Fitting of Changing Curves of Milk Yield and Milk Composition of Chinese Holstein Dairy Cows in Yangtze River Delta using Wood's Model

SUN Xianzhi, AN Pengpeng, GUO Mei, SUN Yongmei, JIN Ting, LIU Guanglei

doi:10.3969/j.issn.1006-267x.2018.06.016

2018 , Vol. 30 >Issue 6: 2136 - 2142

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.06.016

Molecular Nutrition

Fitting of Changing Curves of Milk Yield and Milk Composition of Chinese Holstein Dairy Cows in Yangtze River Delta using Wood's Model

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1. Shanghai Dairy Cow Breeding Center Co., Ltd., Shanghai 200436, China;
2. Guangming Animal Husbandry Co., Ltd., Shanghai 200436, China

Received date: 2017-11-06

Online published: 2018-06-20

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Abstract

This study aimed to fit the changing curves of milk yield, milk fat percentage, milk protein percentage and milk somatic cell score (SCS) of Chinese Holstein dairy cows in Yangtze river delta using Wood's model. Data at the amount of 104 368 was collected from ten medium or large size farms of Chinese Holstein dairy cows (first to third parities) in Yangtze river delta, and Wood's model was used to fit the changing curves of milk yield, milk fat percentage, milk protein percentage and milk somatic cell score. The results showed as follows:1) the curve of milk yield of Chinese Holstein dairy cows was the standard lactation curve, and the curves of milk fat percentage, milk protein percentage and milk SCS showed the reversed parabola shape. 2) The goodness of fit was above 0.98 for milk yield of different parities, then following with that of milk SCS of different parities, which was above 0.93, and the goodness of fit was above 0.92 for milk fat percentage of different parities. 3) The time of peak milk yield of the first and second parities was close to that reaching the lowest milk SCS, and the lowest milk fat percentage appeared relatively late. 4) The peak milk yield of the first parity (32.426 3 kg/d) was lower than that of the second and third parities, while the persistence of keeping high milk yield (4.98) and milk protein percentage (4.19) of the first parity was higher than those of the second and third parities. It can be concluded that Wood's model is suitable for fitting of curves of milk yield, milk fat percentage, milk protein percentage and milk SCS of Chinese Holstein dairy cows in Yangtze river delta.

Key words： Wood's model; milk yield; milk composition; somatic cell score; lactation curve; Chinese Holstein dairy cows in Yangtze river delta

Cite this article

SUN Xianzhi, AN Pengpeng, GUO Mei, SUN Yongmei, JIN Ting, LIU Guanglei . Fitting of Changing Curves of Milk Yield and Milk Composition of Chinese Holstein Dairy Cows in Yangtze River Delta using Wood's Model[J]. Chinese Journal of Animal Nutrition, 2018 , 30(6) : 2136 -2142 . DOI: 10.3969/j.issn.1006-267x.2018.06.016

References

[1] GAINES W L.Persistency of lactation in dairy cows[M].[S.l.]:[s.n.],1927.

[2] WOOD P D P.Algebraic model of the lactation curve in cattle[J].Nature,1967,216(5111):164-165.

[3] WILMINK J B M.Adjustment of test day milk,fat and protein yield for age,season and stage of lactation[J].Livestock Production Science,1987,16(4):335-348.

[4] NELDER J A.Inverse polynomials,a useful group of multifactor response fuctions[J].Biometrics,1966,22(1):128-141.

[5] ALI T E,SCHAEFFER L R.Accounting for covariance among test day milk yields in dairy cow[J].Canadian Journal of Animal Science,1987,67(3):637-644.

[6] DA CUNHA D D N F V,PEREIRA J C,CAMPOS O F,et al.Selection of models of lactation curves to use in milk production simulation systems[J].Revista Brasileira de Zootecnia,2010,39(4):891-902.

[7] MAREK J,RAJMON R,HALOUN T.Critical evaluation of seven lactation curve estimation models[C]//ABRAHAM A,JIANG X,SNÁŠEL V,et al.Intelligent data analysis and applications.Cham:Springer,2015:73-84.

[8] 赵智华,彭顺清,李凤翔,等.用Wood模型拟合四川地区黑白花奶牛泌乳曲线的研究[J].四川畜牧兽医,2000,27(1S):19-20.

[9] 毛永江,张亚琴,许兆君,等.中国荷斯坦牛泌乳曲线拟合研究[J].畜牧兽医学报,2011,42(9):1239-1248.

[10] 努尔比亚·吾布力,付雪峰,热西提·阿不都热依木,等.新疆农七师荷斯坦牛不同模型泌乳曲线拟合效果分析[J].中国奶牛,2012(17):19-22.

[11] POLOTT G E.Deconstructing milk yield and composition during lactation using biologically based lactation models[J].Journal of Dairy Science,2004,87(8):2375-2387.

[12] TORSHIZI M E.Effects of season and age at first calving on genetic and phenotypic characteristics of lactation curve parameters in Holstein cows[J].Journal of Animal Science and Technology,2016,58:8.

[13] OLORIA V E,BROTHERSTONEA S,HILLA W G,et al.Fit of standard models of the lactation curve to weekly records of milk production of cows in single herd[J].Livestock Production Science,1999,58(1):55-63.

[14] 毛永江,张美荣,许兆君,等.用Wood模型拟合南方中国荷斯坦牛产奶量、乳脂率、乳蛋白率和体细胞评分及其效果分析[J].畜牧兽医学报,2012,43(12):1904-1909.

[15] 熊本海,杨亮,杨琴,等.中国北方荷斯坦奶牛乳产量及乳成分变化的普适模型构建[J].畜牧兽医学报,2014,45(12):1939-1948.

[16] FRIGGENS N C,EMMANS G C,KYRIAZAKIS I,et al.Feed intake relative to stage of lactation for dairy cows consuming total mixed diets with a high or low ratio of concentrate to forage[J].Journal of Dairy Science,1998,81(8):2228-2239.

[17] 张美荣,廖想想,陈丹,等.产犊季节、胎次及牛场对荷斯坦牛泌乳性能的影响[J].中国牛业科学,2012,38(4):6-9.

[18] 罗清尧,熊本海,马毅,等.中国荷斯坦奶牛第二泌乳期泌乳曲线模型的研究[J].中国农业科学,2010,43(23):4910-4916.

[19] STERI R,CAPPIO-BORLINO A,MACCIOTTA N P P.Modelling extended lactation curves for milk production traits in Italian Holsteins[J].Italian Journal of Animal Science,2009,8(2S):165-167.

[20] GO?EBIEWSKI M,BRZOZOWSKI P,GO?EBIEWSKI L.Analysis of lactation curves,milk constituents,somatic cell count and urea in milk of cows by the mathematical model of Wood[J].Acta Veterinaria Brno,2011,80(1):73-80.

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