Holstein cows were fed grazing in the middle to late lactation period. The control group was fed with 7 kg of silage grass. The experimental group was fed with 3 kg silage + 4 kg fresh apple pomace and mixed silage 3 kg + fresh apple pomace 3 kg + 1 kg protein supplement. material. Feeding with apple dregs and protein supplements, the milk yields of the two treatments increased by 16.53% and 21.49% respectively compared with the control group; milk protein production increased by 25.58% and 32.56%, respectively; milk fat production increased by 20.69% and 32.76%. It indicated that fresh pomace could be used to feed lactating cattle instead of part of silage, which could increase milk production and improve milk quality. The fresh apple pomace and corn stalk were mixed in a ratio of 1:3. The feed was used to feed lactating cows. The daily milk output was 18.5 kg. The milk yield was 8.8% higher than that of the corn silage group, and the milk bloat rate was increased by 2.5%. The feed ratio was: 2.41:1, 2.17:1, indicating that fresh fruit pomace and corn stalks were more effective in feeding cows than corn silage; and the use of apple slag silage instead of 40% of silage corn to feed Holstein cows could also improve Milk production 8.8%. Apple clams that have been subjected to beneficial microbial fermentation and nutritional fortification are used as test products. In trial group 1, dairy cows were fed with apple pupa instead of 10% concentrate. In the experimental group 2, 1.5 kg of apple pomace was used instead of 1.5 kg of concentrate (1 kg of wheat bran and 10 0.5 kg of bean cake) to feed the cows. The control group was fed conventional formula feed. Feeding. The results showed that the average daily milk production of the experimental group 1 and the experimental group 2 was 1.66 kg and 0.34 kg higher than that of the control group, and the milk increase effect was significant, and the milk composition did not change significantly. The number of somatic cells in the two experimental groups was significantly lower than that of the control group. It shows that the fermented and nutritionally enhanced apple pods have the effect of increasing milk production and improving the health of dairy cows. 12- to 24-month-old Hereford beef cattle, based on hay, wheat straw, and rapeseed meal, and fed with different amounts of apple pomace, 10%, 20%, 30%, and 40% increased by 4 different treatments The weight difference was not significant, but the final total weight gain was best at 20%, which was 108.2, 123.1, 116.8, and 114.5kg. There was no significant difference in feed conversion efficiency and carcass characteristics from different treatments, but with the apple pomace in the diet. As the amount increases, fat deposition decreases. It was concluded that if there are other nitrogen sources, especially available proteins, apple dregs can be used in beef cattle diets up to 30% without affecting their production and carcass characteristics. A 72-day-old Merino weaned lamb, based on alfalfa, hay, corn, sunflower, fish meal, wheat, sugar, mineral-based diets, plus 10%, 20%, 30%, and 40%, respectively For apple pomace, the CP of the diet was 17.5% and the ME was 10.4 MJ/kg. The dry matter intakes of the four treatments were basically the same, namely: 1.44, 1.47, 1.40, and 1.45 kg/d. The daily weight gains were: 357, 409, 377 and 378g, when the amount of apple dregs added in the diet was greater than 10%, the feed utilization rate had an increasing trend, but there was no significant change in the animal body. The trial used apple pomace silage as a partial replacement for the concentrates of adult ewes and lambs. The results indicated that some of the concentrates in the ewes and lamb diets could be replaced by silage apple pomace, but the replacement must be based on NE in the diet. The addition of apple pomace in the diet did not affect lamb body weight gain. The pigs used the growing pigs as the test object. The first test used apple dregs and the remaining noodles were mixed and mixed into the normal feed. There was no significant difference in the growth and meat quality between the control group and the test group, but the test group greatly reduced the feeding cost. In trial two, apple slag, remaining noodles, and a certain amount of wheat bran were used to completely replace the feed. The growth of pigs was normal, but the growth was 0.5-1.0 months later than that of the control group. This extended the feeding period and consumed more material, although this method was used to grow pigs. The performance in the early stage was not very good, but the cost of this component and the total cost were lower than the control group. Chickens use Saccharomyces cerevisiae, Candida utilis, Schizosaccharomyces pombe. Bacterial spheres produced by S. sphaeroides and G. grandiflora for solid-state fermentation and mixed with a standard broiler diet 1:1, the feeding effect is equivalent to the standard diet, daily growth of broilers within 8 weeks is normal . The chicken had neither death nor liver or kidney lesions. Serum biochemical indicators, such as serum urea nitrogen levels, sugar, total protein, ALT, AST, and AKP enzymes, were within normal limits, indicating that apple dregs can be used as a basic component of broiler feed. Conclusion Apple dregs has been partially applied in livestock and poultry husbandry, mainly in apple production areas. In addition to these methods of fresh feed, silage, and apple dregs, the use of beneficial bacteria for the production of biological feed and feed protein has become a solution to apples. The important way for the slag to leave the road is of great importance to alleviating the lack of protein feed resources in China, improving the benefits of fruit planting and processing industries, and reducing environmental pollution. Taking a look at the current use of apple dregs, except for silage and fermentation, which can increase the performance of ordinary livestock and poultry, the other major is to reduce feed costs. Therefore, to make apple dregs more widely used in livestock and poultry husbandry, it is necessary to further study the mechanism, the best use method and the optimal use amount of the apple pomace in different livestock and poultry, and extend it to the special aquaculture industry. Series problems. The use of apple dregs in livestock and poultry has no advantage over its substitutes. Sometimes it is even not enough, but it cannot be wasted as a resource. This is also consistent with the requirements of sustainable agricultural development. Therefore, the application of apple dregs as a feed resource Should mention the schedule.
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