Effects of plane of nutrition and selenium supply during gestation on ewe and neonatal offspring performance, body composition, and serum selenium

Journal of Animal Science
A M MeyerJoel S Caton

Abstract

To investigate the effects of nutritional plane and Se supply during gestation on ewe and offspring performance and body composition, 84 Rambouillet ewe lambs (age = 240 +/- 17 d, BW = 52.1 +/- 6.2 kg) were allocated to a 2 x 3 x 2 factorial arrangement of treatments. Factors included Se [adequate Se (ASe, 11.5 microg/kg of BW) or high Se (HSe, 77.0 microg/kg of BW)] initiated at breeding, nutritional plane [60% (restricted, RES), 100% (control, CON), or 140% (high, HIH) of NRC requirements] initiated at d 40 of gestation, and physiological stage at necropsy [3 to 24 h postpartum or d 20 of lactation]. Ewes were fed and housed individually in a temperature-controlled facility. At parturition, all lambs were removed and artificially reared until necropsy on d 20.6 +/- 0.9 of age. Ewes assigned to the treatment at d 20 of lactation were transitioned to a common diet meeting lactation requirements and were mechanically milked. From d 95 of gestation through parturition and d 20 of lactation, ewe BW and BCS were least (P <or= 0.01) in the RES treatment, intermediate in the CON treatment, and greatest in the HIH treatment. Ewes fed HSe had a greater (P <or= 0.05) BCS increase than those fed ASe during mid- and late gestation. During...Continue Reading

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Citations

Jun 15, 2013·Animal : an International Journal of Animal Bioscience·C O LemleyK A Vonnahme
Apr 20, 2012·Reproduction : the Official Journal of the Society for the Study of Fertility·Leticia E CamachoKimberly A Vonnahme
Sep 27, 2014·Biological Trace Element Research·Kathryn J HooperJean A Hall
Dec 14, 2011·Molecular and Cellular Endocrinology·Lawrence P Reynolds, Joel S Caton
Mar 17, 2015·Journal of Animal Science and Biotechnology·Anita M Oberbauer
Dec 2, 2011·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Caleb O LemleyKimberly A Vonnahme
Sep 8, 2020·Journal of Animal Science·Everton D SartoriJúlio O J Barcellos
May 28, 2019·Antioxidants·Athanasios C PappasStella E Chadio
Jul 7, 2012·Journal of Animal Science·W C StewartJ A Hall
Oct 7, 2015·Journal of Animal Science·J A CoverdaleK W Walter
May 20, 2019·The Veterinary Clinics of North America. Food Animal Practice·Lawrence P ReynoldsAlison K Ward

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