KeLiNowsrr, J. eNo CHavr,z, E. R. 1984. Effect of low dietary zinc during late gestation and early lactation on the sow and neonatal piglets. Can. J. Anim. Twelve pregnant sows were fed semi-purified diets containing either l3 or 63 mg/ kg zinc (Zn). The animals were fed the diets during the last 4 wk of pregnancy (2 kg/day) and the two first weeks of lactation (ad libitum).
Rev Inv Vet Perú 2012; 23 (2): 160-170Evaluación de suplementos con plantas medicinales en pollos broiler ABSTRACT The effect of adding oregano (Origanum vulgare) essential oil and dry ginger (Zingiber officinale) in the diet on body weight gain, feed intake and feed conversion rate was evaluated in 624 male Cobb 500 broiler chicks randomly assigned into four treatments with four replicates of 39 chicks each. Intestine and liver samples from four broilers per treatment were collected at day 14 and two at day 42 after treatment to determine possible histological toxic alterations and to determine the intestinal histomorphometry of jejunum. The treatments were: APC, Bacitracin methylene disalicylate (1 kg/MT of feed) and colistine sulfate 8% (0.25 kg/MT); SPC, without growth promoter; AEO, oregano essential oil (1 kg /MT); and JD, dryy ginger (10 kg/MT). There was no statistical difference between groups in body weight gain, feed intake and feed conversion rate. Group AEO showed slightly larger villi but without statistical differences with other groups. All birds showed alterations in jejunum and liver. It is concluded that the use of AEO and JD as growth promoter did not improved productive performance probably due to the low health challenge.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.