DIAGNOSIS AND PREVENTION OF HYPOVITAMINOSES IN LAYING HENS
Khamrokulov N.Sh.J. ErgashevEshburiev S.B.Samarkand State University of Veterinary Medicine, Livestock and biotechnologies
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Аннотация
The article describes the causes of hypovitaminosis in laying hens, early diagnosis, egg productivity and the results of studying the effectiveness of drugs in prevention.
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