1. Energy Benefit

Researches show that Yiduozyme β-mannanase has obvious energy benefit. When added into livestock or poultry diets, it releases energy of about 50-100 kcal/kg. Since β-mannan has strong anti-nutrition effect which can reduce the secretion of insulin to prevent glucose absorption and utilization thus leads to the low rate of feed utilization, β-mannanase is necessary to degrade β-mannan in feed and at the mean time, eliminate its anti-nutrition effect, in particular, eliminate the negative effects caused by β-mannan on body’s insulin secretion thus improve feed utilization. In conclusion, there exists obvious energy benefit due to the addition of β-mannanase into feed.

 

2. The Applicational Advantages of β-Mannanase in Broiler and Their Breeder

1.1 It requires high energy level in broiler diet. A certain amount of fat have to be added into its feed to meet its energy needs while it costs too high to add vegetable oil; however, if animal fat is chosen, more problems will emerge: the oil quality, the strict restriction of animal fat addition in and out of China. β-mannanase, which has great energy benefit and, when added into feed, can reduce a certain amount of oil thus it has good economic benefit, too.

1.2 The weight equality of broiler improved greatly after the use of β-mannanase, which indicates that it plays an obvious role to the same marketing time of the broiler and production of the same specification of chicken meat.

1.3 It can reduce the use of raw animal materials such as fish meal, meat and bone meal and animal lipid.

 

3. The Applicational Advantages of β-Mannanase in Pig Feed

β-mannan affects pigs’ performance mainly at their young age. When the piglets start weaning and begin to eat starter diet, diarrhea is the most common-seen disease. There’re mainly two reasons: they are not maturely developed in their alimentary tract and they are lack of the digestive enzyme and, the anti-nutrition effects of anti-nutrition factors in the soybean meal (mainly β-mannan) will cause trophism diarrhea. β-mannanase, as it can degrade β-mannan, can reduce the diarrhea incidence of the piglets. On the other hand, the degradation product, mannan-oligosaccharide, can improve the intestinal microorganism bacteria line and the integrity of the intestinal mucosa. Furthermore, the addition of β-mannanase in pig diets can also reduce the use of oil thus save cost.

In general, adding β-mannanase in pig diet will on one hand, make full use of the energy benefit, and reduce oil consumption or offset the energy deficiency, so it can save cost; on the other hand, the use of enzyme preparations can increase the digestion and absorption rate and improve animal growth. From the two reasons mentioned above, it is obvious that β-mannanase improves economic benefit for the breeding industry. In addition to this, reducing the use of animal protein and animal fat plays a significant role in cutting down disease transmission and in the process of green food production.