Does enzyme additivehave have an effect on the growth of broiler chicken?

enzyme seisves are a kind of protein with biocatalysis ability extracted from animals, plants and microorganismsHigh efficiency, specificity, active under appropriate conditions (pH and temperature)8NQ
So does enzyme additives have an effect on the growth of broilers? Based on the "secondary regression universal rotational combination design" method to determine the optimal dose of enzyme preparation, the influence of enzyme preparation on the production performance of broiler is studied and its mechanism is discussed8NQ
The results showed that the broiler diet added the appropriate amount of compound enzyme, lipase, alpha-amylase and neutral protease, and the weight of broiler increased by 10.87 percent, 5.98 percent, 6.52 percent and 3.80 percent, respectively, and the feed utilization rate increased by 20.83 percent, 10.83 percent, 11.67 percent and 9.17 percent, respectivelyAdd compound enzymes, alpha-amylase and neutral protease survival rates increased by 6.26%, 2.68% and 3.58%, respectivelyAt the same time, the crude protein, crude fat, coarse fiber, coarse ash and energy metabolism rate were also measured, and the slaughter rate, semi-clean chamber rate, full net chamber rate, chest leg division ratio, blood glucose concentration, serum total protein and globulin content were also determinedThe effect of the compound enzyme is better than that of each single enzyme8NQ
We have adopted the method of "secondary regression universal rotation already design" to scientifically determine the "linear horizontal coding table", conduct accurate small group experiments, use computers for data processing, establish a multidimensional mathematical model, and screen out the optimal use of enzymes in broiler production8NQ
In order to further confirm the effect of enzyme preparation, the mechanism of action of enzyme preparation is discussed, and this experiment has been carried out, the results are reported as follows 8NQ
　　Materials and methods 8NQ test chicken selection AA broiler commodity on behalf of 600 young chicks, randomly divided into 5 groups, each group 120, each group set 3 repeats, each repeat 40 (female and male half) A, B, C, D test group added compound enzymes, lipase, alpha-amylase and neutral protease, E group did not add, for the control group The trial period is 49 days 8NQ
　　The measurement project and method 8NQ 1 Production performance determination (breeding test) were measured weekly by repeat group, and the weight, consumption and mortality were calculated 8NQ
　　2 The metabolic test collected each repeated group of fecal urine continuously for 5 days from the age of 7, and recorded the amount of food taken by the repeat group After weighing all the dung urine, take 10%, mix 5% with enzymes, 5% without acid, make air-dried samples at 70 degrees C, use conventional methods to determine dry substances, crude protein, coarse fat, coarse ash, nitrogen-free leaching, crude fiber and other content, calculate the metabolic rate of nutrients 8NQ
　　Slaughter test 8NQ 1 muscle samples take each chicken chest muscle, leg muscle sample each 20 grams, according to the conventional method of muscle dry matter, crude protein and coarse fat 8NQ
　　2 While the slaughter rate is measured in the proportion of carcasses, the proportion of neck, back, waist, chest, legs, wings, claws is measured, and the proportion of each part is calculated 8NQ
　　3 At the end of the slaughter rate determination feeding test, each group randomly took 6 chickens (female and male half), determined its live weight, butcher weight, half-clean weight, full net load weight, chest muscle weight, leg muscle weight, abdominal fat weight, sub-seispolith fat thickness, etc., calculated slaughter rate, half-clean chamber rate, chest muscle rate, leg muscle rate, abdominal fat rate, etc 8NQ
　　Enzymes are a kind of protein seisluded from animals, plants and microorganisms with biocatalysis capability High efficiency, specificity, active under appropriate conditions (pH and temperature) 8NQ
　　So does enzyme additives have an effect on the growth of broilers? Based on the "secondary regression universal rotational combination design" method to determine the optimal dose of enzyme preparation, the influence of enzyme preparation on the production performance of broiler is studied and its mechanism is discussed 8NQ
　　The results showed that the broiler diet added the appropriate amount of compound enzyme, lipase, alpha-amylase and neutral protease, and the weight of broiler increased by 10.87 percent, 5.98 percent, 6.52 percent and 3.80 percent, respectively, and the feed utilization rate increased by 20.83 percent, 10.83 percent, 11.67 percent and 9.17 percent, respectively Add compound enzymes, alpha-amylase and neutral protease survival rates increased by 6.26%, 2.68% and 3.58%, respectively At the same time, the crude protein, crude fat, coarse fiber, coarse ash and energy metabolism rate were also measured, and the slaughter rate, semi-clean chamber rate, full net chamber rate, chest leg division ratio, blood glucose concentration, serum total protein and globulin content were also determined The effect of the compound enzyme is better than that of each single enzyme 8NQ
　　We have adopted the method of "secondary regression universal rotation already design" to scientifically determine the "linear horizontal coding table", conduct accurate small group experiments, use computers for data processing, establish a multidimensional mathematical model, and screen out the optimal use of enzymes in broiler production 8NQ
　　In order to further confirm the effect of enzyme preparation, the mechanism of action of enzyme preparation is discussed, and this experiment has been carried out, the results are reported as follows 8NQ
　　Materials and methods 8NQ test chicken selection AA broiler commodity on behalf of 600 young chicks, randomly divided into 5 groups, each group 120, each group set 3 repeats, each repeat 40 (female and male half) A, B, C, D test group added compound enzymes, lipase, alpha-amylase and neutral protease, E group did not add, for the control group The trial period is 49 days 8NQ
　　The measurement project and method 8NQ 1 Production performance determination (breeding test) were measured weekly by repeat group, and the weight, consumption and mortality were calculated 8NQ
　　2 The metabolic test collected each repeated group of fecal urine continuously for 5 days from the age of 7, and recorded the amount of food taken by the repeat group After weighing all the dung urine, take 10%, mix 5% with enzymes, 5% without acid, make air-dried samples at 70 degrees C, use conventional methods to determine dry substances, crude protein, coarse fat, coarse ash, nitrogen-free leaching, crude fiber and other content, calculate the metabolic rate of nutrients 8NQ
　　Slaughter test 8NQ 1 muscle samples take each chicken chest muscle, leg muscle sample each 20 grams, according to the conventional method of muscle dry matter, crude protein and coarse fat 8NQ
　　2 While the slaughter rate is measured in the proportion of carcasses, the proportion of neck, back, waist, chest, legs, wings, claws is measured, and the proportion of each part is calculated 8NQ
　　3 At the end of the slaughter rate determination feeding test, each group randomly took 6 chickens (female and male half), determined its live weight, butcher weight, half-clean weight, full net load weight, chest muscle weight, leg muscle weight, abdominal fat weight, sub-seispolith fat thickness, etc., calculated slaughter rate, half-clean chamber rate, chest muscle rate, leg muscle rate, abdominal fat rate, etc 8NQ
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