Evaluation of Milk in a Healthy Goat : A case study

Abstract

Goat is an important livestock in the livestock sector of Bangladesh. Goat milk contributes a significant role for meeting the demands of milk for smallholder farmers and households which rear goats for milk. But intramammary infections cause hamper in milk production and also possess public health risk. This study aimed to evaluate the health condition of udder of an apparently healthy goat and also evaluate the microbiological quality of the milk obtained from the goat. Milk was collected aseptically from each quarter separately and evaluated separately using different methods like Somatic Cell Count, California Mastitis Test (CMT) and Microbiological evaluation by Total Bacterial Count (TBC) and isolation of bacteria in Blood agar, EMB agar and MacConkey agar culture media. The somatic cell count was 115,000 ml-1 for left quarter and 60,000 ml-1 for right quarter. CMT score was N(negative), somatic cell range 0- 200,000 for both quarters. Total bacterial count (TBC) for left quarter was 9,455 CFU ml-1 and for right quarter was 4,455 CFU ml-1 . Growth of Escherichia coli and Salmonella sp. was absent on EMB agar and MacConkey agar surface. There was no evidence of intramammary infection in the goat and the milk was free from contamination and free from risk of public health