动物营养学报2018，Vol.30Issue(5)：1703-1712,10.DOI:10.3969/j.issn.1006-267x.2018.05.013
不同比例全株玉米青贮饲粮对生长猪生产性能、养分利用、血液学指标和血清氧化应激指标的影响
Effects of Diets with Different Proportions of Whole Plant Corn Silage on Performance, Nutrient Utilization, Hematological Indexes and Serum Oxidative Stress Indexes of Growing Pigs
摘要
Abstract
The aim of the present study was to investigate the effects of diets with different proportions of whole plant corn silage on performance, nutrient utilization, hematological indexes and serum oxidative stress indexes of growing pigs. A total of 32 growing pigs(Duroc×Landrace×Large White)with the similar parity and body weight[(33.16±3.49)kg]were allocated into 4 groups with 8 replicates per group, and pigs were fed individually in a metabolic cage for 42 days after 7 days adaptation. The control group was fed a basal diet, and the dietary nutrient level was according to reference of NY/T 65—2004 lean pig feeding standard. In the three test groups, the ratios of 20%,30% and 40% whole plant corn silage was used to replace the basal diet, respectively. The crude fiber content(dry matter basis)in the above 4 diets was 3.0%, 3.5%, 4.0% and 4.5%, respectively. The results showed that with the whole plant corn ratio increasing in the diet, the final body weight, average daily gain(ADG), apparent digestibility of nutrients(dry matter, organic matter, crude protein, ether extract and gross energy), biological value(BV)of protein, net protein utilization (NPU), gross energy metabolizable rate, hemoglobin concentration and serum ceruloplasmin(CER)content of growing pigs decreased linearly(P<0.05), but the average daily feed intake as fed basis(FB-ADFI), av-erage daily feed intake as dry matter basis(DM-ADFI), average daily crude fiber intake(ADCFI)and feed to gain ratio as fed basis(FB-F/G)and feed gain ratio as dry matter basis(DM-F/G)increased linearly(P<0.05). Compared with the control group, no significant effects on the ADG, DM-ADFI, DM-F/G, BV of protein, NPU, hematological indexes and serum oxidative stress indexes of growing pigs of 20% and 30%whole plant corn silage groups were observed(P>0.05). However,the final body weight,ADG,nutrient ap-parent digestibility, hemoglobin concentration and serum CER content of 40% whole plant corn silage group were significantly decreased(P<0.05). It is concluded that the whole plant corn silage can be used for the preparation of low nutritional level diet for growing pigs,which can ensure the performance and improve health status when the feeding ratio is 20% to 30%.关键词
玉米全株青贮/粗纤维/生长猪/生产性能/养分消化代谢/血液学指标/血清氧化应激指标Key words
whole plant corn silage/crude fiber/growing pigs/performance/nutrient digestion and metabo-lism/hematological indexes/serum oxidative stress indexes分类
农业科技引用本文复制引用
孙静,姜淑贞,杨在宾,杨晨,吴晓静,李思梦,杨维仁,薛峰,李会荣,李祥明..不同比例全株玉米青贮饲粮对生长猪生产性能、养分利用、血液学指标和血清氧化应激指标的影响[J].动物营养学报,2018,30(5):1703-1712,10.基金项目
山东省现代农业产业技术体系生猪创新团队建设项目(SDAIT-08-04) （SDAIT-08-04）
山东省重点研发计划项目"玉米青饲生产优质猪肉和粪污还田精准化关键技术研究与集成"(2016GNC111018) （2016GNC111018）
山东省农业重大应用技术创新项目"全株青绿玉米生产优质猪肉技术研究"(201636) （201636）
"双一流"奖补资金 （）
