Adaptation and performance of feedlot lambs fed crud glycerin

• Grant number: 15/04595-4
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): October 01, 2015
• Effective date (End): February 28, 2018
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal researcher: Jane Maria Bertocco Ezequiel
• Grantee: Marco Túlio Costa Almeida
• Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated scholarship(s): 16/07572-8 - New research techniques in sheep production, BE.EP.DR

Abstract

Two trials will be conducted to evaluate the effects of glycerol (crude glycerin) in diets of feedlot as ingredient able to reduce nutritional metabolic disorders in total or partial replacement of corn. In experiment 1, we will analyze the adptation period, performance and feeding behavior. Sixty three lambs will be used (½ Santa Inês × ½ Dorper), which will be divided by weight in a complete randomized block design and subjected to four experimental diets containing 0, 10, 20, or 30% crude glycerin, on dry matter. During adaptation period, 15 animals will be slaughtered (3 at the beginning and 12 after the adaptation, 3 per treatment) to evaluate the rumen health and morphometry of papillaes. The other animals (n = 48) will remain in feedlot until they gain 35 kg BW and then slaughtered for evaluation of carcasses, rumen health and the morphometry of papillaes. In the second trial, eight sheep fitted with permanent rumen cannulas will be used, which will serve as donors of rumen fluid for "in vitro" production of greenhouse gases, pH, SCFA, NH3-N, digestibility, as well as for incubations on the occasion of ruminal degradability trial. The data from the first trial will be assessed linear and quadratic effects of the inclusion of crude glycerin and the contrast between the control treatment × treatments crude glycerin. In experiment 2, the data will be evaluated on Latin square 4 × 4 and repeated measures will be used. In all trials, the MIXED procedure of SAS statistical software will be used considering a significance of 5% and a tendency of 10%. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ALMEIDA, MARCO T. C.; EZEQUIEL, JANE M. B.; PASCHOALOTO, JOSIMARI R.; PEREZ, HENRIQUE L.; CARVALHO, VANESSA B.; CASTRO FILHO, EDIVILSON S.; VAN CLEEF, ERIC H. C. B. Rumen and liver measurements of lambs fed with high inclusions of crude glycerin in adaptation and finishing period of feedlot. Small Ruminant Research, v. 167, p. 1-5, DEC 2018. Web of Science Citations: 1.

BRANCO VAN CLEEF, ERIC HAYDT CASTELLO; COSTA ALMEIDA, MARCO TULIO; PEREZ, HENRIQUE LEAL; PASCHOALOTO, JOSIMARI REGINA; CASTRO FILHO, EDIVILSON SILVA; BERTOCCO EZEQUIEL, JANE MARIA. Effects of partial or total replacement of corn cracked grain with high concentrations of crude glycerin on rumen metabolism of crossbred sheep. Small Ruminant Research, v. 159, p. 45-51, FEB 2018. Web of Science Citations: 2.

COSTA ALMEIDA, MARCO TULIO; BERTOCCO EZEQUIEL, JANE MARIA; PASCHOALOTO, JOSIMARI REGINA; PEREZ, HENRIQUE LEAL; DE CARVALHO, VANESSA BARBOSA; CASTRO FILHO, EDIVILSON SILVA; CASTELLO BRANCO VAN CLEEF, ERIC HAYDT. Effects of high concentrations of crude glycerin in diets for feedlot lambs: feeding behaviour, growth performance, carcass and non-carcass traits. ANIMAL PRODUCTION SCIENCE, v. 58, n. 7, p. 1271-1278, 2018. Web of Science Citations: 3.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

ALMEIDA, Marco Túlio Costa. Adaptation and performance of feedlot lambs fed crude glycerin. 2018. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.