1. Dietary L-arginine supplementation increased mammary gland vascularity of lactating sows
- Author
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D.M. Holanda, C.S. Marcolla, S.E.F. Guimarães, M.M. Neves, G.J. Hausman, M.S. Duarte, M.L.T. Abreu, and A. Saraiva
- Subjects
functional amino acid ,gene expression ,histology ,lactation ,oxidative stress ,Animal culture ,SF1-1100 - Abstract
The present study aimed to evaluate the mechanisms modulated by dietary arginine supplementation to sows during lactation regarding antioxidant capacity and vascularization of mammary glands. At 109 days of gestation, animals were transferred to individual farrowing crates equipped with manual feeders and automatic drinker bowls. Environmental temperature and humidity inside the farrowing rooms were registered every 15 min. At farrowing, sows were assigned in a completely randomized design to a control diet (CON) or the CON diet supplemented with 1.0% L-arginine (ARG). A total of three gilts and two sows were fed the CON diet, whereas three gilts and three sows were fed ARG diets. Sows were fed a fixed amount of 6.0 kg/day, subdivided equally in four delivery times (0700, 1000, 1300 and 1600 h) for 21 days. At weaning, sows were slaughtered and mammary tissue samples and blood from the pudendal vein were collected. Data were analyzed considering each sow as an experimental unit. Differences were considered at P
- Published
- 2019
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