CLINICAL, BACTERIOLOGICAL ,AND LABORATORY STUDY FOR CASES OF MASTITIS IN AWASSI AND HAMDANI EWES | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 6, Issue 4, September 2014, Pages 291-305 | ||
| Abstract | ||
| ABSTRACT : 400 milk samples were collected from 100 Awassi and 100 Hamdani ewes from many farms in Mosul city from both left and right sides of udders, in order to detect cases of mastitis and the prevalence of its bacterial etiological agents . Six percent of Awassi ewes and 9% of Hamdani ewes were infected with clinical type of mastitis at one side of udder which were characterized by swelling and redness of udder , changes in colour and consistency of milk with appearance of pain at palpation of udder and fever.Also, subclinical mastitis cases were detected by modified whiteside test and calculating somatic cells in milk samples .The tests showed that 21% of Awassi ewes and 24% of Hamdani ewes were infected with subclinical cases of mastitis . The results of milk samples analysis with Eko-milk analyzer revealed a significant decrease in protein , fat , lactose , and density in milk samples of animals which were infected with clinical and subclinical cases of mastitis , while it was observed that there was a significant increase in pH level and electrical conductivity of milk samples which were infected with clinical and subclinical cases of mastitis . Many bacterial species were isolated from milk samples of infected ewes, and Staphylococcus aureus was the major causative agent of clinical mastitis in Awassi ewes (50%) and Hamdani ewes (44.4%) , and for subclinical mastitis cases , the major causative agent was Eschrechia coli (28.5%) in Awassi ewes and Staphylococcus xylosus (25%) in Hamdani ewes .This study revealed that Hamdani ewes were more susceptible for cases of mastitis than Awassi ewes , and the old ages of ewes were more susceptible for cases of mastitis than younger ages of ewes . | ||
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