Application of compound enzyme in livestock and poultry feed

Application of compound enzyme in chicken feed

Song Lianxi et al. added 0.1% compound enzyme preparation to the 41-week-old Hailan brown commercial hens diet. After 28 days, the results showed that the egg production rate could be increased by 6.12% (P<0.05). The egg-to-egg ratio was reduced by 11.69% (P<0.05). Zhang Qiang et al. added different proportions of compound enzyme preparations to the feed of Hailan commercial laying hens. The results showed that the production level of laying hens could be improved. The number of eggs produced by adding 0.2% of the compound enzyme preparation group increased by 3.92% (P

Application of compound enzyme in duck feed

Adding special enzyme preparations for meat ducks in the cherry valley meat duck diet can significantly improve the quality of meat ducks (P<0.01), and can effectively promote the growth of meat ducks. The daily increase in quality at 45 days is 7.44% (P <0.05), greatly promoted feed conversion efficiency, reduced feed costs, and greatly increased economic benefits. At the same time, when using the compound enzyme preparation, reducing the nutritional level of the cherry valley meat duck diet by 12% does not have a significant effect on the growth performance of the meat duck. Feeding 0.05% neutral protease and 0.05% phytase to feed 26-week-old French black muscovy duck for 56 days, can significantly increase the egg production and fertilization rate, compared with the control group, respectively 11.64% (P<0.01) and 10.67% (P<0.01). It is indicated that the addition of enzyme preparations to the muscovy duck diet can significantly improve the production performance and improve the feed intake, feed-to-egg ratio and egg quality of the muscovy duck.

Application of compound enzyme in pig feed

A large number of test results show that feed nutrient utilization rate is increased: energy 6% to 8%, protein, amino acid 7% to 13%; piglet weight gain increased by 8% to 15%. Adding 0.1% complex enzyme preparation to the diet of weaned piglets can reduce the fishmeal dosage by 2%, but has no significant effect on the growth performance and skin color of piglets, and has a tendency to improve skin redness and brightness. The average daily quality of weaned piglets can be increased by 6% (P<0.05); feed remuneration increased by 5.6% (P<0.05), and economic benefits increased by 4.4%. Adding enzyme preparation can also promote the growth of 19 kg of growing pigs to some extent and improve feed utilization. Compared with the control group, the average daily mass of the compound enzyme preparation group increased by 9.1% (P>0.05), and the feed-to-weight ratio increased by 7% (P>0.05). The addition of a complex enzyme preparation to different types of pig diets has also achieved good results.

Application of compound enzymes in cattle and sheep feed.

Liu Yunbo et al. (2002) showed that adding 0.2% of cow's compound enzymes with hemicellulase, amylase, protease and xylanase as the main diet, the average milk fat percentage of the experimental group increased by 3.28% compared with the control group. . In Wu Jianshe's report, the addition of enzyme preparations increased the milk production of dairy cows by 7.1% to 11.8%. The enzyme added in this experiment increased the milk production of cows by 5.9% to 9.1%. Zhang Meili and Guo Rui showed that the addition of compound enzyme preparations to the basal diets of 0.1%, 0.2%, and 0.3% all significantly increased the milk yield of dairy cows. The daily milk yield increased by 1.8 kg, 2.8 kg, and 2.4 kg, respectively. The yield increase was 5.9%, 9.1%, and 7.7%, respectively. There was no significant difference in milk fat percentage between the experimental group and the control group, indicating that the addition of the complex enzyme preparation had little effect on the milk fat percentage. The addition of 0.2% complex enzyme preparation in the diet can affect the rumen fluid VFA of sheep and reduce the rumen PH. During the whole period of the experiment, the concentration of NH3 increased, and the rumen was an important source of NH3 bacterial protein. Increasing the concentration of NH3 can increase the amount of bacterial protein synthesis, thereby promoting the growth of animals.

Application of compound enzymes in fish feed.

About 155 g of squid were fed for 75 days with bait containing complex enzyme preparations of 0, 300, 500, 700, 900 and 1100 g/ton, respectively. The results showed that the addition of enzyme preparations to the carp bait had a significant and significant effect on the mass gain (P<0.01) and the feed coefficient (P<0.05), while the amount of feed, culture period and transport survival rate. No effect. The compound enzyme is suitably added in an amount of 550 to 630 g/ton.

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