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Worming calves- Maybe a ques. for Lucky P
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<blockquote data-quote="Lucky_P" data-source="post: 1648096" data-attributes="member: 12607"><p>It depends...</p><p>For most of the important nematode parasites of ruminants, they have to ingest infective larvae that crawl/swim up the moisture(dew/rain) film on forages. Like this:</p><p>[ATTACH=full]410[/ATTACH]</p><p></p><p>A 2-5 month old November to January-born calf on my farm would likely have been 'worm' free at 'turnout' in late March; a late Aug/September-born calf might, however, have some at 3 months... but without doing a fecal exam, you're just guessing.</p><p>2 week-olds? Pretty much a waste of dewormer... they're not likely to have picked up any worms by that age, and even if they had, they may not yet be at a stage that some dewormers will be effective on.</p><p></p><p>Dogs are not small cows. Their parasites are different.</p><p>Pups can be infected with rounds and hooks in utero - infective larvae in the bitch's tissues are reactivated and cross the placenta to infect the developing pups, and additionally, some of these larvae go to the mammary glands and are passed in the milk to increase infection after birth. So... pups should be dewormed early and often. </p><p>Calves not so much so.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1648096, member: 12607"] It depends... For most of the important nematode parasites of ruminants, they have to ingest infective larvae that crawl/swim up the moisture(dew/rain) film on forages. Like this: [ATTACH type="full" alt="1603114513794.png"]410[/ATTACH] A 2-5 month old November to January-born calf on my farm would likely have been 'worm' free at 'turnout' in late March; a late Aug/September-born calf might, however, have some at 3 months... but without doing a fecal exam, you're just guessing. 2 week-olds? Pretty much a waste of dewormer... they're not likely to have picked up any worms by that age, and even if they had, they may not yet be at a stage that some dewormers will be effective on. Dogs are not small cows. Their parasites are different. Pups can be infected with rounds and hooks in utero - infective larvae in the bitch's tissues are reactivated and cross the placenta to infect the developing pups, and additionally, some of these larvae go to the mammary glands and are passed in the milk to increase infection after birth. So... pups should be dewormed early and often. Calves not so much so. [/QUOTE]
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