Enzymatic preparation regards a kind of new-style and efficient feed as additive, can raise cultivate birds productivity to be able to be mixed reduce fecal pollution, also be open up at the same time new feed natural resources, reduce feed to produced cost to offer efficient way. The article applies a technology mediumly to make one introduction in feed recipe with respect to feed enzymatic preparation.
1. Corn beans dregses of rice model the technology with the enzymatic application in ration
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Corn beans dregses of rice model add in ration enzymatic the energy that can raise feed, protein utilization rate. Study a proof in great quantities, feed recipe balances a principle according to ideal and amino acid, usable beans dregses of rice wait for plant sex protein to replace animal sex protein, hold the manufacturing property with cultivate normal birds. Ancient stemmed cup or bowl of Dan Zaiyu rice dregses of rice model the existence in ration combats nutrient factor problem, basically be blame starch sticks polysaccharide among them (NSP) , albumen is enzymatic restrain protein of acid of agglutinin of factor, plant, establish, pectic, antigen to wait, these fighting digest utilization rate that what nutrient factor reduced feed on certain level. Study a proof, compound enzymatic preparation is added to be able to raise corn beans to dregs of rice in feed model the digestive utilization rate of ration. Siversides (1999) reported what Brazilian emperor Paul and Wei Kesa university make a test, use ileum to digest rate mensuration, dregs of rice in corn beans model feed adds enzymatic preparation, the metabolizable energy that raised feed as a result is worth (P<0.05) lead with the assimilation of crude protein (ｐ <0.05) .
After compound enzymatic preparation is being added in fryer ration, the value increases the metabolizable energy in experiment of holy Paul university 2.5% , protein digestive rate rises 3.6% ; Experiment of university of dimension gram Sa is both rise significantly respectively 2.2% with 2.2% , difference is notable, corn is in commonly in the dosage in feed 50%~70% , of the digestive utilization rate of corn and feed change rate is direct and relevant. Noy (1994) to 4~21 the fryer of day age determined digestive rate of ileum of jade rice starch, it is 82%~89% only, far under 95% accepted, ammoniac assimilation is in small intestine also not complete, digestive rate is 4 day age 78% , it is when 21 day age 92% , and the digestive rate of the nutrient in small intestine rising significantly after adding the enzymatic preparation such as amylase. Summers (2001) report, dregs of rice in corn beans model compound enzymatic preparation is added in ration (amylase, wood gets together carbohydrase and albumen are enzymatic) hind, energy utilization rate can raise 2%~5% . Because this adds enzymatic preparation to be able to raise nutrient to digest absorptivity mediumly in small intestine, raised corn beans to dregs of rice at the same time model the apparent metabolizable energy in ration (AME) with protein utilization rate, improve the manufacturing performance of cultivate birds thereby.
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