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pre-puberty mastitis vaccine?
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<blockquote data-quote="Lucky_P" data-source="post: 735127" data-attributes="member: 12607"><p>Doubtful that the mastitis vaccines that are available for use in dairy cattle are gonna help you much, if at all.</p><p>Staph aureus vaccines are used in herds that have a problem with coagulase+ Staph mastitis, and while they don't necessarily prevent infection, they do help diminish the increased somatic cell counts(SCC) that mastitic cows have - and help keep bulk milk SCC below the 'cut-off' level, where the milk processor will refuse to take the milk.</p><p>The E.coli J-5 vaccine is used to minimize death loss due to coliform mastitis - those cows that contract coliform mastitis 'crash and burn' - they may be fine at one milking, and near death before the next one. It's a milking management and environmental problem, but vaccination may make economic sense in a dairy setting.</p><p></p><p>Neither of these problems are likely to be the cause of pre-pubertal mastitis in heifers; those cases may be due to another heifer sucking - or sometimes self-sucking, or due to horn flies feeding/biting on teat ends and introducing bacteria (probably not coag+ Staph or coliforms) into the teat canal.</p><p></p><p>I had one first-calf heifer calve out with one 'blind' quarter this year, but she's done a good job with her calf, and she'll get to stay.</p><p>Had a 5-yr old cow with one big, ugly front teat -very different from the other three - calve out last spring, and when I got her up to milk that thing out, it turned out that it was the only teat that didn't have a teat canal completely filled with scar tissue. Never could get the calf to suck that big ugly thing. Fortunately for him, we had another cow lose a calf to scours about the same time, and we grafted him onto the other cow and sent the one-titted cow to the salebarn - where I instructed the folks that she was to go for slaughter only.</p><p>Sometimes things just happen. I don't think vaccinating for mastitis is gonna help you; I wouldn't do it in my beef herd.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 735127, member: 12607"] Doubtful that the mastitis vaccines that are available for use in dairy cattle are gonna help you much, if at all. Staph aureus vaccines are used in herds that have a problem with coagulase+ Staph mastitis, and while they don't necessarily prevent infection, they do help diminish the increased somatic cell counts(SCC) that mastitic cows have - and help keep bulk milk SCC below the 'cut-off' level, where the milk processor will refuse to take the milk. The E.coli J-5 vaccine is used to minimize death loss due to coliform mastitis - those cows that contract coliform mastitis 'crash and burn' - they may be fine at one milking, and near death before the next one. It's a milking management and environmental problem, but vaccination may make economic sense in a dairy setting. Neither of these problems are likely to be the cause of pre-pubertal mastitis in heifers; those cases may be due to another heifer sucking - or sometimes self-sucking, or due to horn flies feeding/biting on teat ends and introducing bacteria (probably not coag+ Staph or coliforms) into the teat canal. I had one first-calf heifer calve out with one 'blind' quarter this year, but she's done a good job with her calf, and she'll get to stay. Had a 5-yr old cow with one big, ugly front teat -very different from the other three - calve out last spring, and when I got her up to milk that thing out, it turned out that it was the only teat that didn't have a teat canal completely filled with scar tissue. Never could get the calf to suck that big ugly thing. Fortunately for him, we had another cow lose a calf to scours about the same time, and we grafted him onto the other cow and sent the one-titted cow to the salebarn - where I instructed the folks that she was to go for slaughter only. Sometimes things just happen. I don't think vaccinating for mastitis is gonna help you; I wouldn't do it in my beef herd. [/QUOTE]
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