Bruna Moreira Maioli , Mariana Gudrun Ribeiro , Amanda de Carvalho , Leticia Aline Gonçalves , Daniela Lázara de Almeida , André Luis do Valle de Zoppa , Paulo Roberto Leme , João Alberto Negrão , Sarita Bonagurio Gallo
{"title":"Nutrition of lambs with chromium propionate and its effects on metabolism, performance and meat quality","authors":"Bruna Moreira Maioli , Mariana Gudrun Ribeiro , Amanda de Carvalho , Leticia Aline Gonçalves , Daniela Lázara de Almeida , André Luis do Valle de Zoppa , Paulo Roberto Leme , João Alberto Negrão , Sarita Bonagurio Gallo","doi":"10.1016/j.smallrumres.2024.107306","DOIUrl":null,"url":null,"abstract":"<div><p>This study aimed to evaluate the effects of two additional doses of chromium propionate on performance, carcass characteristics and meat quality, bone density and metabolites. A total of 29 uncastrated male lambs were divided into 3 treatments: CTL, no chromium added; Cr0.5, 0.5 mg/kg of DM; and Cr1.5, 1.5 mg/kg of DM. The experimental period lasted for 64 days during which blood samples were taken for biochemical analysis, the animals were weighed for performance evaluation, and individual and daily feed consumption were monitored. At slaughter, data were collected to evaluate carcass and meat characteristics, viscera, and femur weight for bone density. The experimental design was completely randomized with means compared by the Tukey test at 5 % probability. The inclusion of chromium propionate increased dry matter intake (<em>P</em><0.0001), decreased feed efficiency (<em>P</em>=0.0002), and increased Cr concentration in the meat (<em>P</em>=0.0341). The cholesterol (<em>P</em>=0.0023) and phosphorus (<em>P</em>=0.0213) were lower in Cr0.5, and alkaline phosphatase decreased linearly (<em>P</em>=0.0274). Cr improved the parameters of total leukocytes (<em>P</em>=0.0126), lymphocytes (<em>P</em>=0.0476), and monocytes (<em>P</em> = 0.0058). No effect of Cr was observed on carcass characteristics, commercial cuts, meat quality, viscera, and femur density. Supplementation with 0.5 mg of chromium propionate positively affected the immune system of lambs in feedlots, increasing the amount of chromium in the meat. However, above this amount may reduce dry matter intake and feed efficiency.</p></div>","PeriodicalId":21758,"journal":{"name":"Small Ruminant Research","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small Ruminant Research","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921448824001123","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AGRICULTURE, DAIRY & ANIMAL SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
This study aimed to evaluate the effects of two additional doses of chromium propionate on performance, carcass characteristics and meat quality, bone density and metabolites. A total of 29 uncastrated male lambs were divided into 3 treatments: CTL, no chromium added; Cr0.5, 0.5 mg/kg of DM; and Cr1.5, 1.5 mg/kg of DM. The experimental period lasted for 64 days during which blood samples were taken for biochemical analysis, the animals were weighed for performance evaluation, and individual and daily feed consumption were monitored. At slaughter, data were collected to evaluate carcass and meat characteristics, viscera, and femur weight for bone density. The experimental design was completely randomized with means compared by the Tukey test at 5 % probability. The inclusion of chromium propionate increased dry matter intake (P<0.0001), decreased feed efficiency (P=0.0002), and increased Cr concentration in the meat (P=0.0341). The cholesterol (P=0.0023) and phosphorus (P=0.0213) were lower in Cr0.5, and alkaline phosphatase decreased linearly (P=0.0274). Cr improved the parameters of total leukocytes (P=0.0126), lymphocytes (P=0.0476), and monocytes (P = 0.0058). No effect of Cr was observed on carcass characteristics, commercial cuts, meat quality, viscera, and femur density. Supplementation with 0.5 mg of chromium propionate positively affected the immune system of lambs in feedlots, increasing the amount of chromium in the meat. However, above this amount may reduce dry matter intake and feed efficiency.
期刊介绍:
Small Ruminant Research publishes original, basic and applied research articles, technical notes, and review articles on research relating to goats, sheep, deer, the New World camelids llama, alpaca, vicuna and guanaco, and the Old World camels.
Topics covered include nutrition, physiology, anatomy, genetics, microbiology, ethology, product technology, socio-economics, management, sustainability and environment, veterinary medicine and husbandry engineering.