STUDIES ON FRIESIAN CATTLE IN EGYPT I.ENVIRONMENTAL FACTORS AFFECTING MILK PRODUCTION | ||||
Journal of Animal and Poultry Production | ||||
Article 3, Volume 25, Issue 10, October 2000, Page 6095-6104 PDF (480.06 K) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jappmu.2000.259807 | ||||
View on SCiNiTO | ||||
Authors | ||||
F. H. H. Farrag,1; A. S. A. El-Barbary2; M. F. Abdel-Glil2; K. Hussein3 | ||||
1Dept. of Animal production, Fac. of Agric., Mansoura Univ., Mansoura Egypt. | ||||
2Dept . of Animal production and Fish, Fac. of Agric .Alexandria Univ. Alexandria, Egypt. | ||||
3Dept. of Animal breeding, Animal production Research Institute, Ministry of Agriculture, Egypt. | ||||
Abstract | ||||
Total of 1797 records of 765 cows raised in El-Shazly private farm . located in Shobratana – Basyon , Gharbia , Governorate were collected during period from 1985 to 1993 to study the effect of some environmental factors on milk production of Friesian Cattle . The result obtained could be summarized in the following . Parity had non- significant effect on all traits study except the effect on 90 days cumulative milk yield was highly significant (P< 0.01) .Year of calving and significant ( P< 0.01 ) effect on different studied traits . Season of calving had highly significant (P< 0.01) effect on cumulative 90 and 180 days milk yield, and only significant (P< 0.01) effect on total milk yield , lactation period and on the five method used for estimating persistency of lactation .But it is had non significant effect on both 305 and 270 days milk yield . | ||||
Statistics Article View: 34 PDF Download: 134 |
||||