Mastitis Control Program: Effect on Milk Production
نویسندگان
چکیده
منابع مشابه
Effect of recombinant bovine somatotropin on milk production and composition of cows with Streptococcus uberis mastitis.
The protective effect of bovine somatotropin (bST) during experimental Streptococcus uberis mastitis in cows was studied. The left quarters of 10 cows were infected with 500 cfu of S. uberis O140J. Five cows were subcutaneously treated with 500 mg of recombinant bST 7 d before and after infection, and 5 control cows received the excipient. In the treated cows, total milk production significantl...
متن کاملEffect of mastitis on milk perchlorate concentrations in dairy cows.
Recent surveys have identified the presence of perchlorate, a natural compound and environmental contaminant, in forages and dairy milk. The ingestion of perchlorate is of concern because of its ability to competitively inhibit iodide uptake by the thyroid and to impair synthesis of thyroid hormones. A recent study established that milk perchlorate concentrations in cattle highly correlate with...
متن کاملEffect of mastitis on raw milk compositional quality
In this study, we investigated the impact of mastitis infection on the quality of milk composition in small-scale dairy bovine herds. The purpose of this study was to find a milk quality somatic cell count (SCC) standard that could be used as an integral component of a control program. In all, 396 quarter milk samples from lactating cross-bred cows (Holstein & Zebu) were analyzed; 56% of these ...
متن کاملOn-farm Milk Culturing and Mastitis
Over the years, many methods of milk culturing have been employed to provide information regarding mastitis prevention, treatment, and control. In general, these efforts have centered on culturing in a laboratory located at a university, milk processor, or veterinary clinic. Products available on the market and efforts required to culture milk on the farm have, in general, been unsuccessful for...
متن کاملThe effect of subclinical mastitis on milk composition in dairy cows
Milk samples were collected from quarters of 35 cows with subclinical mastitis (California mastitis test [CMT] positive and somatic cell counts [SCC] >500,000 cells/ml in individual quarter foremilk), as well as from 37 healthy controls. Compared to the levels observed in milk from healthy quarters, milk from quarters with subclinical mastitis showed elevated sodium (91.97 vs 52.93 mg/dl), chlo...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1972
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(72)85658-3