宁夏中地生态牧场奶牛淘汰原因与胎次和月份的关系研究
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摘要
对宁夏中地生态牧场奶牛淘汰原因与胎次和月份关系进行了研究,结果发现在2015年和2016年中,乳腺疾病、肢蹄病和消化系统疾病均是引起贺兰中地生态牧场奶牛淘汰的主要因素;淘汰率最高的月份均为5月份,2015年第2胎的淘汰率最高,2016年第1胎的淘汰率最高.奶牛的淘汰原因与胎次和月份均差异不具有统计学意义,但淘汰原因与月份有一定的相关性.
The relationship of the causes for dairy cattle culling at Helan Zhongdi Ecological Ranch in Ningxia with parity and month was studied so as to provide some guidance in production.The results showed that breast disease,limb hoof disease and digestive system diseases were the main factors responsible for dairy cow culling in Helan Zhongdi Ecological Ranch in 2015 and 2016.Highest culling rate occurred in May of both years,and the 2nd parity had the highest culling rate in 2015,while the 1st parity had the highest culling rate in 2016.The reasons of dairy cattle culling with parities and month were not significantly different(p>0.05),but dairy cattle culling was,to some extent,correlated with the month.
The relationship of the causes for dairy cattle culling at Helan Zhongdi Ecological Ranch in Ningxia with parity and month was studied so as to provide some guidance in production.The results showed that breast disease,limb hoof disease and digestive system diseases were the main factors responsible for dairy cow culling in Helan Zhongdi Ecological Ranch in 2015 and 2016.Highest culling rate occurred in May of both years,and the 2nd parity had the highest culling rate in 2015,while the 1st parity had the highest culling rate in 2016.The reasons of dairy cattle culling with parities and month were not significantly different(p>0.05),but dairy cattle culling was,to some extent,correlated with the month.
引文
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[2]程郁昕,章先.荷斯坦奶牛非本意淘汰的原因及分析[J].当代畜牧,2011(3):6-8.
[3]李权武,武浩,陈立强,等.成乳奶牛淘汰原因的调查与分析[J].动物医学进展,2000,21(4):140-142.
[4]张虎,胡华,陆续,等.浅谈奶牛死亡及淘汰增多的原因及其防治措施[J].中国牛业科学,2012,38(2):95-96.
[5]张瑞华,张峥臻,张克春.上海地区规模奶牛场牛只淘汰原因与胎次、月份关系的研究[D].西安:第五届中国奶业大会论文集,2014:429-431.
[6]王立群,杨湛澄,黎草木子,等.山西省奶牛淘汰原因分析[J].中国奶牛,2014(18):13-16.
[7]张振权,洪光辉.奶牛肢蹄疾病的分析和综合防治[J].新疆畜牧业,2009(5):32-34.
[8] ADAMCZYK K,MAKULSKA1J,JAGUSIAK W,et al.Associations Between Strain,Herd Size,Age at First Calving,Culling Reason and Lifetime Performance Characteristics in Holstein-Friesian Cows[J].Animal,2017,11(2):327-334.
[9] VAKKAMKI J,TAPONEN S,HEIKKILA M,et al.Bacteriological Etiology and Treatment of Mastitis in Finnish Dairy Herds[J].Acta Vet Scand,2017,59(12):33-38.
[10]MONIKA R,PARMAR S V,SHAH B S,et al.Studies on Culling Pattern in Crossbred Cows at an Organized Farm.Advances in Life Sciences,2016,5(5):2000-2003.
[11]施正香,王朝元,许云丽,等.奶牛夏季热环境控制技术研究与应用进展[J].中国畜牧杂志,2011,47(10):41-45.
[12]MOUSSAVI A H,MESGARAN M D,GILBERT R O.Effect of Mastitis During the First Lactation on Production and Reproduction Performance of Holstein Cows[J].Tropical Animal Health and Production,2012,44(7):1567-1573.