TY - JOUR ID - 1701 TI - Effect of systemic antibacterial administration during prepartum period on coagulase negative Staphylococcal intramammary infection in Holstein Heifers JO - Iranian Journal of Veterinary Research JA - IJVR LA - en SN - 1728-1997 AU - Ataee, O. AU - Hovareshti, P. AU - Bolourchi, M. AU - Barin, A. AU - Gerami, A. AU - Niasari-Naslaji, A. AD - Department of Clinical Sciences, Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Karaj, Iran AD - Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran AD - School of Mathematics, Statistics and Computer Sciences, University of Tehran, Tehran, Iran Y1 - 2009 PY - 2009 VL - 10 IS - 3 SP - 255 EP - 259 KW - Heifer mastitis KW - Coagulase negative Staphylococcal KW - Systemic antibacterial administration DO - 10.22099/ijvr.2009.1701 N2 - A total of 183 coagulase negative Staphylococcal infected quarters and 64 uninfected quarters were randomly allotted to 4 experimental groups: infected quarters that did not receive any treatment (positive control group; n = 60); infected quarters that received Tylosin (n = 61) or Cefquinome (n = 62) and also uninfected quarters that did not receive any treatment were considered as negative control group (n = 64). Treated heifers received Tylosin or Cefquinome 10 to 14 days before the expected calving date. The bacteriological cure rate based on sampling obtained 3 days after calving was significantly higher (P<0.01) in mammary glands treated with systemic Tylosin (85.3%) than in the positive control group and mammary glands treated with systemic Cefquinome (69.4%). At the same time Tylosin treated heifers had significantly lower (P<0.01) somatic cell count scores compared to the positive control and Cefquinome groups. With the exception of one heifer that calved 8 days earlier than the expected calving date, there was no detectable antibiotic residues in the milk of the treated heifers on the 3rd day of lactation. UR - https://ijvr.shirazu.ac.ir/article_1701.html L1 - https://ijvr.shirazu.ac.ir/article_1701_2328e51e0dcdf8a7abd9e21d4fdcd29e.pdf ER -