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Articles by K. Nofouzi
Total Records ( 2 ) for K. Nofouzi
  R. Asadpour , H. Tayefi-Nasrabadi , G.A. Moghadam and K. Nofouzi
  This study was conducted to determine the levels and relationship between Lacto Peroxidase (LP) activity and somatic cell count (SCC) for diagnosis subclinical mastitis in early lactation of dairy cows. Foremilk samples were obtained from quarters of 80 cows (August 2007 up to February 2008). Any cows had not evidence of clinical mastitis at time of sampling. The SCC ranged from 5.24105 cells/mL in the first parity to 5.5105 in the third parity with a mean value of 5.45105. The mean LP activity in first, second and third parity were found 6.49, 4.63 U and 5.5 U mL 1, respectively. No significant correlation (r = 0, p>0.05) was found between number of SCC and LP values in early lactation. Since, the measurement of LP activity of milk may not be used as a predictor subclinical mastitis in the early lactation period of dairy cows.
  R. Asadpour , H. Tayefi-Nasrabadi , G.A. Moghadam and K. Nofouzi
  Association between values for the Somatic Cell Count (SCC) and intramammary infection (IMI) were studied in 80 dairy cows from dairy herd in Iran during the first 5-15 days post calving. Samples were cultured for bacterial presence and were tested for SCC. Intramammary infection was defined as the presence of one or two bacterial species in milk samples taken within 5-15 day postcalving. Prevalence of IMI was large; 65% of milk samples were infected. Approximately 30% of the cows classified as infected with Coagulase-negative Staphylococci (CNS) and S. aureus had the pathogen identified on 5-15 days post calving. Streptococcus agalactia accounted for 10% of the IMI. Remaining IMI were by other pathogeneses among which Escherichia coli, Proteus sp., Klebsiella sp. Arcanobacter pyogenes. All milk samples from dairy cows in early lactation had SCC ranged from 5.24105 cells mL 1 in the first parity to 5.5105 in the third parity with a mean value of 5.45105. No significant differences were observed (p>0.05) in SCC values between parities. Also, no significant differences were found (p>0.05) between SCC values and infections. Thus, these testing strategies may not be ideal for making decisions about individual animals, such as identifying individual cow with S. aureus for segregated milking.
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