Mahmoud Ibrahim Al-Mohamed ^(1)*

(1). Animal Production, Faculty of Agricultural Engineering, University of Aleppo, Aleppo, Syria.

(*Corresponding author: Dr. Mahmoud Ibrahim Al-Mohamed. E-Mail:

Mahmoud.lb.Almohamed@gmail.com)

Received  10/05 /2024                 Accepted  14/ 07/2024

Abstract: 

It is generally assumed that high levels of somatic cell count SCC reduce milk production and quality. However, the relationship between SCC and reproductive indicators in cows must also be taken into account. Therefore, this research was conducted at the Jeb Ramla Cattle Station and the Faculty of Agricultural Engineering at the University of Aleppo on 46 Holstein Friesian cows. with the aim of studying the effect of the level of somatic cell counts on Services per conception, Estrus rate, Calving interval, Duration of pregnancy, and the weight of the calf at birth. The data was analyzed using the spss26 program. The results showed a highly significant effect of the level of somatic cell counts in the milk on Services per conception, Estrus rate, Calving interval, Duration of pregnancy, and the weight of the calf at birth. Cows with a low level of somatic cell counts had the best values for all indicators studied. There was also a negative and highly significant correlation between the level of somatic cell counts and the weight of the calf at birth, the duration of pregnancy, Estrus rate. while the correlation was positive and highly significant between the level of somatic cell counts and the Services per conception, Calving interval.

Key words: somatic cell counts, SCC, Services per conception, Estrus rate, Calving interval, Duration of pregnancy.
 Full paper in Arabic: PDF