| Autor: |
Gabriel Santos Souza David, Ellém Maria de Almeida Matos, Bianca Rodrigues Domingos, Yuri Cesconetto Ebani, Luiz Carlos Oliveira de Sousa, Gabriela Duarte Oliveira Leite, Pedro Henrique Borba Pereira, Luciana Navajas Rennó, Sidnei Antônio Lopes, Sebastião de Campos Valadares Filho, Mário Fonseca Paulino |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Animals, Vol 14, Iss 11, p 1710 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2076-2615 |
| DOI: |
10.3390/ani14111710 |
| Popis: |
We aimed to understand the changes in nutritional parameters and performance of beef cows during the peripartum, whether receiving or not receiving protein supplements. Forty cows were used, divided into two treatments: CON—mineral mix and SUP—protein supplementation. Digestibility trial was performed at 45, 30, and 15 days (d) before the parturition and at 20 and 40 d of lactation. The ADG of cows pre- and postpartum was recorded along with the BCS in gestational (GT) and maternal (MT) tissues in the prepartum. There was an effect of treatment and period (p ≤ 0.044) for intakes of DM and CP. The forage intake was similar (p > 0.90) but varied with the effect of days related to parturition (p < 0.001). There was a 14.37% decrease in DM intake from d −30 to d −15 of prepartum. In the postpartum, at 20 d of lactation, there was an increase of 72.7% in relation to d −15 of prepartum. No differences were observed in postpartum ADG or BCS at parturition and postpartum (p ≥ 0.12). However, higher total and MT ADG (p ≤ 0.02) were observed in animals receiving supplementation, while ADG in GT remained similar (p > 0.14). In conclusion, there is a decrease in intake for pregnant cows close to parturition and greater performance of animals supplemented in prepartum. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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