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Investigating the relationship between protein-fat difference and milk yield and somatic cell counts of Iraninan Holstein dairy cows

Published online by Cambridge University Press:  23 November 2017

Behnam Saremi ,
Jalil Ghaseminejad  and
Javad Eslami
Behnam Saremi*
Affiliation:
Animal Science Department, Education center of Jihad-e Agriculture (Khorasan-e Razavi), Agricultural Research and Education Organization, Mashhad, Khorasan, Iran
Jalil Ghaseminejad
Affiliation:
Animal Science Department of Agricultural and Natural Resources University of Gorgan, Gorgan, Golestan, Iran
Javad Eslami
Affiliation:
Animal Science Department of Zabol University, Zabol, Systan and Balouchestan, Iran
*
Email:[email protected]
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Extract

Milk quality control is one of the most important management tools used on dairy farms. Periodic recording and accurate analysis of data is needed. Management decisions and genetic evaluations are based on these data (Miglior, 2002; Wiggans, 1985). Good nutrition management is important for economical production (improvedmilk yield and protein% and fat%) and health of animals (Schroeder, 1996). It is possible to evaluate the management system and nutrition program in a herd according to the protein% and fat% of milk. Cows that produce low milk with high fat are generally weak or have a low DMI. Low milk fat is caused by metabolic disorders or unbalanced feed composition. Low milk protein is due to lack of energy in diet (JafariKhorshidi, K. and J. Soltaniha. 1382). The aim of this study was to investigate the effects of protein % to fat % difference on milk production of Holstein dairy cows.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 184
Copyright
Copyright © The British Society of Animal Science 2007

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References

JafariKhorshidi, K. and Soltaniha, J. 1382. Dairy cattle nutrition. Cultural Education Press.Google Scholar
Miglior, F. 2002. Management of milk recording in herd with the automatic milking system (AMS). Canadian Dairy Network.Google Scholar
Schroeder, J. W. 1996. Feeding for milk components and profit. Extension Dairy Specialist.Google Scholar
Wiggans, G. R. 1985. Procedures for calculating lactation record.Google Scholar
Naserian, A.A. and Bashtani, M. and Foroughi, A.R. 2002. Guidelines of dairy cattle nutrition. Banafsheh Press. Iran.Google Scholar