University of Khartoum

Mastitis, In Dairy Cows And It’s Economic Implications In The River Nile State ( Sudan)

Mastitis, In Dairy Cows And It’s Economic Implications In The River Nile State ( Sudan)

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Title: Mastitis, In Dairy Cows And It’s Economic Implications In The River Nile State ( Sudan)
Author: MAHMOUD, ISAM
Abstract: This study was conducted in River Nile State to investigate, the prevalence of mastitis in dairy cows and the economical implication of bovine mastitis, through the reduction in milk yield, milk dumped after antibiotic treatment and the costof drugs and other costs inferred with mastitis. California mastitis test was performed in dairy farms to identify the infected quarters. The result revealed that about 87.5% of herd individuals were mastitic. The bacteria isolated from milk samples were staphylococci, streptococci, micrococci; coliform bacteria together with mycotic infection. The economical implication of mastitis was evaluated through the calculation of milk yield reduction. Reduction, which represented 67.2% from the total loss, had been assessed through the direct and indirect estimation of somatic cell count. It represented more than 12% of milk yield for one infected quarter. Also the reduction percentage had been assessed through comparison between infected and healthy quarter for the same cow. The reduction percentage of one infected quarters was about 12.5%. The reduction as average was 14.2% (234kg /cow/season). The milk reduction cost was 27325 Sudanese Dinars. The discarded milk due to treatment with antibiotic was 14.5% of the total loss, withtotal cost 5670 S.D. Drug cost was estimated as 5167 SD(13.2%.). Veterinary services cost 2000Sudanese Dinnars. Represented 5.1 % of total financial loss. The total financial loss was estimated as 30252 SD per cow/year. Cows were investigated to confirm the effect of mastitis on milk yield. The average of total and daily milk yield had been adopted. The V results showed irregularity in average of total and daily milk yield for the mastitic cows comparedto healthy ones. The effect of mastitis on milk yield was confirmed statistically and. The milk yield curve verified the differences in milk yield between mastitic and healthy cows.
Description: 101page
URI: http://khartoumspace.uofk.edu/handle/123456789/8781
Date: 2015-04-09


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