| Autor: |
Matheus Fellipe de Lana Ferreira, Luciana Navajas Rennó, Edenio Detmann, Mário Fonseca Paulino, Sebastião de Campos Valadares Filho, Samira Silveira Moreira, Hudson Caio Martins, Bruno Inácio Correa de Oliveira, Julia Avansi Marquez, Isabela de Paula Cidrine |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
BMC Veterinary Research, Vol 16, Iss 1, Pp 1-13 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1746-6148 |
| DOI: |
10.1186/s12917-020-02309-3 |
| Popis: |
Abstract 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). 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). 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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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