Nutritional evaluation of millet at different seeding rates and cutting heights

Authors

  • Lilian Monise Milke Universidade Federal de São Carlos, Centro de Ciências Agrárias, Departamento de Biotecnologia e Produção Vegetal e Animal
  • Mariana Campana Universidade Federal de São Carlos, Centro de Ciências Agrárias, Departamento de Biotecnologia e Produção Vegetal e Animal
  • Giovani Antônio Universidade Federal de São Carlos, Centro de Ciências Agrárias, Departamento de Biotecnologia e Produção Vegetal e Animal
  • Jozivaldo Prudêncio Gomes de Morais Universidade Federal de São Carlos, Centro de Ciências Agrárias, Departamento de Biotecnologia e Produção Vegetal e Animal
  • Elissandra Maiara de Castro Zilio Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Nutrição e Produção Animal
  • Juliana Aparecida Alves dos Santos Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Nutrição e Produção Animal
  • Tiago Antonio Del Valle Universidade Federal de São Carlos, Centro de Ciências Agrárias, Departamento de Biotecnologia e Produção Vegetal e Animal Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Nutrição e Produção Animal

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2018.127585

Keywords:

Digestibility, Forage production, Grazing management, Lignin, NDF

Abstract

This study evaluated the effect of different seeding rates and cutting heights on production and composition of millet. Two randomized block design experiments were performed. In the first trial, 32 parcels (1.2 × 1.2 m) were used for evaluation of seeding rate of 24, 35, 50 and 60 kg/ha. Three cuts were carried out to evaluate plant height, fresh and dry mass yield, dry matter (DM), neutral detergent fiber (NDF), crude protein (CP) and acid detergent lignin (ADL) concentration and in situ DM and NDF digestibility. In the second trial, 20 parcels (1.2 × 3.0 m) were used to evaluate 20, 30, 40 and 50 cm of cutting heights for two growing cycles, performing the evaluations previously listed. Seeding rate linearly increased plant height, fresh and dry mass production, and tended to linearly decrease dry matter in situ digestibility, without effects on forage composition. Cutting height had no effect on crude protein (CP) concentration, but linearly increased plant height, dry mass production, DM content and tended to decrease NDF in situ digestibility and ADL content. Thus, the use of the highest evaluated seeding rates (60 kg/ha) and cutting height (50 cm) increased forage production; however, the use of the lowest residual height increased forage quality.

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Published

2018-04-02

Issue

Section

FULL ARTICLE

How to Cite

1.
Milke LM, Campana M, Antônio G, Morais JPG de, Zilio EM de C, Santos JAA dos, et al. Nutritional evaluation of millet at different seeding rates and cutting heights. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2018 Apr. 2 [cited 2024 Dec. 9];55(1):1-8. Available from: https://www.revistas.usp.br/bjvras/article/view/127585