Influence of lipid sources on digestibility, degradability, methane production, ruminal microbiota and finishing of beef steers on pasture

• Grant number: 09/07314-5
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): September 01, 2009
• Effective date (End): August 31, 2012
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal researcher: Telma Teresinha Berchielli
• Grantee: Isabela Pena Carvalho de Carvalho
• Home Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The increase on energy density in a diet, through lipid supplementation is a nutritional strategy that can be used in cattle fattening, performing satisfactory results. The objective in this trial will be evaluate the effects of different lipid sources on performance, intake, digestibility, carcass characteristics, microbial populations, ruminal fermentation and enteric methane production in nelore steers, from rearing to finishing phase in grazing systems. The lipid sources will be selected from an in vitro assay (experiment 1) where six sources will be tested: soybean oil, linseed oil, sunflower oil, palm oil, soy bean grain and megalac-E, from the six sources, four will be used in experiments in vivo. The experiment 2, rearing of animals, will be developed from May/2009 to March/2010. Ninety animals will be used, divided into 10 paddocks (two replicates of paddocks) receiving supplementation of 0.5% body weight during the dry and rainy seasons, distributed on a randomized block design with repeated measures over time (months of the year) with 16 replications. In April/2010 45 of these animals will be finished on pasture (experiment 3) receiving the same sources of supplemental fat. In both phase (rearing and finishing) will be evaluated the performance and methane production, by the end of finishing phase the carcass characteristics will be evaluated. Five animals, fitted with ruminal canullae, will be allocated in a Latin square for evaluations of ruminal variables, microbial population and fiber degradation.

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)

CARVALHO DE CARVALHO, ISABELA PENA; FLORENTINE, GIOVANI; CASTAGNINO, PABLO DE SOUZA; DE JESUS, RAPHAEL BARBETTA; MESSANA, JULIANA DUARTE; GRANJA-SALCEDO, YURY TATIANA; DETRNANN, EDENIO; PADMANABHA, JAGADISH; MCSWEENEY, CHRISTOPHER S.; BERCHIELLI, TELMA TERESINHA. Supplementation with lipid sources alters the ruminal fermentation and duodenal flow of fatty acids in grazing Nellore steers. ANIMAL FEED SCIENCE AND TECHNOLOGY, v. 227, p. 142-153, MAY 2017. Web of Science Citations: 7.

CARVALHO, ISABELA P. C.; FIORENTINI, GIOVANI; LAGEA, JOSIANE F.; MESSANA, JULIANA D.; CANESIN, ROBERTA C.; ROSSI, LUIS G.; REISA, RICARDO A.; BERCHIELLI, TELMA T. Fatty acid profile, carcass traits and meat quality of Nellore steers following supplementation with various lipid sources. ANIMAL PRODUCTION SCIENCE, v. 57, n. 6, p. 1170-1178, 2017. Web of Science Citations: 1.

CARVALHO DE CARVALHO, ISABELA PENA; FIORENTINI, GIOVANI; BERNDT, ALEXANDRE; CASTAGNINO, PABLO DE SOUZA; MESSANA, JULIANA DUARTE; SHIRAISHI FRIGHETTO, ROSA TOYOKO; REIS, RICARDO ANDRADE; BERCHIELLI, TELMA TERESINHA. Performance and methane emissions of Nellore steers grazing tropical pasture supplemented with lipid sources. REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE, v. 45, n. 12, p. 760-767, DEC 2016. Web of Science Citations: 4.