Prediction of Mastitis Incidence in Goat from Somatic Cell in Milk

Abstract

The research was carried out in the animal field of the Al-Kafeel Station / Al-Abbas’s (p) Holy Shrine in Karbala Governorate (15 km south of Karbala city ) 200 local goats were used from the first of December 2020 to the first of May 2021, The chemical analysis of milk components was also carried out in the laboratory of the Abu Ghraib Dairy Laboratory, in order to, study the prediction of mastitis infection through the content of milk from somatic cells and the relationship of the California test score (CMT) with mastitis and the main milk components results showed a significant effect (P≤0.01) of the production cycle sequence on the number of somatic cells in milk, as the goats in the fourth production cycle or more recorded a maximum number (1377.56 × 10 3 cells/ml milk) compared to their counterparts in cycles 1, 2, 3. There was a significant effect (P<0.01) for the milk production stage on the number of somatic cells in the milk, it was found that the number of somatic cells was highest at the beginning of the production stage (1298.37 × 10 3 cells/ml of milk) and the lowest at the end of the production stage (1125.31 × 103 cells/ml milk). There is a significant difference (P≤0.05) in the number of somatic cells in milk according to the level of milk production, as it reached in the milk of mothers who gave less than 500 kg/season 1368.01×10 3 cells/ml of milk. There was a significant effect of the condition of the cow (Uninfected or infected with mastitis) on the number of somatic cells, as it was high in goats infected with mastitis, (1493.54 × 10 3 cells/ml) compared to Uninfected goats (1493.54 × 10 3 cells/ml of milk). There is a positive and highly significant correlation (P≤0.01) between the California test score and mastitis infection, with a coefficient of 0.78, which reflects the possibility of early prediction of mastitis infection by measuring the milk content of somatic cells, and this will lead to take the necessary administrative measures for the procedures Preventive and healthy to reduce injury and improve resistance in the herd. There is a negative and significant correlation coefficient (P≤0.01) between the milk content of somatic cells through CMT test and the percentage of both fat and protein and significantly (P≤0.05) with lactose, which amounted to - 0.74, -0.59 and -0.27, respectively.