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Seasonal changes in milk yield and fat content in Holstein dairy herds of Khorasan province

Published online by Cambridge University Press:  23 November 2017

Behnam Saremi  and
Mehdi Khosrojerdi
Behnam Saremi*
Affiliation:
Animal Science Department, Education center of Jihad-e Agriculture (Khorasan-e Razavi), Agricultural Research and Education Organization, PO Box: 91875-149, Mashhad, Khorasan, Iran
Mehdi Khosrojerdi
Affiliation:
Animal Science Department, Education center of Jihad-e Agriculture (Khorasan-e Razavi), Agricultural Research and Education Organization, PO Box: 91875-149, Mashhad, Khorasan, Iran
*
Email:behsa2001@yahoo.com
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Extract

Variation in milk production is depended on different factors including: temperature, humidity and day length, which are changing at different months of year (Saremi et al., 2003, Naerian et al., 2003). Dairy industry sustain loss or make profit according to amount of milk production or ingredients during year (Barbano et al., 1991). Traditional Bazaar and dairy industry are influenced by milk processing technology so that increased shelf time of products and whole milk and its products having the opportunity to distribute more effective (Erba et al., 1996). Seasonal changes in milk production leads to more processing of milk and changes in total solids of milk, which can influence price of milk (Stephenson et al., 1989). This study designed to investigate seasonal changes in milk production and its fat content in addition to investigating these changes between years (1988-2003).

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 149
Copyright
Copyright © The British Society of Animal Science 2007

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References

Saremi, B., Tahmasbi, R., and Naserian, A.A. 2003. Season of calving and parity’s effects on milk production and reproductive factors in Holstein dairy cattle. Proceeding of 2003 ASAS/ADSA Midwestern Conference. P. 67.Google Scholar
Naserian, A.A., Sarami, B., and Alizadeh, A.R. 2003. Investigating effects of ambient temperature and day length on milk production of first lactation Iranian Holstein heifers. Journal Dairy Science. Vol. 86:56–57.Google Scholar
Barbano, D., Hurst, S. and Aplin, R. 1991. Factors influencing cost and profitability of cheese and whey product manufacture. Page 53 in Proc. Cheese Res. Technol. Conf., Madison, WI. March 6–7, 1991. Univ. Wisconsin, Madison.Google Scholar
Erba, E. M., and Aplin, R. D. 1996. Factors affecting labor productivity and cost per gallon in fluid milk plants. Journal Dairy Science. 79:1304.Google Scholar
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