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  • ThesisItemOpen Access
    Low milk fat syndrome in crossbred dairy cows
    (Department of Clinical Medicine, College of Veterinary and Animal Sciences, Mannuthy, 1997) Sivaraman, S; KAU; Alex, P C
    The epidemiology, haematological and and biochemical changes in blood and pattern of rumen fermentation in low milk fat syndrome cows were studied. Ten cases (below 3.5% milk fat) and six control animals (above 3.5% milk fat) were investigated. Rumen liquor, blood and composite milk samples were collected on three occasions viz. 30th, 60th, and 90th day of lactation and selected parameters were studied. There was no significant difference in the physical characters, pH, SAT, MBRT protozoal motility and protozoal count of rumen liquor. Significant reduction in the rumen total volatile fatty acid and the acetic : propionic ratio (A:P) was noticed in the low milk fat group. Significant decrease in acetic acid and increase in propionic acid was observed in the low milk fat group. There was no significant difference in haemoglobin, haematocrit, and TEC between the control and low milk fat groups. No significant difference was noticed in the serum triglycerides, cholesterol and glucose level between the control and low milk fat groups.
  • ThesisItemOpen Access
    Dry-cow therapy for control of mastitis in cow
    (Department of Preventive Medicine, College of Veterinary and Animal Sciences, Mannuthy, 1994) Pradeepkumar, P R; KAU; Baby, K
    Efficacy of dry – cow therapy with benzathine cloxacillin (500 mg) and procaine penicillin (100,000 IU) plus furaltadone (500 mg) in preventing intramammary infections and clinical and subclinical mastitis during the dry period and first three months of lactation were studied. Both the treatments were significantly effective in controlling intramammary infections during the dry period but, not during the subsequent lactation. Although there was an apparent reduction in subclinical mastitis during lactation in animals treated with benzathine cloxacillin, there was no significant difference between incidences of clinical and subclinical mastitis in treated and untreated groups. Gentamicin and chloramphenicol were found to be the most effective antibiotics against gram – positive organisms isolated from cases of mastitis and oxytetracycline the least effective. Intramammary infections with staphylococci are better controlled by benzathine cloxacillin as against streptococcus which is better controlled by penicillin plus furaltadone.