude protein in diet have significant effects on laying performance and hatching efficiency in Magang geese.展开更多
Magang,situated in MaanshanPrefecture,near the lower reaches of theYangtze River and in eastern Anhui Province,is one of China’s super-large integrated ironand steel enterprises,and also Anhui’s largestindustrial en...Magang,situated in MaanshanPrefecture,near the lower reaches of theYangtze River and in eastern Anhui Province,is one of China’s super-large integrated ironand steel enterprises,and also Anhui’s largestindustrial enterprise.According to its netassets,it ranks the 16th of the country,and27th by its sales amount. Magang was formally established in1958.In 1992,it was approved as one ofChina’s first nine stock system normalizedexperiment enterprises,and now has becomeChina’s listing company with largest scaleand amount of capital issued inside andoutside China.Stock system makes it展开更多
Maanshan Magang Julong Co.Ltd.isa special enterprise assigned by the Ministryof Metallurgical Industry for making castiron tubes and accessories,assigned by theMinistry of Construction for makingrevolving bearing seri...Maanshan Magang Julong Co.Ltd.isa special enterprise assigned by the Ministryof Metallurgical Industry for making castiron tubes and accessories,assigned by theMinistry of Construction for makingrevolving bearing series products. The company is located betweenNanjing and Wuhu economic developmentzones,on the side of the State Highway 205,overlooking the Yangtze River,with展开更多
基金funded by the Education Department Production and Research Program of Guangdong Province ( 2009B090300088)
文摘[ Objective] To investigate the effects of different levels of metabolizable energy and crude protein on egg laying performance and hatch- ing efficiency in Magang geese. [Method] The healthy Magang geese at 2 years old were randomly assigned into four groups, group Ⅰ, group Ⅱ, group Ⅲ and control group. They were fed with diets at different levels of metabolizable energy and crude protein, and then their eggs were collect- ed and hatched. During the test, their health was observed, and the egg weight, egg yield and hatching rate were recorded. [ Result] The average egg laying rates and average egg weight were significantly higher in the group Ⅰ, group Ⅱ and group Ⅲ than in the control group. The hatchable egg rates and egg fertilization rates of the group Ⅰ, group Ⅱ and group Ⅲ were also increased, and significance was found between the group Ⅲ and the other group （P 〈 0.05）. The feed costs of the three test groups were lower than that of the control group, and the feed cost was higher in the group Ⅲ than that in the group Ⅰ and Ⅱ. [ Conclusion] The levels of metabolizable energy and crude protein in diet have significant effects on laying performance and hatching efficiency in Magang geese.
文摘Magang,situated in MaanshanPrefecture,near the lower reaches of theYangtze River and in eastern Anhui Province,is one of China’s super-large integrated ironand steel enterprises,and also Anhui’s largestindustrial enterprise.According to its netassets,it ranks the 16th of the country,and27th by its sales amount. Magang was formally established in1958.In 1992,it was approved as one ofChina’s first nine stock system normalizedexperiment enterprises,and now has becomeChina’s listing company with largest scaleand amount of capital issued inside andoutside China.Stock system makes it
文摘Maanshan Magang Julong Co.Ltd.isa special enterprise assigned by the Ministryof Metallurgical Industry for making castiron tubes and accessories,assigned by theMinistry of Construction for makingrevolving bearing series products. The company is located betweenNanjing and Wuhu economic developmentzones,on the side of the State Highway 205,overlooking the Yangtze River,with
