NUTRITIVE VALUE OF A NATIVE PASTURE DOMINATED BY Eragrostis plana Nees AND ITS RELATION WITH METABOLIC PROFILE OF PRIMIPAROUS COWS SUPPLEMENTED FROM PREGNANCY TO POSTPARTUM

Authors

  • Caius Barcellos de Pellegrini Universidade Federal do Rio Grande do Sul
  • Renato Borges de Medeiros Universidade Federal do Rio Grande do Sul
  • Silvane Barcelos Carlotto Universidade Federal do Rio Grande do Sul
  • Renata Porto Alegre Garcia Universidade Federal do Rio Grande do Sul
  • Celso Vargas Lisboa Universidade Federal do Rio Grande do Sul
  • Gilmar Bruning Universidade Federal do Rio Grande do Sul

DOI:

https://doi.org/10.1590/cab17216953

Keywords:

Animal Nutrition

Abstract

Abstract
The objective of this research was to evaluate the quality of the forage mass of a native pasture covered by 70% of Eragrostis plana Nees (South African lovegrass) under continuous grazing of primiparous cows. The following chemical characteristics of forage components leaves and stems of South African lovegrass and native species were evaluated: organic matter in vitro digestibility (OMIVD), crude protein (CP), and neutral detergent fiber (NDF). The protein and mineral metabolic profile in blood was associated with the supplements common salt, mineral salt, protein salt and reproduction salt. There was higher crude protein content in leaves and stems of South African lovegrass in winter (9.4% and 6.7) and spring (8.9% and 6.6), respectively. Metabolic protein in the blood did not differ among supplements (P> 0.05), but levels of albumin (34.5 to 25.3 g/L) and urea (36.2 to 30.1 mg/dL) decreased from winter to summer. There was deficiency of the average content of mineral phosphorus for cows supplemented with protein salt (3.9), mineral salt (3.3) and common salt (2.2) in spring and common salt (2.9 mg/dL) in summer. Primiparous cows managed on native pasture with a prevalence of 70% coverage of South African lovegrass need mineral phosphorus supplementation with reproduction salt in spring and summer.
Keywords: crude protein; leaf; organic matter in vitro digestibility; native species; neutral detergent fiber.

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Author Biographies

Caius Barcellos de Pellegrini, Universidade Federal do Rio Grande do Sul

Departamento de Agrometeorologia e Plantas Forrageiras

Renato Borges de Medeiros, Universidade Federal do Rio Grande do Sul

Departamento de Agrometeorologia e Plantas Forrageiras

Silvane Barcelos Carlotto, Universidade Federal do Rio Grande do Sul

Departamento de Agrometeorologia e Plantas Forrageiras

Renata Porto Alegre Garcia, Universidade Federal do Rio Grande do Sul

Departamento de Agrometeorologia e Plantas Forrageiras

Celso Vargas Lisboa, Universidade Federal do Rio Grande do Sul

Departamento de Agrometeorologia e Plantas Forrageiras

Gilmar Bruning, Universidade Federal do Rio Grande do Sul

Departamento de Agrometeorologia e Plantas Forrageiras

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Published

2016-04-29

How to Cite

DE PELLEGRINI, C. B.; MEDEIROS, R. B. de; CARLOTTO, S. B.; GARCIA, R. P. A.; LISBOA, C. V.; BRUNING, G. NUTRITIVE VALUE OF A NATIVE PASTURE DOMINATED BY Eragrostis plana Nees AND ITS RELATION WITH METABOLIC PROFILE OF PRIMIPAROUS COWS SUPPLEMENTED FROM PREGNANCY TO POSTPARTUM. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 17, n. 2, p. 154–163, 2016. DOI: 10.1590/cab17216953. Disponível em: https://revistas.ufg.br/vet/article/view/16953. Acesso em: 24 nov. 2024.

Issue

Vol. 17 No. 2 (2016)

Section

Animal Production

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