Analysis Of Beef Cattle Population Improvement And Breeding Dfficiency Promotion In Mountains Southern Ningxia

Based on the local farmers the production of beef cattle on the survey, according to the existing forage species design fattening ration of Guyuan yellow cattle, calves of Guyuan yellow cattle, Limousin and F1hybrids, Simmental beef cattle and calves of Guyuan yellow cattle F1hybrids calves weight and daily gain, body length of body height chest circumference and economic benefit analysis.According to observation, Simmental crossbred cattle and Limousin crossbred cattle body shape and appearance features, obvious changes compared with Guyuan yellow cattle, the basic display the paternal characteristic, meat characteristics. Simmental crossbred cattle top is white, red and white majority of hair, a red, muscle fullness, developed after the flooding, the rapid growth and development. Limousin crossbred cattle is red, hair color change is not big, but the body is obviously higher than that of Guyuan yellow cattle and Simmental crossbred cattle, and muscle fullness.With the growth of age, Simmental crossbred cattle and Limousin crossbred cattle bone development speed, growth is obviously better than that of Guyuan yellow cattle, showing good meat type. Simmental crossbred cattle and Limousin crossbred cattle, show good performance of the growth rate, weight gain and weight gain potential range is bigger, especially the Limousin crossbred cattle showed obvious heterosis.Under the same feeding and management conditions, no significant difference of high birth of Guyuan yellow cattle with Simmental crossbred cattle, Limousin crossbred cattle (P>0.05), Simmental crossbred cattle, Limousin crossbred cattle in June December, weight, weight gain was significantly higher in Guyuan yellow cattle (P<0.05), Simmental crossbred cattle was born in June and December, the age old body is slightly higher than the Limousin crossbred cattle, the difference was not significant (P>0.05), Simmental crossbred cattle birth body length is slightly higher than that of Limousin crossbred cattle, the difference was not significant (P>0.05), Limousin crossbred cattle in June December at the age of age and body length is slightly higher than that of Simmental crossbred cattle, the difference was not significant (P>0.05).In this experiment, experimental cattle feeding and management conditions, the cost of feeding the same, economic benefits in accordance with the weight gain of beef cattle to estimate. In December the age, the average weight of Guyuan yellow cattle was220.65kg, the average weight of Simmental crossbred cattle was251.57kg, average weight of Limousin crossbred cattle278.78kg. According to the current market shelf life heavy price20yuan/kg calculation, Guyuan cattle average price of4413yuan/head, Simmental crossbred cattle average price of5031.40yuan/head, Limousin crossbred cattle average price of5575.60yuan/head. Breeding Limousin and Simmental crossbred cattle crossbred cattle breeding cattle more profit than Guyuan1162.60yuan/head and618.40yuan per head.Analysis of data shows, Limousin crossbred cattle, Simmental crossbred cattle has the advantages of fast growth, large body, healthy body, can shorten the production cycle, but also has the feed reward higher (lower ratio of feed and meat). In better feeding conditions, crossbreeding can fully reflect the level of beef cattle production, improvement of Chinese local cattle as beef cattle’s body.Limousin cattle, Simmental as male parent, Guyuan cattle as female parent to hybrid, can exhibit significant heterosis, and increased with age, becoming obvious heterosis. Use of Limousin and Simmental cattle improvement in Guyuan yellow cattle population, can effectively improve the growth performance of Guyuan cattle, improve breeding efficiency, has better promotion value.