Study On Supplementary Feeding Of Broiler Scatter-fed In Tea Plantation

The aim to study on supplementary feeding of broiler scatter-fed in tea plantation,540 male broilers which were stopped heat supplication,healthy,same body weight and 5 weeks old were selected and divided into 9 groups.There were 3 repetitions in every group and 20 broilers in each repetition.The experimental broiler(5-8 weeks old)in different group were fed corresponding diet with different ME and CP levels,the ME levels were 11.30 MJ/kg,12.13 MJ/kg and 12.97 MJ/kg,CP levels were 14%,17%,20%.Moreover,the ME levels were11.51 MJ/kg,12.55 MJ/kg,13.97 MJ/kg,CP levels were 12%?14%?16% in the experimental diet of 9th-12 th week broilers.Two factors and three levels(2*3)experimental design,feeding trial and metabolism trial were used to determine the effects of ME,CP on growth performance of scatter-fed broiler in tea plantation,to reach the requirement of ME and CP on different stage scatter-fed broiler in tea plantation.The analysis of requirements for ME and CP were based on synthetic method and factorial method.In order to explore the effect on the production performance of tea by-product fed broilers,120 healthy broilers at the age of 5 weeks old with same body weight were assigned to four dietary treatments with three replicates and ten broilers in each group.The tea silage was added to replay the base diet of 0%,5%,8%,11% separately in 30 days comparative feeding trail.Five broilers of each treatment were slaughtered to determine chicken meat quality at the end of this test,The result shows that :(1)the best optimal feed formula of 5-8 weeks broiler scatter-fed in tea plantation is:corn 61.44%,bean pulp 20.88%,wheat bran 3.49%,rapeseed dregs5.00%,soya-bean oil 5.56%,calcium hydrophosphate1.23%,mountain flour 1.10%,salt0.3%,compound premix1%;the nutritional level is :ME:12.97MJ/kg,CP:17%.(2)the best optimal feed formula of 9-12 weeks broiler scatter-fed in tea plantation is:corn 52.59%,bean pulp 11.65%,wheat bran 16.41%,rapeseed dregs 5.00%,soya-bean oil10.73%,calcium hydrophosphate1.01%,mountain flour 1.30%,salt 0.3%,compound premix1%;the nutritional level is :ME:13.39MJ/kg,CP:14%.(3)Add tea silage in daily ration,can improve the growth performance,slaughter performance and the meat quality of broiler.Add 8% tea silage in daily ration,the ADG of broiler was enhanced,the meat driage was decreased,at the same time,the morbility and mortality was minimum,dressing percentage and carcass net rate was highest,feeding value was best.