饲粮粗蛋白水平对高海拔地区断奶藏仔猪生产性能和血液生化指标的影响

发布时间：2018-11-02 17:35

【摘要】：为了研究饲粮中不同粗蛋白(CP)水平对高海拔地区舍饲断奶藏仔猪生产性能和血液生化指标的影响,选择体质量(4.97±1.28)kg的健康断奶藏仔猪45头,随机分成5个处理,每个处理3个重复,每个重复3头仔猪。试验期28 d,分别饲喂藏猪CP水平为16%、17%、18%、19%和20%的饲粮,其他养分水平一致,测定其生产性能和血液生化指标。结果表明,饲粮CP水平显著影响断奶藏仔猪平均日增质量(ADG)与料肉比(F/G)(P0.05),对平均日采食量(ADFI)与血液生化指标无显著影响(P0.05)。16%CP组藏猪ADG与F/G显著低于19%与20%组(P0.05),18%、19%与20%组间ADG与F/G无显著差异(P0.05);血清谷丙转氨酶及碱性磷酸酶浓度随饲粮CP水平的升高有先增加后降低的趋势,血清尿素氮、总胆固醇、甘油三酯及葡萄糖浓度随饲粮CP的升高而不断增加。综合考虑生产性能与血液生化指标认为,在高海拔地区,饲喂玉米豆粕型饲粮,消化能水平为13.4 MJ/kg时,断奶藏仔猪适宜的CP水平为18%。
[Abstract]:In order to study the effects of different dietary crude protein (CP) levels on the performance and blood biochemical indexes of weaned Tibetan piglets fed at high altitude, 45 healthy weaned Tibetan piglets with selective body weight (4.97 卤1.28) kg were selected. The piglets were randomly divided into 5 treatments, 3 replicates per treatment and 3 piglets per replica. During the experiment period 28 days, the CP levels of Tibetan pigs were 16% and 20%, respectively, and the other nutrient levels were the same. The production performance and blood biochemical indexes were determined. The results showed that dietary CP level significantly affected the average daily gain (ADG) and feed to meat ratio (F / G) of weanling Tibetan piglets (P0.05). There was no significant effect on average daily intake of (ADFI) and blood biochemical indexes (P0.05). ADG and F / G of Tibetan pigs in 16%CP group were significantly lower than those of 19% and 20% groups (P0.05). There was no significant difference between 19% and 20% groups in ADG and F / G (P0.05). The concentrations of serum alanine aminotransferase and alkaline phosphatase increased first and then decreased with the increase of dietary CP level. Serum urea nitrogen, total cholesterol, triglyceride and glucose concentration increased with the increase of dietary CP. Considering the production performance and blood biochemical indexes, it was concluded that the optimum CP level for weaning Tibetan piglets was 18 when the digestible energy level was 13.4 MJ/kg when the corn-soybean meal diet was fed at high altitude.
【作者单位】：西藏农牧学院动物科学学院;西藏自治区农牧科学院畜牧兽医研究所;云南省昆明市动物疫病预防控制中心;
【基金】：国家科技支撑计划(编号:2012BAD03B03) 西藏自治区自然科学基金(编号:2016ZR-15-37) 2016年西藏自治区厅校联合基金(编号:2016ZR-NQ-03) 西藏特色农牧资源研发协同创新中心(编号:HX2014006) 西藏特色畜牧种质资源创新平台项目(编号:HX2014008)
【分类号】：S828.5

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