الفهرس | Only 14 pages are availabe for public view |
Abstract In this study we collected 205 mastitic milk samples from dairy farm and random field samples in Menofia governates for investigation the most prevalent causes of mastitis. The reported results from this survey revealed that Staphylococcus. aureus was most isolated pathogens as it founded 37 isolates (19.5%) and all Streptococcus species 39 isolates (21.95%), E.coli 33 (17.4%), fungi 30 isolates (14.34%), and mixed bacterial infection 51 isolates (26.9%). The Streptococcus species including S.agalactia 18 isolates (9.5%), S.dysglactia 13 isolates (6.8%), and S.ubris 8 isolates (4.2%), from total isolates founded. While mixed bacterial infections including Staphylococcus aureus & E.coli 22 isolates (11.6%), Staphylococcus aureue & Streptococcus agalactia 15 isolates (7.9%), Streptococcus uberis & E.coli 14 isolates (7.4%). While fungus isolates from cases of clinical mastitis only that not response to treatment by antibiotics and the isolates including Candid albicans 8 isolates (4.2%), Candida. Tropicalis 3 isolates (1.6%), Asperagillus fumigatus 10 isolates (5.26%), and Aspergillus flavus 9 isolates (4.7%), form all mastitic isolates we were founded. We found that there was a relationship between somatic cell count and mastitis incidence as high somatic cell count appear in subclinical mastitis ranged from 200,000 – 500,000 cell/ml of milk and very highly somatic cell count in clinical mastitis cases ranged from 500,000 – 2,000,000 cell/ ml of milk, so somatic cell count can be used as indicators for detection of subclinical mastitis. |