| In this paper, through the3test, the material effect of supplement in theapplication of rumen protected lysine adding different proportion in fattening cattleand sheep semen.Experiment1: This trial was conducted to evaluate the ruminal degradbility andintestinal digestibility of ruminally protected lysine product by the standard three-stepin vitro procedure. Results indicated that the effective degradability of DM and CP oftested product were all about20%, the rumen bypass rate achieved80%or more.After incubation in the pepsin solution for1h and thereafter in the trypsin solution for24h, the in vitro intestinal digestibility of DM and CP were67%and98.8%,respectively. Integrated into account of the ruminal bypass rate and subsequentintestinal digestibility results of this trial, conclusion can be drawn that thebioavailability for ruminant animal of this ruminally protected lysine product accountsfor80%or more. This ruminally protected lysine product will provide a new effectiverumen-bypass lysine supplement form for ruminant feeding, and its extendedapplication in future will be worth anticipating.Experiment2: Study on rumen protected lysine supplementation on growthperformance and carcass quality in addition to cattle feed in beef extract. Using40crossbred Xinjiang Brown bulls, were fed supplements adding different proportion ofrumen protected lysine based concentrate (0%,0.15%,0.3%,0.45%). For90days onend, determination of daily gain performance and carcass shape index The resultsshow that: Basic precision feeding in rumen protected lysine can promote the growthof beef cattle; the slaughter weight, carcass weight, net meat weight, net meat rate,carcass meat production rate has increased trend; for abdominal fat weight rumenprotected lysine can decrease abdominal fat of beef cattle;for the meat fat ratio, meatbone ratio with increasing trend; add0%and0.15%and0.3%and0.45%significantdifference (P <0.05), add the difference between0%and0.15%the effect is notsignificant (P>0.05), add the difference between0.3%and0.45%the effect is notsignificant (P>0.05), to add0.3%and0.45%rumen protected lysine group is the best.But for the bone weight, slaughter rate differences were not significant (P>0.05).Through comprehensive analysis of shape gain weight and carcass, the test of beef cattle concentrate supplement formulations containing0.3%rumen protectedlysine is the most suitable economic amount.Experiment3: Study on rumen protected lysine supplementation on growthperformance and carcass quality in addition to sheep in sheep semen. A total of40Xinjiang Kazak coarse wool sheep (RAM), were fed supplements adding differentproportion of rumen protected lysine based concentrate (0%,0.15%,0.3%,0.45%).For75days on end, determination of daily gain performance and carcass shape index.The results show that: the basic precision feeding in rumen protected lysine canimprove the sheep growth trend, with the fine feed containing0.45%of rumenprotected lysine was best, fine feeding added0%,0.15%,0.3%of rumen protectedlysine groups were not significant (P>0.05), while the fine feed add0.45%and0%,0.15%,0.3%of rumen protected lysine were improved significantly (P <0.05);through the analysis of slaughter test on sheep carcass shape between groupcomparison, fine feed in rumen protected lysine on slaughter weight, carcass weightwith increasing trend, tonic material is added between0%and0.15%and0.3%and0.45%, the effect is not significant (P>0.05), for the carcass shape index in theslaughter rate differences were not significant (P>0.05). Through comprehensiveanalysis of shape gain weight and carcass, the test sheep concentrate added0.45%supplement formulations of rumen bypass amino acid lysine best effect. |
