This study examined that the efficiency of Bacillus pumilus(BP)on growth performance and meat quality of broiler chickens.A total of day old 240 male broiler chicks were purchased from local hatchery Hyderabad.The chi...This study examined that the efficiency of Bacillus pumilus(BP)on growth performance and meat quality of broiler chickens.A total of day old 240 male broiler chicks were purchased from local hatchery Hyderabad.The chicks were allocated into four groups with six replicates of 10 birds in each replicate.Four diets were prepared for experiment,which included control as basal diet,BP-0.1(CONT+0.1%BP),BP-0.2(CONT+0.2%BP)and AGP(CONT+zinc bacitracin 20 ppm)as antibiotic growth promotor.The results showed that live body weight(LBW),average daily gain was recorded higher(P<0.01)in birds fed diet with BP-0.1 than control and BP-0.2 groups,as well as ADFI also increased in BP-0.1 than control group.BP-0.1 supplementation significantly reduced feed conversion ratio(FCR)than other groups(P<0.01).Both moisture and crude protein(CP)content influenced by supplementation of BP-0.1 than other groups.However,birds fed diet with BP-0.1 had least fat content in breast meat compared with the other groups(P<0.01).In addition,BP-0.1probiotic-fed birds had the lowest(P<0.01)pH,cooking loss(CL)and drip loss(DL)as compared to control,BP-0.2 and AGP groups.The water holding capacity(WHC)were found higher in BP-0.1 as compared to other groups(P<0.01).In conclusion,Bacillus pumilus probiotic supplementation is a promising approach for substitution of antibiotics in broiler diet for enhancement of growth performance and physiochemical properties of meat.展开更多
Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supp...Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supported from diet. Polyamines as the key compounds play essential role in cell proliferation, growth and differentiation. They also exert significant effects on embryonic development,implantation, embryonic diapause, placentation, angiogensis and fetal development. This review paper summarizes the functions of polyamines and embryo/fetus development and its regulatory mechanism which should help to provide some evidences for clinic.展开更多
文摘This study examined that the efficiency of Bacillus pumilus(BP)on growth performance and meat quality of broiler chickens.A total of day old 240 male broiler chicks were purchased from local hatchery Hyderabad.The chicks were allocated into four groups with six replicates of 10 birds in each replicate.Four diets were prepared for experiment,which included control as basal diet,BP-0.1(CONT+0.1%BP),BP-0.2(CONT+0.2%BP)and AGP(CONT+zinc bacitracin 20 ppm)as antibiotic growth promotor.The results showed that live body weight(LBW),average daily gain was recorded higher(P<0.01)in birds fed diet with BP-0.1 than control and BP-0.2 groups,as well as ADFI also increased in BP-0.1 than control group.BP-0.1 supplementation significantly reduced feed conversion ratio(FCR)than other groups(P<0.01).Both moisture and crude protein(CP)content influenced by supplementation of BP-0.1 than other groups.However,birds fed diet with BP-0.1 had least fat content in breast meat compared with the other groups(P<0.01).In addition,BP-0.1probiotic-fed birds had the lowest(P<0.01)pH,cooking loss(CL)and drip loss(DL)as compared to control,BP-0.2 and AGP groups.The water holding capacity(WHC)were found higher in BP-0.1 as compared to other groups(P<0.01).In conclusion,Bacillus pumilus probiotic supplementation is a promising approach for substitution of antibiotics in broiler diet for enhancement of growth performance and physiochemical properties of meat.
基金supported by the National Science and Technology Ministry (2014BAD08B11)the National Natural Science Foundation of China(No. 31330075, 31560640, 31372326, and 31301989)+2 种基金the Science and Technology Department of Hunan Province (2015JC3126)CAS-TWAS President's Fellowship and UCAS financial and infrastructure supportChangsha Lvye Biotechnology Limited Company Academician Expert Workstation
文摘Polyamines such as putrescine, spermidine, spermine and agmatine are aliphatic polycationic compounds present in all living cells, and are derived from amino acids, intestinal bacteria, exfoliated enterocytes and supported from diet. Polyamines as the key compounds play essential role in cell proliferation, growth and differentiation. They also exert significant effects on embryonic development,implantation, embryonic diapause, placentation, angiogensis and fetal development. This review paper summarizes the functions of polyamines and embryo/fetus development and its regulatory mechanism which should help to provide some evidences for clinic.
