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Effects of energy-protein supplementation frequency on performance of primiparous grazing beef cows during pre and postpartum.

ABSTRACT: OBJECTIVE:Twenty-four pregnant Nellore primiparous grazing cows were used to evaluate the effects of energy-protein supplementation and supplementation frequency during pre (105 d before calving) and postpartum (105 d after calving) on performance and metabolic characteristics. METHODS:Experimental treatments consisted of a control (no supplementation), daily supplementation (1.5 kg/d of concentrate/animal) and infrequent supplementation (4.5 kg of concentrate/animal every three days). During the pre and postpartum periods, concentrations of blood metabolites and animal performance were evaluated. Ureagenesis and energy metabolism markers were evaluated at prepartum period. RESULTS:Supplementation frequency did not alter (p>0.10) body weight (BW), average daily gain (ADG), and carcass traits during pre and postpartum. The BW (p = 0.079), adjusted BW at day of parturition (p = 0.078), and ADG (p = 0.074) were greater for supplemented cows during the prepartum. The body condition score (BCS; p = 0.251), and carcass traits (p>0.10) were not affected by supplementation during prepartum. On postpartum, supplementation did not affect animal performance and carcass traits (p>0.10). The dry mater intake was not affected (p>0.10) by supplementation and supplementation frequency throughout the experimental period. Daily supplemented animals had greater (p<0.001) glucose levels than animals supplemented every three days. Supplementation and supplementation frequency did not alter (p>0.10) the levels of blood metabolites, neither the abundance of ureagenesis nor energy metabolism markers. CONCLUSION:In summary, our data show that the reduction of supplementation frequency does not cause negative impacts on performance and metabolic characteristics of primiparous grazing cows during the prepartum.

SUBMITTER: Moura FH

PROVIDER: S-EPMC7468163 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Effects of energy-protein supplementation frequency on performance of primiparous grazing beef cows during pre and postpartum.

Moura Felipe Henrique de FH Costa Thaís Correia TC Trece Aline Souza AS Melo Luciano Prímola de LP Manso Marcos Rocha MR Paulino Mário Fonseca MF Rennó Luciana Navajas LN Fonseca Mozart Alves MA Detmann Edenio E Gionbelli Mateus Pies MP Duarte Marcio de Souza MS

Asian-Australasian journal of animal sciences. 20200225 9

<h4>Objective</h4>Twenty-four pregnant Nellore primiparous grazing cows were used to evaluate the effects of energy-protein supplementation and supplementation frequency during pre (105 d before calving) and postpartum (105 d after calving) on performance and metabolic characteristics.<h4>Methods</h4>Experimental treatments consisted of a control (no supplementation), daily supplementation (1.5 kg/d of concentrate/animal) and infrequent supplementation (4.5 kg of concentrate/animal every three d ...[more]

PMID: 32106648

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Dataset Information

Effects of energy-protein supplementation frequency on performance of primiparous grazing beef cows during pre and postpartum.

Publications

Effects of energy-protein supplementation frequency on performance of primiparous grazing beef cows during pre and postpartum.

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