动物营养学报2017，Vol.29Issue(2)：488-501,14.DOI:10.3969/j.issn.1006-267x.2017.02.016
苜蓿多糖对不同性别肉仔鸡生长性能、屠宰性能、肉品质及抗氧化性能的影响
Effects of Alfalfa Polysaccharide on Growth Performance, Slaughter Performance,Meat Quality and Antioxidant Ability in Male and Female Broilers
摘要
Abstract
This experiment was conducted to study the effects of alfalfa polysaccharide (AP) on growth performance, slaughter performance, meat quality and antioxidant ability in male and female broilers.Four hundred and sixty-eight 1-day-old Arbor Acres (AA) broilers were randomly allocated into 3 groups with 12 replicates (male and female broilers were all six replicates) in each group and 13 broilers per replicate.Group 1was the control group, and broilers in this group were fed a basal diet, while broilers in groups 2 and 3 were fed the basal diet supplemented with 1 000 and 2 000 mg/kg AP, respectively.The experiment lasted for 42days.The results showed as follows: compared with the control group, 1) diet supplemented with 1 000 and2 000 mg/kg AP had no significant differences in average body weight, average daily feed intake, average daily gain, feed/gain, dressed percentage, leg muscle percentage and abdominal fate rate of male and female broilers (P>0.05), but significantly increased eviscerated percentage and breast muscle percentage of female broilers (P<0.05), and diet supplemented with 2000 mg/kg AP also significantly increased breast muscle percentage of male broilers (P<0.05).2) For chest muscle, the pH4.5min of male broilers in 1 000 mg/kg AP group (group 2) was significantly increased (P<0.05), while the drip loss rate of male and female broilers and cook loss rate of male broilers were significantly decreased (P<0.05);the drip loss rate of male and female broilers and cook loss rate of male broilers in 2 000 mg/kg AP group (group 2) were significantly decreased (P<0.05).For leg muscle, the drip loss rate of male and female broilers and shear force of female broilers in 1 000 mg/kg AP group were significantly decreased (P<0.05), while the pH24h of female broilers was significantly increased (P<0.05);the drip loss rate and shear force of female broilers in 2 000 mg/kg AP group were significantly decreased (P < 0.05).3) The serum total antioxidant capacity (T-AOC) of male broilers at 21 days of age in 1 000 and 2 000 mg/kg AP groups was significantly increased (P<0.05), the serum T-AOC of female broilers at 35 and 42 days of age in 2 000 mg/kg AP group was significantly increased(P<0.05), the serum glutathione peroxidase (GSH-Px) activity of male and female broilers at 28 days of age in 2 000 mg/kg AP group was significantly increased (P<0.05), and the serum total superoxide dismutase(T-SOD) activity of female broilers at 21 and 35 days of age in 1 000 and 2 000 mg/kg AP groups was significantly increased (P<0.05), but diet supplemented with 1 000 and 2 000 mg/kg AP did not significantly affect serum malondialdehyde (MDA) content of male and female broilers (P>0.05);moreover, diet supplemented with 1 000 and 2 000 mg/kg AP did not significantly affect T-AOC, GSH-Px activity, T-SOD activity and MDA content in liver and breast muscle of male and female broilers (P>0.05).In conclusion, diet supplemented with AP do not significantly affect growth performance, however, it can improve carcass performance,meat quality and serum antioxidant ability of male and female broilers.It is recommended that the optimal supplemental level of AP is 1 000 mg/kg.[Chinese Journal of Animal Nutrition, 2017, 29(2) :488-501]关键词
苜蓿多糖/肉仔鸡/性别/生长性能/屠宰性能/肉品质/抗氧化性能Key words
alfalfa polysaccharides/broilers/sex/growth performance/slaughter performance/meat quality/antioxidant ability分类
农业科技引用本文复制引用
杨耀翔,杨玉,董晓芳,佟建明..苜蓿多糖对不同性别肉仔鸡生长性能、屠宰性能、肉品质及抗氧化性能的影响[J].动物营养学报,2017,29(2):488-501,14.基金项目
"十二五"国家科技支撑计划课题(2013BAD10B04) （2013BAD10B04）
中国农业科学院科技创新工程(ASTIP-IAS08) （ASTIP-IAS08）
