Quality of black oat and ryegrass submitted to different heights of grazing collected by hand-plucking

Authors

  • Ricardo Guimarães Piazzetta Ministério da Agricultura, Pecuária e Abastecimento
  • João Ricardo Dittrich Universidade Federal do Paraná
  • Sergio José Alves IAPAR
  • Anibal de Moraes UFPR
  • Sebastião Brasil Campos Lustosa UNICENTRO
  • Tatiana Louise Gazda
  • Helen Aline Melo
  • Alda Lúcia Gomes Monteiro UFPR

DOI:

https://doi.org/10.5380/avs.v14i1.12636

Keywords:

FDA, FDN, proteína bruta, NDF, ADF, crude protein

Abstract

This trial aimed to evaluate the nutritive value of black oat and ryegrass pasture submitted to differentheights of grazing. The study was carried out in Experimental Farm from Cooperativa AgropecuariaMourãoense – COAMO in Campo Mourão city, Paraná State, Brazil. Experimental area corresponded to 8ha, with randomized blocks design, with four treatments, which corresponded to four heights of pasture: 7,14, 21, 28 cm and two replications. Samples were collected by hand-plucking. Average values of crudeprotein were 23,8%; 21,8%; 20,8% and 20,9% for 7; 14; 21 and 28 cm, respectively. The crude proteincontents presented quadratic response to height of pasture. Quantities of acid detergent fiber (ADF) were25,5%; 28,0%; 27,2% e 26,0% for 7; 14; 21 and 28 cm, respectively. Values of neutral detergent fiber (NDF)were 58,5%; 62,2%; 59,7% e 60,5% for 7; 14; 21 and 28 cm treatments, respectively. The quantity of ADFand NDF did not show statistic difference between heights of grazing.

Author Biographies

Ricardo Guimarães Piazzetta, Ministério da Agricultura, Pecuária e Abastecimento

Medico Verinário, Mestre em Ciências Veterinárias pela UFPR.

João Ricardo Dittrich, Universidade Federal do Paraná

Professor do departamento de Zootecnia da UFPR.

Sergio José Alves, IAPAR

Engenheiro agrônomo pesquisador do IAPAR.

Anibal de Moraes, UFPR

Professor do Departamento de Fitotecnia e Fitossanitarismo da UFPR.

Sebastião Brasil Campos Lustosa, UNICENTRO

Engenheiro agrônomo professor da UNICENTRO.

Tatiana Louise Gazda

Médica Veterinária, Mestre em Ciências Veterinárias pela UFPR. 

Helen Aline Melo

Médica Veterinária, Mestre em Ciências Veterinárias pela UFPR. 

Alda Lúcia Gomes Monteiro, UFPR

Professora do Departamento de Zootecnia da UFPR.

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Published

2009-12-03

How to Cite

Piazzetta, R. G., Dittrich, J. R., Alves, S. J., Moraes, A. de, Lustosa, S. B. C., Gazda, T. L., … Monteiro, A. L. G. (2009). Quality of black oat and ryegrass submitted to different heights of grazing collected by hand-plucking. Archives of Veterinary Science, 14(1). https://doi.org/10.5380/avs.v14i1.12636

Issue

Vol. 14 No. 1 (2009)

Section

Preventive Veterinary Medicine

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