Some Productive Performance of Egyptian Dairy Buffaloes In Relation to The Reproductive Status

The objective of this present study was to detect the effect of the reproductive status of female dairy buffaloes on some milk production parameters. The study was carried out from the period of ist January 2014 till the end of January 2015. A total number of 252 female dairy buffaloes (aged 3year and 10 months – 7.5 years) of different parities were kept free (loose housing) in partially sheltered yard during day and night all over the year at dairy herd of El- Tawfik dairy farm which locate at Salheia city- sharkeya governorate. The results were indicated that the day interval milk (DIM) at lactation period was 263.12 for buffaloes reared at free range system, Milk yield kg / week (50.13) and lactation to date milk (kg) (1841.90) with mean pregnancy period reached 295.07. there were appositive value of correlation between lactation to date milk to milk yield kg / week and day milk interval at free rang system, high positive value of correlation to lactation to date milk and day milk interval , But with negative a value of correlation by pregnancy period, Day milk interval with positive value of correlation lactation to date milk and milk yield kg / week , But with negative value of correlation by pregnancy period, a positive value of correlation between number of birth to lactation to date milk , day milk interval and pregnancy period , while there was a negative value of correlation between number of birth to reproductive status . It could conclude that evaluation of reproductive and dairy performance of buffaloes is essential for economic farming selection in buffaoes industry, To increase lactation persistency in addition to total production without occurrence reproduction failure.