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Effects of isochronal induced feed restriction during the transition period on mRNA abundance of the hepatic genes related to lipid metabolism in fat-tailed ewes.
Hasanpour, Zahra; Zarrin, Mousa; Oryan, Ahmad; Mohaghegh-Dolatabad, Mostafa; Ahmadpour, Amir.
Affiliation
  • Hasanpour Z; Department of Animal Science, Faculty of Agriculture, Yasouj University, Student Street, Yasouj, 75918-74831, Iran.
  • Zarrin M; Department of Animal Science, Faculty of Agriculture, Yasouj University, Student Street, Yasouj, 75918-74831, Iran. m.zarrin@yu.ac.ir.
  • Oryan A; Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
  • Mohaghegh-Dolatabad M; Department of Animal Science, Faculty of Agriculture, Yasouj University, Student Street, Yasouj, 75918-74831, Iran.
  • Ahmadpour A; Department of Animal Science, Faculty of Agriculture, Yasouj University, Student Street, Yasouj, 75918-74831, Iran.
Trop Anim Health Prod ; 54(5): 273, 2022 Sep 06.
Article in En | MEDLINE | ID: mdl-36066756
ABSTRACT
The process of fat mobilization during the transition period (TP) requires deep re-orchestration of the energy indices, and understanding its mechanism has generated considerable interest among the TP-related studies. The present study aims to validate the effect of feed restriction and TP on the mRNA abundance of hepatic genes related to fat metabolism in fat-tailed sheep. Twenty pregnant ewes with the age of 40.8 ± 6.2 (mean ± standard error) month were randomly assigned to control (n = 10) or restriction (n = 10), and investigated from week - 5 to 5 relative to parturition. Control animals received 100% DM during the trial. Restriction animals received 100% DM through weeks - 5, - 1, 1 and 5 and were fed with 50, 65, and 80% DM in the weeks - 4, - 3, - 2 and 2, 3, and 4, respectively. On the third week of experiment (65%) during both pre- and post-partum, the hepatic tissue was biopsied, and the mRNA load of the fatty acid synthase, acetyl-CoA carboxylase, carnitine palmitoyltransferase (CPT) 1, CPT2, and acyl-CoA synthase long-chain family member-1 genes was quantified by the TaqMan qPCR technique. Data were analyzed using the mixed model procedure of SAS. The mRNA abundance of the target genes was not influenced by feed restriction, during the pre- and post-partum periods. Parturition suppressed the mRNA abundance of target genes in both groups. It can be concluded that the fat-tailed sheep are well adapted to feed scarcity in the harsh environment and would have a higher capacity for the metabolism of fat mobilization during the negative energy balance.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Lipid Metabolism / Liver Limits: Animals Language: En Journal: Trop Anim Health Prod Year: 2022 Document type: Article Affiliation country: Iran

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Lipid Metabolism / Liver Limits: Animals Language: En Journal: Trop Anim Health Prod Year: 2022 Document type: Article Affiliation country: Iran