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Colostrum IgG Absorption: What Slowing the Gut Did
Slowing the gut before a calf’s first drink changed colostrum IgG absorption more than most people would guess. Calves given 0.4 mg/kg hyoscine N-butylbromide 15 to 30 minutes before colostrum reached 48 h serum IgG of 3,243 +/- 794 mg/dL, against 2,175 +/- 1,150 mg/dL in controls that got nothing, at p = 0.034. Serum Brix shifted the same direction at p = 0.002. Total protein, GGT and glucose did not separate. One farm, 18 calves, and no direct measurement of gut transit, so read the effect size as a first estimate. Why newborn calves start with no antibodies A cow’s placenta is synepitheliochorial, and six tissue layers stand between…
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Meloxicam for newborn calves: dose at birth, not surgery
Meloxicam for newborn calves is a postnatal adaptation treatment, not a surgical analgesic. In a 151-calf placebo-controlled trial, one subcutaneous dose of 0.5 mg/kg given within minutes of delivery produced higher vitality scores at 24 and 48 hours, with the gain concentrated in calves born with obstetric assistance. It did not correct perinatal acidosis. Why meloxicam is filed under the wrong job Most farms keep meloxicam wherever the disbudding iron lives. Castration, dehorning, lameness, anything that happens in a chute: the drug goes on the list, and in many markets the label reads the same way. That placement is a habit, not a pharmacology. Parturition is an inflammatory event in…
