How to improve the fattening effect of meat donkeys

Finishing is the use of advanced technology, scientific methods for feeding and management of meat donkeys, with higher meat production in shorter time and with less feed and lower cost. To improve the speed of fattening donkeys, feed utilization, and carcass quality, the following aspects must be addressed.

First, choose a large size, chest width of the donkey species, to take the appropriate fattening measures in order to obtain a satisfactory fattening effect. Large donkeys have Shaanxi Guanzhong donkeys, Shandong's Texas donkeys, Shanxi's Guangling donkeys and Jinnan donkeys, medium-sized donkeys have Shaanxi Jiami donkeys, Henan's Biyang donkeys, Huaiyang donkeys, Gansu’s Qingyang donkeys. Small donkeys have donkeys in Xinjiang, donkeys in North China, and donkeys in the southwest of Sichuan and Yunnan.

Second, choose the best finishing age 1.5-2.5 years old. The experts determined that legumes were fattened for 60 days. The 1.5-year-old donkey had an average daily gain of 633 grams. The 4-year-old donkey had an average daily gain of 377 grams, while the 12-15-year-old donkey had an average daily gain of 127 grams. The 0.5-year-old donkey cub, although the fastest growing and developing, produces less meat and has low feed utilization.

Third, the appropriate ambient temperature. For the donkey, a suitable ambient temperature is 16-24°C. The appropriate temperature can increase the food intake of the meat donkey, get the maximum daily weight gain, and the donkey is more fat. In addition, the donkey's birth weight, weaning weight, growth and development, survival rate, and carcass quality of autumn donkeys are far less than those of spring donkeys. Therefore, donkeys are not advocated with autumn donkeys.

Fourth, improve nutrition levels. In fattening, it is necessary to appropriately increase the concentrates containing more energy such as corn, sorghum, and wheat bran in order to obtain high daily gain and quality meat quality. It should be noted that when the donkey is being bred, especially in the early stage of fattening or fattening, the donkey's diet should be given enough feed such as beans, cakes, alfalfa and other protein content. Additives that promote animal health, promote growth, and increase feed conversion may also be used, but they should be stopped at the end of finishing or before slaughter.

Fifth, use of heterosis. In the production of meat donkeys, binary or ternary crosses can be adopted (that is, the introduction of one or two fine male asses hybrids with the local female donkey). The hybrid offspring produced can obtain heterosis with a productivity of 15%-20%. ) To increase the growth rate of hybrids, feed utilization and carcass quality, and to improve the production potential of meat donkeys in conjunction with the appropriate feeding conditions.

6. Slaughter should be slaughtered in a timely manner so as to maximize the production efficiency and increase the turnover of donkeys. In the normal finishing period, the feed intake of meat donkeys decreases with the weight gain during the finishing period, such as a drop of 1/3 or less of the normal feed intake; the daily feed intake is calculated based on the live weight (based on dry matter). Decline to 0.9%-1.1% or less of body weight, at which point the best fattening period has been reached. From the perspective of public opinion, to achieve a level of lyricism (ribs, spine and lumbar vertebrae? M suddenly does not appear, waist and arm round, full body muscles, leg muscles) can stop fattening, timely slaughter.

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