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Merlim FA, Silva Sobrinho AG, Borghi TH, Cirne LGA, Valença RL, Almeida FA, Endo V, Viegas CR, Zeola NMBL. Crude glycerin is an efficient alternative to corn in the diet of feedlot lambs. Arch Anim Breed 2021; 64:387-393. [PMID: 34584940 PMCID: PMC8461556 DOI: 10.5194/aab-64-387-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 08/19/2021] [Indexed: 11/12/2022] Open
Abstract
The objective of this study was to evaluate the intake, digestibility,
nitrogen balance, and performance of feedlot lambs fed diets containing crude
glycerin. A total of 30 Ile de France lambs were confined to individual pens at an
average age of 45 d: 15.1 kg initial body weight and 32.2 kg
final body weight. The animals were distributed in a completely randomized
design and fed three diets containing fresh sugarcane as forage (50 %)
and concentrate (50 %), with or without the inclusion of 100 and
200 g vegetable crude glycerin per kilogram dry matter (DM)
replacing corn. Dietary glycerin inclusion reduced the intake of ether
extract (P<0.001) and total carbohydrates (P=0.048) as well as the apparent
digestibility of ether extract (P<0.001), but it had no effect on the intake
and digestibility of the other nutrients nor on lamb performance. The apparent
nitrogen balance of lambs on the three diets was positive. Although it does
not affect the intake and digestibility of most nutrients, the inclusion of
100 and 200 gkg-1DM of crude glycerin in the diet tends
to worsen lamb performance, indicating that the ideal level of inclusion
should be below 100 gkg-1DM of crude glycerin.
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Affiliation(s)
- Fernada Almeida Merlim
- Department of Animal Science, São Paulo State University, Jaboticabal, São Paulo, 14884-900, Brazil
| | | | - Thiago Henrique Borghi
- Department of Animal Science, São Paulo State University, Jaboticabal, São Paulo, 14884-900, Brazil
| | - Luís Gabriel Alves Cirne
- Institute of Biodiversity and Forestry, Federal University of Western Pará, Santarém, Pará, 68035-110, Brazil
| | - Roberta Lima Valença
- Department of Animal Science, São Paulo State University, Jaboticabal, São Paulo, 14884-900, Brazil
| | - Fabiana Alves Almeida
- Department of Animal Science, São Paulo State University, Jaboticabal, São Paulo, 14884-900, Brazil
| | - Viviane Endo
- Department of Animal Science, São Paulo State University, Jaboticabal, São Paulo, 14884-900, Brazil
| | - Carlos Renato Viegas
- Department of Animal Science, São Paulo State University, Jaboticabal, São Paulo, 14884-900, Brazil
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