ALTERNATIVE STRATEGIES IN THE MANAGEMENT OF HEIFERS’ MASTITIS
Journal Title: Revista MVZ Cordoba - Year 2009, Vol 14, Issue 1
Abstract
Mastitis in dairy heifers is a problem that has reached remarkable importance since the development of highly specialized dairy operations. The bovine female is susceptible to intramammary infections (IMI) from the moment at which the mammary gland is completely developed in the fetus. A number of features, from individual-based variability to environmental and managerial practices can increase or decreased the risk to acquire IMI. The bacteria most commonly associated with IMI are coagulase negative Staphylococcus (CNS), however, other pathogens including Staphylococus aureus, Mycoplasma spp, Streptococcus uberis y Streptococcus agalactiae, are also ethiological agents of IMI. Management alternatives for mastitis in dairy heifers are aimed towards the reduction of risk factors, and are complemented by the inclusion of teat sealants, disinfectants, and antibiotics, in addition to a prior evaluation of herd health programs in each dairy farm.
Authors and Affiliations
Genaro A. Contreras, M. Sc| Michigan State University, College of Veterinary Medicine, Large Animal Clinical Sciences, VMC G385, Michigan State University, East Lansing, MI 48823 USA .
Estimation of genetic and phenotypic parameters for production traits in Holstein and Jersey from Colombia
Objective. Determine the genetic and phenotypic parameters for milk yield, fat percentage, protein percentage and somatic cell score. Materials and methods. 18134 lactation records were used to Holstein and 1377 lactatio...
Analysis of agricultural projects funded by Colciencias during 2010
Objective. Identify and analyze the science, technology and innovation projects of the agricultural and livestock sector, funded by Colciencias during 2010. Materials and methods. The registration database of Colcienci...
Nutrient absorption in lambs fed diets containing different amounts of phosphorus
Objective. Evaluate the effect of increasing P intake on nutrient digestibility, and compare the true and apparent absorption coefficients of P and Ca in lambs. Materials and methods. Twenty-four Santa Ines sheep, with a...
Behavior of Murrah buffaloes under influence of strangers in the milk parlor during milk control
Objective. The study was carried out in two farms, located in São Sebastião do Passé, Bahia, Brazil, during the three first months of lactation of 81 female buffaloes, to observe if stranger people at milk parlor could a...
PUBERTY AND SCROTAL CIRCUMFERENCE IN HOLSTEIN x ZEBU, ZEBU AND ROMOSINUANO BULLS
Objetive. To establish the relationship of puberty and scrotal circunference in holstein x Zebú, Zebu and romosinuano bullls. Materials and methods. Eight male F1 Holstein x Zebu (HxC), 8 Zebu and 10 Romosinuano starti...