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Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase
BACKGROUND: Supplementation programs for prepartum beef cows are usually adopted because the nutritional status of the cows upon calving is a main factor impacting reproductive performance of the next production cycle. This study evaluated the effects of 60-d pre-partum energy-protein supplementatio...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146873/ https://www.ncbi.nlm.nih.gov/pubmed/32272910 http://dx.doi.org/10.1186/s12917-020-02309-3 |
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author | de Lana Ferreira, Matheus Fellipe Rennó, Luciana Navajas Detmann, Edenio Paulino, Mário Fonseca de Campos Valadares Filho, Sebastião Moreira, Samira Silveira Martins, Hudson Caio de Oliveira, Bruno Inácio Correa Marquez, Julia Avansi de Paula Cidrine, Isabela |
author_facet | de Lana Ferreira, Matheus Fellipe Rennó, Luciana Navajas Detmann, Edenio Paulino, Mário Fonseca de Campos Valadares Filho, Sebastião Moreira, Samira Silveira Martins, Hudson Caio de Oliveira, Bruno Inácio Correa Marquez, Julia Avansi de Paula Cidrine, Isabela |
author_sort | de Lana Ferreira, Matheus Fellipe |
collection | PubMed |
description | BACKGROUND: Supplementation programs for prepartum beef cows are usually adopted because the nutritional status of the cows upon calving is a main factor impacting reproductive performance of the next production cycle. This study evaluated the effects of 60-d pre-partum energy-protein supplementation on performance, metabolic and hormonal responses during the peripartum phase of grazing beef cows. Thirty-eight pregnant multiparous Nellore cows were assigned to a completely randomized design with two treatments: control (no supplement) and supplementation (1.5 kg of energy-protein per d with 30% crude protein, dry matter basis). RESULTS: The supplemented cows had higher ADG pre-partum (P < 0.10), but postpartum ADG did not differ between treatments. Supplementation did not affect BCS and calf BW upon calving, on days 45 and 90, milk yield and composition (P > 0.10). No differences were found for forage intake and neutral detergent fiber digestibility (P > 0.10). The intake and digestibility of CP and OM increased in response to supplementation (P < 0.10). An interaction occurred between supplementation and peripartum days for BUN, βHB, T3 and T4, which had higher concentrations for supplemented cows at pre-partum period (P < 0.10). Concentration of others blood parameters significantly changed along peripartum days (P < 0.10). There was no difference in pregnancy rates and days from calving to conception between treatments (P > 0.10). CONCLUSIONS: Providing an energy and protein supplement to grazing Nellore cows over the last 60 d of gestation improved their pre-partum energy balance. However, no post-partum carryover effects were detected. |
format | Online Article Text |
id | pubmed-7146873 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-71468732020-04-18 Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase de Lana Ferreira, Matheus Fellipe Rennó, Luciana Navajas Detmann, Edenio Paulino, Mário Fonseca de Campos Valadares Filho, Sebastião Moreira, Samira Silveira Martins, Hudson Caio de Oliveira, Bruno Inácio Correa Marquez, Julia Avansi de Paula Cidrine, Isabela BMC Vet Res Research Article BACKGROUND: Supplementation programs for prepartum beef cows are usually adopted because the nutritional status of the cows upon calving is a main factor impacting reproductive performance of the next production cycle. This study evaluated the effects of 60-d pre-partum energy-protein supplementation on performance, metabolic and hormonal responses during the peripartum phase of grazing beef cows. Thirty-eight pregnant multiparous Nellore cows were assigned to a completely randomized design with two treatments: control (no supplement) and supplementation (1.5 kg of energy-protein per d with 30% crude protein, dry matter basis). RESULTS: The supplemented cows had higher ADG pre-partum (P < 0.10), but postpartum ADG did not differ between treatments. Supplementation did not affect BCS and calf BW upon calving, on days 45 and 90, milk yield and composition (P > 0.10). No differences were found for forage intake and neutral detergent fiber digestibility (P > 0.10). The intake and digestibility of CP and OM increased in response to supplementation (P < 0.10). An interaction occurred between supplementation and peripartum days for BUN, βHB, T3 and T4, which had higher concentrations for supplemented cows at pre-partum period (P < 0.10). Concentration of others blood parameters significantly changed along peripartum days (P < 0.10). There was no difference in pregnancy rates and days from calving to conception between treatments (P > 0.10). CONCLUSIONS: Providing an energy and protein supplement to grazing Nellore cows over the last 60 d of gestation improved their pre-partum energy balance. However, no post-partum carryover effects were detected. BioMed Central 2020-04-09 /pmc/articles/PMC7146873/ /pubmed/32272910 http://dx.doi.org/10.1186/s12917-020-02309-3 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Article de Lana Ferreira, Matheus Fellipe Rennó, Luciana Navajas Detmann, Edenio Paulino, Mário Fonseca de Campos Valadares Filho, Sebastião Moreira, Samira Silveira Martins, Hudson Caio de Oliveira, Bruno Inácio Correa Marquez, Julia Avansi de Paula Cidrine, Isabela Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase |
title | Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase |
title_full | Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase |
title_fullStr | Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase |
title_full_unstemmed | Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase |
title_short | Performance, metabolic and hormonal responses of grazing Nellore cows to an energy-protein supplementation during the pre-partum phase |
title_sort | performance, metabolic and hormonal responses of grazing nellore cows to an energy-protein supplementation during the pre-partum phase |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146873/ https://www.ncbi.nlm.nih.gov/pubmed/32272910 http://dx.doi.org/10.1186/s12917-020-02309-3 |
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