Frequency distribution of mastitogens as affected by post milking teat dipping and Staphylococcus aureus vaccination in Sahiwal cows
2008
Bilal, M.Q. (University of Agriculture, Faisalabad (Pakistan). Dept. of Livestock Management) | Muhammad, A.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Livestock Management) | Younas, M. (University of Agriculture, Faisalabad (Pakistan). Dept. of Livestock Management) | Muhammad, G. (University of Agriculture, Faisalabad (Pakistan). Dept. of Clinical Medicine and Surgery)
This study was undertaken at Livestock Experiment Station, Dept. of Livestock Management, University of Agriculture, Faisalabad, Pakistan with an aim to determine the effect of post milking teat dipping + Staphylococcus aureus vaccination on the frequency distribution of mastitogens in Sahiwal cows. For this purpose, 20 lactating Sahiwal cows apparently free from mastitis were selected from livestock Experiment Station herd where no mastitis control program was in practice. Treatments were C=control; D=Post milking teat dipping only; V=Staphylococcus aureus vaccination only and DV=Teat dipping plus Staphylococcus vaccination. An iodophore (Germ IODTM, Cenavisa S. A., Laboratories Distributed in Pakistan by Fair International Trading Co., Karachi, Pakistan) was used as a teat dip @ 150ml /litre of water for a study period of 12 weeks. Staphylococcus aureus vaccine prepared by Dept. of Clinical Medicine & Surgery University of Agriculture Faisalabad. Pakistan was administrated I/m @ 5 ml/animal. Study results indicated that Staphylococcus aureus (70%) was most prevalent followed by Streptococcus agalactiae (13.33%) and mixed infection (3.33%). However, among minor pathogen, coagulase negative staphylococci (10%) were the most prevalent pathogens followed by bacillus Spp. (3.33%) but none of the micrococci, diphtheroids and yeast was found. On overall basis, the number of quarters affected by mastitogens decreased from 9 to 2 (77.7% reduction ), 8 to 6 (25% reduction) and 6 to 2 (66.6% reduction) due to teat dipping only, vaccination only and teat dipping plus vaccination, respectively. However in control cows, number of quarter positive for intra mammary infection increased from 7 to 12 (71.10% increase).
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Эту запись предоставил National Agricultural Research Centre