摘要
选用1日龄罗斯308肉鸡216羽(公母各半),随机分为2组,每组设3个重复。对照组和处理组分别饲喂基础日粮、基础日粮+枯草芽孢杆菌(B.subtilis)105 CFU/g。饲养试验期为42d。结果表明:与对照组相比,处理组肉鸡失水率降低了22.66%(P<0.05),胸肌和腿肌的亮度值(L值)、红度值(a值)和黄度值(b值)均有所提高,但差异不显著。饲料干物质、粗蛋白、粗脂肪和粗灰分的消化率分别提高了13.80%(P<0.01)、15.90%(P<0.01)、11.38%(P<0.01)和12.07%(P<0.05)。处理组血氨(BA)、尿酸(UA)、总胆固醇(T-CHL)和甘油三酯(TG)的含量分别降低了16.51%(P<0.05)、24.35%(P<0.05)、38.81%(P<0.01)和32.82%(P<0.05);血清碱性磷酸酶(AKP)的活性提高了63.16%(P<0.01),但对血清谷草转氨酶、谷丙转氨酶和葡萄糖含量无显著影响。结果提示:日粮中添加适量B.subtilis能改善肉鸡的肉品质,提高肉鸡对饲料养分的消化率,显著提高AKP的活性,并显著降低血清中SA、UA、T-CHL和TG的含量。
This study was conducted to determine the effects of B.subtilis on meat quality,nutrient digestibility and serum biochemical parameters of broilers.216 1-day-old Ross 308 broilers were randomly divided into the control group(basal diet)and the treatment group(basal diet supplemented with 105 CFU/g B.subtilis).Each group had three replicates 36 broilers each(half male and half female),the experiment lasted for 42 days.The results showed that dehydration rate of pectorales was decreased significantly,while the lightness(L*),redness(a*),and yellowness(b*)values of pectorales and crureus were improved(P >0.05)compared with the control group.The addition of B.subtilis increased the digestibility of dry matter(P<0.01),crude protein(P<0.01),ether extract(P<0.01)and crude ash(P<0.05)evidently.The level of serum BA,UA,T-CHL and TG were decreased significantly(P<0.05),while the activity of AKP was improved(P<0.01)compared to the control group.In conclusion,the addition of B.subtilis in the diets could improve meat quality,the digestibility of feed nutrient through impacting serum biochemical parameters of broiler.
出处
《中国兽医学报》
CAS
CSCD
北大核心
2014年第10期1682-1685,共4页
Chinese Journal of Veterinary Science
基金
浙江省重大科技专项资助项目(2006C12086)
"十二五"农村领域国家科技计划课题资助项目(2013BAD10B03)
关键词
枯草芽孢杆菌
肉品质
养分消化率
血清生化指标
肉鸡
B.subtilis
meat quality
nutrient digestibility
serum biochemical parameters
broilers
