混合型饲料添加剂对缓解泌乳奶牛瘤胃酸中毒作用的研究
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摘要
研究混合型饲料添加剂对缓解奶牛瘤胃酸中毒的作用效果。选择荷斯坦泌乳奶牛130头,以添加混合型饲料添加剂前连续1周各项指标值作为试验前水平,以添加混合型饲料添加剂后2周内各项指标值作为试验后水平,试验期每头牛添加混合型饲料添加剂200 g/d。结果显示,添加200 g/(头·d)混合型饲料添加剂,可提高奶牛干物质采食量0.99 kg/d,产奶量增加1.44 kg/d(P<0.05),血清脂多糖含量显著降低(P<0.05)。说明该混合型饲料添加剂对缓解奶牛瘤胃酸中毒、恢复采食量与产奶量、降低血清脂多糖含量具有积极作用。
To evaluate the effects of mixed feed additive on production performance in lactating dairy cows under rumen acidosis, 130 Holstein lactation dairy cows under rumen acidosis were selected for the trial. The trial was lasted for 21 days. On days 1 to 7, cows were fed basal diet;on days 8 to 21, cows were fed the basal diet which was added mixed feed additive 200 g per head per day. The dry matter intake(DMI), milk yield, milk protein and milk fat were measured everyday. Serum samples were collected at day 1, 7, 14 and 21. The results showed that the DMI and milk yield during the days 8 to 21 was increased compared with the days 1 to 7. Serum lipopolysaccharide(LPS) content was significantly decreased(P<0.05). In conclusion, the mixed feed additive could alleviate rumen acidosis and improve the production performance of dairy cows.
To evaluate the effects of mixed feed additive on production performance in lactating dairy cows under rumen acidosis, 130 Holstein lactation dairy cows under rumen acidosis were selected for the trial. The trial was lasted for 21 days. On days 1 to 7, cows were fed basal diet;on days 8 to 21, cows were fed the basal diet which was added mixed feed additive 200 g per head per day. The dry matter intake(DMI), milk yield, milk protein and milk fat were measured everyday. Serum samples were collected at day 1, 7, 14 and 21. The results showed that the DMI and milk yield during the days 8 to 21 was increased compared with the days 1 to 7. Serum lipopolysaccharide(LPS) content was significantly decreased(P<0.05). In conclusion, the mixed feed additive could alleviate rumen acidosis and improve the production performance of dairy cows.
引文
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[14] 杨成栋,陈帅,魏安民,等.牛瘤胃酸中毒的血液学及生化指标变化[J].中国牛业科学,2008,34(5):58-59.
[15] 盛云峰,宁洪波,李徐延.奶牛瘤胃酸中毒相关血液指标及乳酸含量的测定与分析[J].奶牛保健,2008(6):43-45.
[2] 李冲,石凤霞.奶牛瘤胃酸中毒机制及其营养调控措施的研究进展展[J].中国饲料,2016(3):5-8.
[3] 肖定汉.奶牛病学[M].北京:中国农业大学出版社,2012.
[4] 潘晓花,郝志敏,王洪荣,等.营养性添加剂硫胺素与奶牛瘤胃酸中毒关系概述[J].中国奶牛,2011,22:14-17.
[5] 曾光.酵母复合微生态制剂对 SARA 山羊模型的调控作用[D].吉林:吉林大学,2016.
[6] BEAUCHEMIN K,YANG W,MORGAVI D,et al.Effects of bacterial direct-fed microbials and yeast on site and extent of digestion,blood chemistry,and subclinical ruminal acidosis in feedlot cattle[J].J Anim Sci,2003,81(6):1 628-1 640.
[7] 吴江,叶耿坪,唐新仁,等.益生菌防治瘤胃酸中毒的研究进展[J].乳业科学与技术,2017,40(1):28-32.
[8] ZAWORSKI E M,YOON I,BOBE G,et al.Effects of feeding various dosages of Saccharomyces cerevisiae fermentation product in transition dairy cows [J].J Dairy Sci,2014,97:3 081- 3 098.
[9] ZHU W,YOON I,LIU J X.et al.Effects of supplemental levels of Saccharomyces cerevisiae fermentation product on lactation performance in dairy cows under heat stress[J].Asian Australas J Anim Sci,2016,29(6):801-806.
[10] PAN X H,YANG L,XUE F G,et al.Relationship between thiamine and subacute ruminal acidosis induced by high grain diet in dairy cows[J].J Dairy Sci,2016,99:8 790-8 801.
[11] SHAVER R D,BAL M A.Effect of dietary thiamine supplementation on milk production by dairy cows[J].J Dairy Sci,2000,83:2 335-2 340.
[12] KHOLIF A M,HANAFY M A,EI-SHEWY A A,et al.Effect of supplementing rations with thiamin and /or sodium bicarbonate on milk yield and composition of lactating cows[J].Egyptian J Nutri and Feeds,2009,12(2):187-195.
[13] PLAIZIER J C,KRAUSE D O,GOZHO G N,ET AL.Subacute ruminal acidosisin dairy cows:The physiological causes,incidence and consequences[J].Vet J,2009,176:21-31.
[14] 杨成栋,陈帅,魏安民,等.牛瘤胃酸中毒的血液学及生化指标变化[J].中国牛业科学,2008,34(5):58-59.
[15] 盛云峰,宁洪波,李徐延.奶牛瘤胃酸中毒相关血液指标及乳酸含量的测定与分析[J].奶牛保健,2008(6):43-45.
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