宁夏地区荷斯坦奶牛不同群体生产性能对比分析
发布时间：2018-10-31 13:51
【摘要】：本文通过对宁夏农垦贺兰山农牧场饲养的乌拉圭奶牛、澳大利亚奶牛和宁夏本地奶牛三个荷斯坦奶牛群体头胎牛的泌乳性能、繁殖性能的分析,探讨三个荷斯坦奶牛群体在生产性能和选育水平的差异性。结果如下：1)同一牛场,三个奶牛群体泌乳性能比较：日产奶量,本地牛显著高于澳牛和乌牛(P0.05),澳牛和乌牛差异不显著(P0.05)。乳脂率,本地牛澳牛乌牛,但差异均不显著(P0.05)。乳蛋白率,乌牛澳牛本地牛,但差异均不显著(P0.05)。305天产奶量,本地牛显著高于乌牛(P0.05),本地牛与澳牛以及澳牛与乌牛差异均不显著(P0.05)。泌乳持续力,泌乳前期0-70天,三个荷斯坦奶牛群体的泌乳持续力均高于理想值,但澳牛最为接近理想值；泌乳中期70-190天,乌牛和澳牛泌乳持续力波动较大,偏离理想值,本地牛泌乳持续力波动较小,趋近于理想值,说明乌牛和澳牛泌乳性能发挥没有本地牛稳定；泌乳后期190天以后,三个奶牛群体泌乳持续力基本都略高于理想值,说明后期三个奶牛群体泌乳性能发挥良好。体细胞数,澳牛(24.518万/mL)乌牛(24.022万/mL)本地牛(22.615万/mL),但差异不显著(P0.05)。2)同一牛场,三个奶牛群体繁殖性能比较：一次情期受胎率,澳牛(53.85%)乌牛(50.00%)本地牛(46.15%)。情期受胎率,乌牛(50.94%)澳牛(48.78%)本地牛(46.88%)。3)不同牛场,三个奶牛群体泌乳性能比较：日产奶量,本地牛显著高于澳牛和乌牛(P0.05),澳牛和乌牛差异不显著(P0.05)。乳脂率,本地牛与澳牛以及澳牛与乌牛差异均不显著(P0.05),而本地牛显著高于乌牛(P0.05)。乳蛋白率,澳牛显著高于乌牛和本地牛(P0.05),且乌牛也显著高于本地牛(P0.05)。泌乳持续力,泌乳前期0-70天,三个荷斯坦奶牛群体的泌乳持续力均高于理想值,但澳牛最为接近理想值；泌乳中期70-190天,乌牛和澳牛泌乳持续力波动较大,偏离理想值；本地牛泌乳持续力相对稳定,趋近理想值；说明这一阶段本地牛泌乳性能比乌牛和澳牛相对稳定。4)不同牛场,三个奶牛群体繁殖性能比较：一次情期受胎率,本地牛(49.47%)乌牛(46.44%)澳牛(32.39%),差异不显著(P0.05)。情期受胎率,乌牛(54.71%)本地牛(51.27%)澳牛(49.38%),差异不显著(P0.05)。总体来说,产奶量上本地牛优于乌牛和澳牛；乳蛋白上,澳牛优于乌牛和本地牛；在其它生产性能上,三个奶牛群体的没有明显差异。
[Abstract]:In this paper, the lactation and reproduction performance of the first born cows of three Holstein dairy cattle populations, namely, Uruguay cow, Australian cow and Ningxia native cow, which were raised in the farming farm of Helan Mountain in Ningxia, were analyzed. To explore the differences of production performance and breeding level among the three Holstein cows. The results were as follows: 1) the lactation performance of the three cows in the same farm: the daily milk yield of the local cattle was significantly higher than that of the Australian cattle and the black cow (P0.05), but the difference between the Australian cattle and the black cow was not significant (P0.05). Milk fat rate, local cattle, black cattle, but the difference was not significant (P0.05). The milk protein rate of local cattle was not significant (P0.05). The milk yield of local cattle was significantly higher than that of black cow (P0.05). There was no significant difference between local cattle and Australian cattle and black cow (P0.05). The lactation duration of the three Holstein cows was higher than the ideal value during 0-70 days of early lactation, but the Australian cow was the most close to the ideal value. In the middle period of 70 to 190 days, the lactation persistence of black and Australian cattle fluctuated greatly, deviating from the ideal value, and the fluctuation of local cow's lactation persistence was small and approaching to the ideal value, which indicated that the lactation performance of Wu Niu and Australian cattle was not stable as compared with that of local cattle. After 190 days of lactation, the lactation sustainability of the three groups was slightly higher than the ideal value, which indicated that the lactation performance of the three groups was good. The number of somatic cells in Australian cattle (245180 / mL), black cattle (240220 / mL), native cattle (226150 / mL), but the difference was not significant (P0.05). 2. The reproductive performance of three cows in the same farm was compared. Australian cattle (53.85%), black cattle (50.00%) and local cattle (46.15%). The rate of conception in oestrous period was 50.94%, 48.78% (48.78%) and 46.88%, respectively. 3) the lactation performance of three dairy cattle populations was compared with that of Australian cattle (48.78%), the daily milk yield of local cattle was significantly higher than that of Australian cattle and black cow (P0.05). There was no significant difference between Australian cattle and black cattle (P0.05). The milk fat rate of local cattle and Australian cattle as well as Australian cattle and black cattle were not significantly different (P0.05) but the local cattle were significantly higher than that of black cattle (P0.05). The milk protein rate of Australian cattle was significantly higher than that of black cattle and native cattle (P0.05), and the rate of milk protein was also significantly higher than that of native cattle (P0.05). The lactation duration of the three Holstein cows was higher than the ideal value during 0-70 days of early lactation, but the Australian cow was the most close to the ideal value. In the middle lactation period of 70-190 days, the lactation persistence of WuNiu and Australian cattle fluctuated greatly and deviated from the ideal value, and the lactation persistence of local cattle was relatively stable and approaching the ideal value. The results showed that the lactation performance of local cattle in this period was more stable than that of black cattle and Australian cattle. 4) the reproductive performance of the three populations in different cattle farms was compared with that in the first estrus period. Local cattle (49.47%), black cattle (46.44%) and Australian cattle (32.39%) had no significant difference (P0.05). The conception rate in oestrous period was 54.71% in black cattle, 51.27% in local cattle and 49.38% in Australian cattle, but the difference was not significant (P0.05). In general, the milk yield of native cattle is better than that of black cow and Australian cow; the milk protein of Australian cow is better than that of black cow and native cow.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S823
本文编号：2302431
[Abstract]:In this paper, the lactation and reproduction performance of the first born cows of three Holstein dairy cattle populations, namely, Uruguay cow, Australian cow and Ningxia native cow, which were raised in the farming farm of Helan Mountain in Ningxia, were analyzed. To explore the differences of production performance and breeding level among the three Holstein cows. The results were as follows: 1) the lactation performance of the three cows in the same farm: the daily milk yield of the local cattle was significantly higher than that of the Australian cattle and the black cow (P0.05), but the difference between the Australian cattle and the black cow was not significant (P0.05). Milk fat rate, local cattle, black cattle, but the difference was not significant (P0.05). The milk protein rate of local cattle was not significant (P0.05). The milk yield of local cattle was significantly higher than that of black cow (P0.05). There was no significant difference between local cattle and Australian cattle and black cow (P0.05). The lactation duration of the three Holstein cows was higher than the ideal value during 0-70 days of early lactation, but the Australian cow was the most close to the ideal value. In the middle period of 70 to 190 days, the lactation persistence of black and Australian cattle fluctuated greatly, deviating from the ideal value, and the fluctuation of local cow's lactation persistence was small and approaching to the ideal value, which indicated that the lactation performance of Wu Niu and Australian cattle was not stable as compared with that of local cattle. After 190 days of lactation, the lactation sustainability of the three groups was slightly higher than the ideal value, which indicated that the lactation performance of the three groups was good. The number of somatic cells in Australian cattle (245180 / mL), black cattle (240220 / mL), native cattle (226150 / mL), but the difference was not significant (P0.05). 2. The reproductive performance of three cows in the same farm was compared. Australian cattle (53.85%), black cattle (50.00%) and local cattle (46.15%). The rate of conception in oestrous period was 50.94%, 48.78% (48.78%) and 46.88%, respectively. 3) the lactation performance of three dairy cattle populations was compared with that of Australian cattle (48.78%), the daily milk yield of local cattle was significantly higher than that of Australian cattle and black cow (P0.05). There was no significant difference between Australian cattle and black cattle (P0.05). The milk fat rate of local cattle and Australian cattle as well as Australian cattle and black cattle were not significantly different (P0.05) but the local cattle were significantly higher than that of black cattle (P0.05). The milk protein rate of Australian cattle was significantly higher than that of black cattle and native cattle (P0.05), and the rate of milk protein was also significantly higher than that of native cattle (P0.05). The lactation duration of the three Holstein cows was higher than the ideal value during 0-70 days of early lactation, but the Australian cow was the most close to the ideal value. In the middle lactation period of 70-190 days, the lactation persistence of WuNiu and Australian cattle fluctuated greatly and deviated from the ideal value, and the lactation persistence of local cattle was relatively stable and approaching the ideal value. The results showed that the lactation performance of local cattle in this period was more stable than that of black cattle and Australian cattle. 4) the reproductive performance of the three populations in different cattle farms was compared with that in the first estrus period. Local cattle (49.47%), black cattle (46.44%) and Australian cattle (32.39%) had no significant difference (P0.05). The conception rate in oestrous period was 54.71% in black cattle, 51.27% in local cattle and 49.38% in Australian cattle, but the difference was not significant (P0.05). In general, the milk yield of native cattle is better than that of black cow and Australian cow; the milk protein of Australian cow is better than that of black cow and native cow.
【学位授予单位】：宁夏大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S823
【参考文献】
相关期刊论文 前10条
1 尼满;刘武军;朱勇;;新疆褐牛的体尺、体重对产奶量的影响[J];中国牛业科学;2008年04期
2 王广山;沈彦平;范惠玲;范春梅;;引入澳青年奶牛繁殖障碍的原因分析及诊治[J];当代畜禽养殖业;2007年04期
3 王东卫;曹志军;李胜利;黄文明;王瑜;温万;邵怀峰;王之盛;王伟华;蔡志斌;;牛奶尿素氮含量与奶牛繁殖性能的关系[J];动物营养学报;2010年06期
4 李士泽,杨玉英,何晶,顾少英;北方寒区环境因素对奶牛生产性能的影响[J];黑龙江八一农垦大学学报;1999年03期
5 高民;杜瑞平;温雅丽;;热应激对奶牛生产的影响及应对策略[J];畜牧与饲料科学;2011年Z1期
6 张敏;宋伟红;王恒昌;陈博;;影响奶牛繁殖性能的因素及防控措施[J];黑龙江动物繁殖;2012年04期
7 蒋桂娥;刘廷玉;马亚宾;杨晨东;韩杰;;通过DHI报告来解读奶牛乳房炎[J];今日畜牧兽医;2014年03期
8 黄晓燕;刘玮;卞玲;;奶牛夏季中暑的原因及防治措施[J];河南畜牧兽医(综合版);2010年06期
9 郝贵军;季鑫宇;;冬季提高北方奶牛产奶量的技术要点[J];农村百事通;2009年21期
10 丁洪涛;刘子睿;;不同日粮营养水平对奶牛产奶量及乳脂率的影响[J];畜牧与兽医;2011年05期
，本文编号：2302431
本文链接：https://www.wllwen.com/yixuelunwen/dongwuyixue/2302431.html
