Productive, Physiological and Biochemical Changes in Imported and Locally Born Friesian and Holstein Lactating Cows under Hot Summer Conditions of Egypt

Author： Marai I.F.M.  

Publisher： Springer Publishing Company

ISSN： 0049-4747

Source： Tropical Animal Health and Production, Vol.31, Iss.4, 1999-08, pp. : 233-243

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