000126412 001__ 126412
000126412 005__ 20241125101137.0
000126412 0247_ $$2doi$$a10.1016/j.rvsc.2023.04.002
000126412 0248_ $$2sideral$$a133820
000126412 037__ $$aART-2023-133820
000126412 041__ $$aeng
000126412 100__ $$aOrquera-Arguero, K. G.
000126412 245__ $$aBeef cows' performance and metabolic response to short nutritional challenges in different months of lactation
000126412 260__ $$c2023
000126412 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126412 5203_ $$aLactating cows can react to changes in nutrient availability with a range of behavioural and physiological mechanisms, which may differ among lactation stages. We investigated the effects of short feed restriction and refeeding periods on beef cows' performance and metabolic status in different months of lactation. For this, Parda de Montaña beef cows [n = 31; 626 ± 47.7 kg body weight (BW)] were subjected to short nutritional restriction and refeeding cycles, which were repeated in months 2, 3 and 4 of lactation. Each month, cows were consecutively fed a diet to meet 100% of their energy and protein requirements during a 4-day basal period, 55% during a 4-day restriction period, and again 100% during a 4-day refeeding period. The performance (energy balance, BW, milk yield and composition) and plasma metabolite concentrations (glucose, non-esterified fatty acids (NEFA), β-hydroxybutyrate (BHB), urea and malondialdehyde) were measured daily. Most of the traits were significantly affected by the interaction between feeding period and lactation month. Feed restriction induced milk yield loss, decreased milk protein and increased milk urea contents to different extents. The plasma NEFA concentrations rose with restriction in months 2, 3 and 4 but BHB and urea concentrations increased only in month 4. Most of these metabolites lowered to basal values during refeeding. These results suggest that beef cows use different adaptation strategies to cope with nutritional challenges as lactation advances, body fat mobilisation predominates in early lactation and protein catabolism prevails at later stages.
000126412 536__ $$9info:eu-repo/grantAgreement/EC/H2020/727213/EU/Genomic management Tools to Optimise Resilience and Efficiency/GenTORE$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 727213-GenTORE
000126412 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000126412 590__ $$a2.2$$b2023
000126412 592__ $$a0.617$$b2023
000126412 591__ $$aVETERINARY SCIENCES$$b32 / 167 = 0.192$$c2023$$dQ1$$eT1
000126412 593__ $$aVeterinary (miscellaneous)$$c2023$$dQ1
000126412 594__ $$a4.4$$b2023
000126412 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126412 700__ $$0(orcid)0000-0003-3943-5311$$aCasasús, I.
000126412 700__ $$aFerrer, J.
000126412 700__ $$0(orcid)0000-0003-3875-4935$$aBlanco, M.
000126412 773__ $$g159 (2023), 26-34$$pRes. Vet. Sci.$$tRESEARCH IN VETERINARY SCIENCE$$x0034-5288
000126412 8564_ $$s2078591$$uhttps://zaguan.unizar.es/record/126412/files/texto_completo.pdf$$yVersión publicada
000126412 8564_ $$s2678731$$uhttps://zaguan.unizar.es/record/126412/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126412 909CO $$ooai:zaguan.unizar.es:126412$$particulos$$pdriver
000126412 951__ $$a2024-11-22-12:01:10
000126412 980__ $$aARTICLE