上海地区季节变化对奶牛产奶性能影响的研究

›› 2008, Vol. 1 ›› Issue (8): 70-73.

• 奶业专栏 • Previous Articles Next Articles

Effect of Seasonal Changes on Milk Yield for Lactation Cow in Shanghai District

WANG Jian-ping1,2,3, WANG Jia-qi1, BU Deng-pan1, HUO Xiao-kai1,4, GUO Tong-jun1,4, LIANG Jian-guang5, WANG Guang-wen5, YUAN Yao-ming5, LI Fa-di2

1.Institute of Animal Science, Chinese Acedemy Agricultural Sciences, Beijing 100193, China; 2.Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China; 3.College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China;4.Department of Science and Biology, College of Agronomy, Xinjiang Agriculture University, Urumqi 830052, China; 5.Shanghai Brightholstan Co Ltd, Shanghai 200072, China

Received:1900-01-01 Revised:1900-01-01 Online:2008-08-20 Published:2008-08-20

Abstract

Abstract: The objective of this study was to investigate the effect of seasonal changes on milk yield in Shanghai district. The seventeen thousand two hundred and eighty four milk yield records were analyzed. The milk yield of cows calved in December, January and February was higher, but lower in July, August, September and October and the lowest in September. The milk yield of cows by nature month was significant lower in July, August, September and October than others and there was no difference among the others. The milk yield is lower down from 2, 3, 4, 1, 5, 6, 7, 8, 9, 10 to >10 months according to postcalve month. It showed that the seasonal changes can affect milk yield significantly and should make goals and management way by difference season. The DHI records should contain the information of season.

Key words: season; lactation cow; milk yield

CLC Number:

S811.1

WANG Jian-ping;;WANG Jia-qi;BU Deng-pan;HUO Xiao-kai;GUO Tong-jun;LIANG Jian-guang;WANG Guang-wen;YUAN Yao-ming;LI Fa-di. Effect of Seasonal Changes on Milk Yield for Lactation Cow in Shanghai District[J]. , 2008, 1(8): 70-73.

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Effect of Seasonal Changes on Milk Yield for Lactation Cow in Shanghai District

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