In meat donkey breeding, if meat donkeys are overweight, feed utilization is low, and carcass quality is poor, it will affect the breeding efficiency of meat donkeys. Therefore, we must pay attention to several major reasons that affect meat donkey weight gain, and make timely adjustments. :
(1) Effects of varieties Different varieties of donkeys have different growth speed, fattening performance, carcass quality, and feed utilization efficiency under the same feeding conditions. Therefore, in order to improve the fattening effect, it is necessary to first solve the growth of donkeys of various breeds. Development and finishing performance, select a large donkey breed with a large body size and wide chest, and adopt appropriate finishing measures to obtain satisfactory results.
(2) Effects of different body weights and ages Donkeys of different ages and weights have different nutritional requirements during finishing, and the content and speed of weight gain are also different. If the young donkey grows vigorously, the content of weight gain is mainly bones and muscles. At this time, there is more demand for protein, and due to its undigested digestive function, it requires a higher quality of feed; adult donkey breeding mainly Increase fat, the higher the energy level of the feed.
As the ages increase, feed consumption for donkey units increases and feed use efficiency decreases. The timely slaughter of each donkey should be mastered in production to reduce production costs.
(3) Influence of temperature The appropriate temperature can obtain high daily gain and high feed utilization. Too high or too low temperatures are not conducive to growth and will reduce body fat deposition. Although low temperatures increase the donkey's intake, it consumes a lot of heat. High temperatures can reduce the feed intake of donkeys, and they also reduce body fat. Especially in the late fattening period, the donkey's fat and body fat, and then encounter high temperatures, will make the donkey stop eating, and even the incidence.
The suitable ambient temperature for the donkey is 16°C to 24°C.
(4) The influence of feed nutrition The influence of feed nutrition is mainly the influence of energy and protein. The organic matter in the feed is the material basis of its energy value. The content of organic matter and its quality determine the level of energy value of feed, and the effect of crude fiber and crude fat is even more obvious. In general, the more crude fiber in the feed, the lower the energy. Therefore, it is necessary to properly increase the concentrates containing more energy such as corn, sorghum and bran in order to obtain high daily weight gain and high quality meat products. When the feed protein supply is insufficient, the donkey's digestive function declines, growth slows, weight gain slows, and disease resistance weakens, which can seriously affect the health and fattening of meat donkeys. Therefore, when fattening a donkey, especially in the early stage of fattening or fattening, the donkey's diet should be given enough protein, such as beans, cakes, and alfalfa.
Here, it is important to point out that some fat or growth-promoting additives have been added to the feed during the fattening process. Although these positive ions have a certain role in promoting the rapid growth of the donkey and the feed conversion rate, antibiotics, heavy metal compounds and certain If these hormone drugs are used improperly, the residual amount in the meat will exceed the allowable amount of food standards, affecting people's health. Therefore, the use of drug additives approved by the state must be stopped at the end of fattening or within a certain period before slaughter.
(5) Effects of crossbreeding Crossbreeding can show hybrid heterosis in terms of growth rate, feed utilization efficiency, and carcass quality. In the production of meat donkeys, a binary or three-way hybrid between two varieties or three varieties can be selected to match the corresponding rearing conditions in order to increase the production potential of meat donkeys.
We're Professional Supplier Extract Powder manufacturers and suppliers in China specialized in providing high-quality products at low price. We warmly welcome you to buy or wholesale bulk Supplier Extract Powder for sale here from our factory. For a free sample, contact us now.
Supplier Extract Powder,Supplier Extract ,Supplier Powder Manufacturer in China
Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com