A large number of chowder (cotton seed meal, rapeseed meal, sunflower seed meal, sesame cake and peanut cake) are often used in feed. However, since these raw materials themselves contain more anti-nutritional factors or components harmful to the growth of livestock and poultry, the amount in the feed is limited, and the addition of the enzyme preparation can improve the situation. Stanley et al. (1996) tested the effects of enzyme preparations on different cottonseed levels in broiler diets. The addition of 7.5%, 15%, and 30% of the cottonseed meal diets significantly improved the feed conversion rate of broilers. Pack et al. (1996) reported that xylanase was added to broiler sorghum (65%), soybean meal or sorghum (62%), soybean meal, rapeseed meal diets (5% of rapeseed meal, 10% later). The results showed that the addition of enzyme preparations in the diet increased the weight gain and feed conversion rate of the high-grain diet broilers in the whole period, and the high-grade soybean meal diet group reached a significant level after enzyme addition (p<0.05). It indicates that the enzyme preparation can be applied not only to the corn-soybean-type diet, but also to the high-yellow seed meal diet (the amount of rapeseed meal can reach 10%), which does not affect the animal performance.
Shelled sunflower seeds contain about 38% crude protein and 13% crude fiber, high methionine content and low lysine and threonine content. Therefore, partial replacement of soybean meal with sunflower seed meal in poultry diet can improve amino acid in feed. balance. However, since the sunflower seed meal contains more anti-nutritional factors such as xylan and pectin, the amino acid digestibility and energy are lower. Schang et al. (1998) conducted a test of sunflower seed meal instead of soybean meal in laying hen diets, and set a 7% increase in metabolic energy and amino acids in the enzyme-added corn sunflower seed meal. The results showed that the difference between the two groups was not significant, which proved that the addition of enzyme preparation can improve the economical efficiency of protein, energy and amino acid utilization (7%) of Aphis gossypii. See Table 8. The addition of enzyme preparations improves the digestibility of nutrients in sunflower seed meal and provides a more economical alternative to the preparation of laying hen diets.
In summary, in order to improve feed efficiency and reduce the adverse effects of anti-nutritional factors in feed on livestock production performance, in addition to adopting new technology in feed processing, in the design of feed formula, synthetic amino acids can be added through raw material screening. And feed enzyme preparations to improve feed utilization and livestock performance. The selection of enzyme preparations should be based on the type of feed ingredients (ie, the type and quantity of anti-nutritional factors), the type of livestock and poultry, and the growth stage. Considering the increase in feed ratio, protein and amino acid after enzyme addition, formula optimization is carried out. When designing the enzyme-added corn-soybean-type formula, the enzyme can be directly added to improve the quality of the feed, and the energy can be reduced by 2% to 5% based on the original formula, and the essential amino acid can be reduced by 5% to 7%, and the formula can be re-optimized. For the wheat barley soybean meal type diet, the enzyme was adjusted to an energy of 6% to 10%, and the amino acid digestibility was 10%. Based on this, the lower cost feed formulation was calculated. The enzyme preparation can be used to add cottonseed meal, rapeseed meal, sunflower seed meal and the like to the feed to replace the soybean meal, which opens up new prospects for making full use of unconventional raw materials, reducing feed cost and improving economic benefits.
Oushida is second quality machine,but the quality also similar with longneng quality.only different is the Motor material. Longneng is 45# baosteel cold-rolled.Oushida is 60# cold-rolled baosteel.608 bearing use C&U.another one is scnc, another is CHL.
We have self machinery room to control the aluminium allowable error.We also removal the dust that every process machining to control no more tolerance on the spare.
There is testing room to control the quality stable.
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