SILVA. J. L. O.; http://lattes.cnpq.br/1603039452748862; SILVA, João Lamark de Oliveira.
Resumo:
Mastitis prevalence subclinical in dairy sheep in county Uiraúna - State of Paraíba.The objective of this study present a literature review on bovine mastitis and present a study
of the incidence of subclinical mastitis in dairy cattle in the city of Uiraúna - PB. Mastitis is
an inflammation of the mammary gland caused by microorganisms and their toxins, physical
trauma or chemical agents. Mastitis can be classified as infectious or environmental and as the
form of manifestation in clinical and subclinical mastitis. About 80% of the losses in milk
production is due to subclinical mastitis, where the affected mammary quarter have lower
milk production rate compared to the healthy mammary quarter. Subclinical mastitis is to
cause various microorganisms which the most important are Streptococcus agalactiae,
Streptococcus dysgalactiae,Staphylococcus aureus,Corynebacterium bovis e Mycoplasma
bovis. O most widely used diagnostic method for detecting the increase in somatic cells in
milk, seen in subclinical mastitis, is the California Mastitis Tests. Subclinical mastitis should
be treated the drying period. Prevention is the key to the control of mastitis in herds, using a
suitable milking management, proper disinfection of milking equipment and control of
environmental contamination.Proper nutritional management with adequate diet balance plays
an important role in the prevention of subclinical mastitis with increased immunity cons cows
infections. In the experimental study of the municipality of Uiraúna - CP 216 animals that
were submitted to the CMT 82% (176/216) were negative and 18% (40/216) positive. The
incidence of low rate of subclinical mastitis in animals was attributed to the use of the calf
during milking for 90% (18/20) of the properties that were the subject of the study due to the
fact of saliva contain antimicrobial substances. In 55% (11/20) of positive properties was
obtained a mean value of 13.75% of infected animals. In 54% (6/11) of the positive properties
the percentage of animals reagents to CMT exceeded 15%, satisfactory to the number of
animals with subclinical mastitis in a property. In all the properties flaws were identified in
the milking. The largest subclinical mastitis rates were identified in properties with
mechanized milking without suckling calves, due to hygiene failures improper maintenance of
utensils and milking. During the study it was observed that the producers were unaware of
subclinical mastitis, the losses associated with this disease and their relationship with the
occurrence of clinical mastitis, but most of the milkers, even where they were the owners, not
showed receptive to the establishment of hygienic milking practices. You must intense
educational work of producers to deploy in their properties hygienic milking practices.