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Abstract

Factors associated with foot abscess were evaluated in a cohort of 3,322 suckling pigs reared on a woven-wire floor (wire diameter, 0.5 cm; size of openings, 1 × 3.8 cm). In bivariate analysis, foot abscess was significantly (P < 0.05) associated with post-partum sow illness, number of pigs born alive, and parity, but not with birthweight (P = 0.31) or time spent on wire flooring (P = 0.89). One oxytetracycline treatment (100 mg, im) at birth or 1 treatment at birth and a second 5 to 7 days later reduced (P < 0.05) the risk of lesions by about half. Multivariate analyses indicated that pigs in large litters (> 10 pigs at birth) born to sows with postpartum illnesses had an increased risk (relative risk [rr], 3.77) of developing foot abscess, compared with pigs in small litters (≤ 10 pigs) born to unaffected sows. For sows without evidence of postpartum illness, pigs in large litters had a slightly increased risk (rr, 1.32) of developing foot abscess, compared with pigs in small litters. Pigs born to multiparous sows also had an increased risk (rr, 1.69) of developing foot abscess, compared with pigs born to primiparous sows. Similar risk estimates were obtained when logistic regression models included location farrowed (crate number) as fixed effect, and when litter was a random effect in a logistic-binomial regression.

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in Journal of the American Veterinary Medical Association

compared with respective distributions among the total population of nonhypertriglyceridemic camelids by use of a χ 2 test. Age was classified into categories for analysis (neonates, ≤ 7 days; juveniles, 8 days to 2 years; breeding age adults, 3 to 9 years

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in Journal of the American Veterinary Medical Association

, Greenough A , Nicholson GP , Rafferty GF . Resistance of pediatric and neonatal endotracheal tubes: influence of flow rate, size, and shape . Crit Care Med. 2000 ; 28 ( 5 ): 1595 – 1598 . 10834718 9. Stenqvist O , Sonander H , Nilsson

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in Journal of the American Veterinary Medical Association

in neonates . Am J Clin Nutr. 2000 ; 72 ( 3 ): 751 – 757 . 10.1093/ajcn/72.3.751 7964123 22. Hay G , Johnston C , Whitelaw A , Trygg K , Refsum H . Folate and cobalamin status in relation to breastfeeding and weaning in healthy

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in Journal of the American Veterinary Medical Association