The establishment of agricultural products quality and safety cooperation mechanism and the research demonstration center in the Asia-Pacific reg coordinating each other, is not only of great ening cooperation with co...The establishment of agricultural products quality and safety cooperation mechanism and the research demonstration center in the Asia-Pacific reg coordinating each other, is not only of great ening cooperation with countries in Asia-Pacific region and for agricultural production safety of those countries in Asia- Pacific region, but also very necessary for our country to build a responsible image in the quality and safety of agricultural products, protection of the benefit of agriculture-related enterprises, increasing exports, ensuring imported food safety and China＇s national food security, as Well as nice exploration of establishing the global agricultural＇ products quality and safety cooperation center.展开更多
The aim of this study was to evaluate the use of melengestrol acetate （MGA） as a strategy to improve the production efficiency in ewes of rural areas in Mexico. Twenty ewes of breeds （Dorper and Dorper with Pelibue...The aim of this study was to evaluate the use of melengestrol acetate （MGA） as a strategy to improve the production efficiency in ewes of rural areas in Mexico. Twenty ewes of breeds （Dorper and Dorper with Pelibuey） non-pregnant and with ovarica activity were used. The treatment consisted of the administration of 0.22 mg MGA/ewe/d for 17 d. The MGA efficiency was measured once the treatment finalized, and the producer was responsible for the registration of the estrus presentation and prolificacy rate. 95% of the sheep presented estrus in a period of 14 d after stopping treatment. The prolificacy percentage was of 1.2 lambs born by ewe during a period of six months （including treatment and period of gestation）. In conclusion, the use of MGA represents an alternative to improve the efficiency of sheep production in rural areas in Mexico, since it can increase the number of lambs by 30% in a period of 12 months.展开更多
文摘The establishment of agricultural products quality and safety cooperation mechanism and the research demonstration center in the Asia-Pacific reg coordinating each other, is not only of great ening cooperation with countries in Asia-Pacific region and for agricultural production safety of those countries in Asia- Pacific region, but also very necessary for our country to build a responsible image in the quality and safety of agricultural products, protection of the benefit of agriculture-related enterprises, increasing exports, ensuring imported food safety and China＇s national food security, as Well as nice exploration of establishing the global agricultural＇ products quality and safety cooperation center.
文摘The aim of this study was to evaluate the use of melengestrol acetate （MGA） as a strategy to improve the production efficiency in ewes of rural areas in Mexico. Twenty ewes of breeds （Dorper and Dorper with Pelibuey） non-pregnant and with ovarica activity were used. The treatment consisted of the administration of 0.22 mg MGA/ewe/d for 17 d. The MGA efficiency was measured once the treatment finalized, and the producer was responsible for the registration of the estrus presentation and prolificacy rate. 95% of the sheep presented estrus in a period of 14 d after stopping treatment. The prolificacy percentage was of 1.2 lambs born by ewe during a period of six months （including treatment and period of gestation）. In conclusion, the use of MGA represents an alternative to improve the efficiency of sheep production in rural areas in Mexico, since it can increase the number of lambs by 30% in a period of 12 months.
