Carcass characteristics and meat quality of lambs fed high concentrations of crude glycerin in low-starch diets

Meat Science
V B CarvalhoJ M B Ezequiel

Abstract

In this study, we evaluated the effects of total corn replacement with crude glycerin on carcass characteristics and meat quality of feedlot lambs fed high-concentrate diets with low starch. Forty non-castrated Santa Ines lambs (23.5 ± 3.56 kg BW) were assigned to a randomized complete block design with five dietary treatments: 0%, 7.5%, 15%, 22.5%, or 30% crude glycerin, replacing corn. Animals were slaughtered at a BW of 38 kg after 72 ± 20 days. The addition of up to 30% crude glycerin reduced carcass weight and yield (P ≤ 0.02). Odd-chain fatty acids, oleic, palmitoleic, total unsaturated, and monounsaturated fatty acids were increased (P ≤ 0.01) while CLA tended to increase in glycerin-fed lambs (P = 0.06). Crude glycerin decreased stearic, palmitic, transvaccenic, total saturated fatty acids, and atherogenicity index (P < 0.01). High concentrations of crude glycerin in low-starch diets reduced carcass weights, nevertheless improved meat quality by increasing unsaturated and odd-chain fatty acid contents.

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Citations

Oct 8, 2016·Tropical Animal Health and Production·Janaina Barros LuzFrancisco Fernando Ramos de Carvalho
Apr 24, 2019·Asian-Australasian Journal of Animal Sciences·Caio Alves da CostaAndreza Guedes de Oliveira Nascimento
Jan 29, 2021·Translational Animal Science·Maria Carolina G ArrudaJane M B Ezequiel
Mar 7, 2021·Animals : an Open Access Journal From MDPI·Sladjana RakitaLuciano Pinotti
Mar 14, 2021·Animal : an International Journal of Animal Bioscience·V V S AlmeidaD M Lima
Feb 11, 2021·Tropical Animal Health and Production·Lara Maria Santos BrantL C Leite
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Valeria PasciuFiammetta Berlinguer

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