新疆地区荷斯坦牛乳中体细胞评分对产奶量与乳成分的影响

doi:10.16431/j.cnki.1671-7236.2019.11.022

摘要/Abstract

摘要： 为了探究牛乳中体细胞评分（SCS）对日产奶量（DMY）和乳成分之间的关系，了解奶牛乳房的健康状况，本研究使用新疆昌吉地区规模化牛场共2 338头荷斯坦牛的33 290条DHI记录和生产性能数据，将DHI记录中的体细胞数（SCC）转化为SCS后分析SCS对DMY与乳成分的影响。运用SAS 9.2软件对产奶量和乳成分进行最小二乘方差分析及多重比较，并对SCS与产奶量和乳成分进行相关性分析，其固定效应主要包括SCS、场、年份、季节及胎次效应。结果表明：SCS、场效应、年份效应、季节效应和胎次效应均对DMY与乳成分有极显著影响（P<0.01）。随着SCS的增加，DMY和乳糖率（MLP）呈下降趋势，当SCS为0水平，且SCC为9×10³~17×10³个/mL时，DMY和MLP极显著高于其他SCS水平（P<0.01）；MFP和MPP呈上升趋势，当SCS为9水平，且SCC为4 529×10³~4 904×10³个/mL时，MFP和MPP最高。相关性分析结果显示，SCS与DMY、MLP呈极显著负相关（P<0.01）；SCS与MFP、MPP呈极显著正相关（P<0.01）。因此，通过分析SCS对产奶量和乳成分间的关系，可为规模化牧场奶牛日常管理提供科学依据，预防和降低患乳房炎的风险。

关键词: 体细胞评分(SCS); 体细胞数(SCC); 产奶量; 乳成分; 荷斯坦牛

Abstract: In order to explore the relationship between daily milk yield (DMY)and milk composition of somatic cell score (SCS) in milk,and to understand the health status of dairy cows' breasts,in this study,33 290 DHI records and production performance data of 2 338 Holstein cattle in Changji area,Xinjiang were used to analyze the effect of SCS on daily milk yield and milk composition after converting SCC recorded by DHI into SCS.The least square variance analysis and multiple comparison of milk yield and milk composition were carried out by using SAS 9.2 software,and the correlation between SCS and DMY and milk composition was analyzed.The fixed effects mainly included SCS,field,year,season and parity effect.The results showed that the factors of SCS,field,year,seasonal and parity had significant effects on DMY and milk composition (P<0.01).With the increase of SCS,the DMY and milk lactose percentage (MLP) decreased.When SCS was 0 and SCC was 9×10³ to 17×10³,the DMY and MLP were extremely significantly higher than those of other SCS levels (P<0.01).The milk fat percentage (MFP) and milk protein percentage (MPP) showed an upward trend with the increased of SCS,and when SCS was 9 and SCC was 4 529×10³ to 4 904×10³,the MFP and MPP were highest.The results of correlation analysis showed that SCS,field,year,season and parity all had extremely significant effects on daily milk yield and milk composition (P<0.01);There was a extremely significant negative correlation between SCS and DMY,MLP (P<0.01),while SCS was extremely significantly positively correlated with MFP and MPP (P<0.01).Therefore,by analyzing the relationship between DMY,milk composition and SCS,it could provide scientific basis for daily management of large-scale dairy cows and prevent and reduce the risk of mastitis.

Key words: somatic cell score (SCS); number of somatic cells (SCC); milk yield; milk composition; Holstein cattle

中图分类号:

S823

赵番番, 葛建军, 李红燕, 张梦华, 魏趁, 王丹, 杜建文, 胥磊, 姜徽, 桑扎根, 黄锡霞, 谭世新. 新疆地区荷斯坦牛乳中体细胞评分对产奶量与乳成分的影响[J]. 中国畜牧兽医, 2019, 46(11): 3323-3331.

ZHAO Fanfan, GE Janju, LI Hongyan, ZHANG Menghua, WEI Chen, WANG Dan, DU Jianwen, XU Lei, JIANG Hui, SANG Zhagen, HUANG Xixia, TAN Shixin. Effects of Somatic Cell Score on Milk Yield and Milk Composition in Holstein Milk in Xinjiang[J]. China Animal Husbandry and Veterinary Medicine, 2019, 46(11): 3323-3331.

参考文献

[1] 甘宗辉,杨章平,李云龙,等.奶牛乳房炎的细菌感染与奶中体细胞数及乳成分的关系[J].畜牧兽医学报,2013,44(6):972-979. GAN Z H,YANG Z P,LI Y L,et al.Relationship of bacterial infection with somatic cell count and milk composition in dairy cows with mastitis[J].Acta Veterinaria Et Zootechnica Sinica,2013,44(6):972-979.(in Chinese)
[2] 牛华锋,薛增迪.体细胞数指标在奶牛生产中的应用[J].畜牧兽医杂志,2011,30(2):60-62. NIU H F,XUE Z D.Application of somatic cell number indexes in dairy cattle production[J].Journal of Animal Science and Veterinary Medicine,2011,30(2):60-62.(in Chinese)
[3] OVIEDO-BOYSO J,VALDEZ-ALARCÍN J J,CAJERO-JUÁREZ M,et al.Innate immune response of bovine mammary gland to pathogenic bacteria responsible for mastitis[J].Journal of Infection,2007,54(4):399-409.
[4] 张丹凤,王叶玲,陆东林.体细胞数(SCC)在奶牛生产中的应用[J].新疆畜牧业,2004,2:39-41. ZHANG D F,WANG Y L,LU D L.Application of somatic cell number in dairy cow production[J].Xinjiang Animal Husbandry,2004,2:39-40.(in Chinese)
[5] 郭家中,刘小林,徐阿娟,等.奶牛体细胞评分的变化规律研究[J].西北农林科技大学学报(自然科学版),2010,38(6):67-70. GUO J Z,LIU X L,XU A J,et al.Study on the variation of somatic cell score (SCS) in dairy cattle[J].Journal of Northwest A & F University (Natural Science Edition),2010,38(6):67-70.(in Chinese)
[6] 王根林.养牛学[M].第3版.北京:中国农业出版社,2014. WANG G L.Cattle Breeding[M].3rd Edition.Beijing:China Agriculture Press,2014.(in Chinese)
[7] 郭秀兰,王康宁.乳中体细胞数在牛奶生产中的监控作用[J].中国饲料,2003,20:33-34. GUO X L,WANG K N.The monitoring function of the number of body cells in milk prodution[J].China Feed,2003,20:33-34.(in Chinese)
[8] BARKEMA H W,SCHUKKEN Y H,LAM T J,et al.Incidence of clinical mastitis in dairy herds grouped in three categories by bulk milk somatic cell counts[J].Journal of Dairy Science,1998,81(2):411-419.
[9] BARILLET F,RUPP R,MIGNONGRASTEAU S,et al.Genetic analysis for mastitis resistance and milk somatic cell score in French Lacaune dairy sheep[J].Genetics Selection Evolution,2001,33(4):397-415.
[10] SØRENSEN M K,JENSEN J,CHRISTENSEN L G.Udder conformation and mastitis resistance in Danish first-lactation cows:Heritabilities,genetic and environmental correlations[J].Acta Agriculturae Scandinavica,2001,50(2):72-82.
[11] DE VLIEGHER S,LAEVENS H,BARKEMA H W,et al.Management practices and heifer characteristics associated with early lactation somatic cell count of Belgian dairy heifers[J].Journal of Dairy Science,2004,87(4):937-947.
[12] 郭刚.体细胞评分(SCS)的变异规律分析[A].中国牛业健康发展与科技创新——中国畜牧兽医学会第七届养牛学分会2009年学术研讨会论文集[C].2009. GUO G.Analysis of variation of somatic cell score (SCS)[A].Healthy development and scientific and technological innovation of cattle industry in China:Proceedings of the 2009 symposium of the seventh society of animal husbandry and veterinary medicine of China[C].2009.(in Chinese)
[13] ZWERTVAEGHER I,DE V S,VERBIST B,et al.Short communication:Associations between teat dimensions and milking-induced changes in teat dimensions and quarter milk somatic cell counts in dairy cows[J].Journal of Dairy Science,2013,96(2):1075-1080.
[14] OLDE RIEKERINK R G,BARKEMA H W,KELTON D F,et al.Incidence rate of clinical mastitis on Canadian dairy farms[J].Journal of Dairy Science,2008,91(4):1366-1377.
[15] 朱正鹏,单安山,薛艳林,等.牛乳体细胞数对牛奶品质的影响[J].中国畜牧杂志,2006,42(13):47-50. ZHU Z P,SHAN A S,XUE Y L,et al.Effects of dairy somatic cell count on milk quality[J].Chinese Journal of Animal Science,2006,42(13):47-50.(in Chinese)
[16] 田树清,范艳平.影响乳体细胞数的因素及其控制措施[J].中国奶牛,2010,2:27-29. TIAN S Q,FAN Y P.Influencing factors of somatic cell count and its control measures[J].Chinese Dairy Cattle,2010,2:27-29.(in Chinese)
[17] POLLOTT G E.Deconstructing milk yield and composition during lactation using biologically based lactation models[J].Journal of Dairy Science,2004,87(8):2375-2387.
[18] 韩丽云,金亚东,赵国丽,等.体细胞数对牛奶品质及产量的影响[J].畜牧与兽医,2017,49(4):6-11. HAN L Y,JIN Y D,ZHAO G L,et al.Effects of somatic cell count on milk quality and milk yield in dairy cows[J].Animal Husbandry and Veterinary Medicine,2017,49(4):6-11.(in Chinese)
[19] 张梦华,王爱芳,黄锡霞,等.非遗传因素对中国荷斯坦牛DHI测定指标的影响[J].家畜生态学报,2015,36(6):35-39. ZHANG M H,WANG A F,HUANG X X,et al.Impact of non-genetic factors on DHI determination index of Chinese Holstein cows[J].Acta Ecologiae Animalis Domastici,2015,36(6):35-39.(in Chinese)
[20] 毛杰,王根林,余盼,等.上海地区荷斯坦奶牛体型性状、产奶性状和体细胞评分的遗传统计分析[J].南京农业大学学报,2015,38(4):650-655. MAO J,WANG G L,YU P,et al.Genetic and statistical analysis between type traits,milk production traits and somatic cell score of Holstein cattle in Shanghai[J].Journal of Nanjing Agricultural University,2015,38(4):650-655.(in Chinese)
[21] LITWIŃCZUK Z,KRÓL J,BRODZIAK A,et al.Changes of protein content and its fractions in bovine milk from different breeds subject to somatic cell count[J].Journal of Dairy Science,2011,94(2):684-691.
[22] 马裴裴,俞英,张沅,等.中国荷斯坦牛SCC变化规律及其与产奶性状之间的关系[J].畜牧兽医学报,2010,41(12):1529-1535. MA P P,YU Y,ZHANG Y,et al.The distribution of SCC and its correlation with milk production traits in Chinese Holsteins[J].Acta Veterinaria Et Zootechnica Sinica,2010,41(12):1529-1535.(in Chinese)
[23] 王芳,胡松华.体细胞含量与牛奶质量的关系[J].中国奶牛,2005,4:51-52. WANG F,HU S H.Relationship between somatic cell content and milk quality[J].Chinese Dairy Cattle,2005,4:51-52.(in Chinese)
[24] 李跃,董文俊,马燕芬,等.体细胞数对奶成分的影响及影响体细胞数的因素[J].饲料研究,2010,3:61-63. LI Y,DONG W J,MA Y F,et al.Effect of somatic cell number on milk composition and factors affecting somatic cell number[J]. Feed Research,2010,3:61-63.(in Chinese)
[25] 吴海涛,杨章平,常玲玲,等.浅探牛乳中体细胞数的变化规律及其对乳成分的影响[J].上海畜牧兽医通讯,2011,1:4-6. WU H T,YANG Z P,CHANG L L,et al.Study on the change of somatic cell number in milk and its effect on milk composition[J].Shanghai Journal of Animal Husbandry and Veterinary Medicine,2011,1:4-6.(in Chinese)
[26] HARMON R J.Symposium:Mastitis and genetic evaluation for somatic cell count[J].Dairy Science,1994,77:2103-2112.
[27] MA Y,RYAN C,BARBANO D M,et al.Effects of somatic cell count on quality and shelf-life of pasteurized fluid milk[J].Journal of Dairy Science,2000,83(2):264-274.
[28] 周亚平,刘琴,施开平,等.乳体细胞数与产奶量、乳成分的关系研究[J].中国奶牛,2011,4:40-42. ZHOU Y P,LIU Q,SHI K P,et al.Study on the relationship between the number of somatic cells and milk yield and milk composition[J].China Dairy Cattle,2011,4:40-42.(in Chinese)
[29] 毛永江,杨章平,王杏龙,等.南方地区荷斯坦牛乳中体细胞数及乳房性状与泌乳性能相关性的研究[J].中国奶牛,2002,2:12-13. MAO Y J,YANG Z P,WANG X L,et al.The relationship among milking traits and udder traits SCC in milk for Chinese Holstein in South[J]. China Dairy Cattle,2002,2:12-13.(in Chinese)
[30] DOSOGNE H,VANGROENWEGHE F,MEHRZAD J,et al.Differential leukocyte count method for bovine low somatic cell count milk[J].Journal of Dairy Science,2003,86(3):828-834.
[31] SANTOS M V,MA Y,BARBANO D M.Effect of somatic cell count on proteolysis and lipolysis in pasteurized fluid milk during shelf-life storage[J].Journal of Dairy Science,2003,86(8):2491-2503.
[32] 汪湛,窦红,赵康.奶牛体细胞评分与乳成分及季节的关系[J].中国奶牛,2012,18:51-52. WANG Z,DOU H,ZHAO K.Relationship between somatic cell score and milk composition and season in dairy cows[J].Chinese Dairy Cow,2012,18:51-52.(in Chinese)