Chemical composition and dry matter digestion of some native and cultivated grasses in Mexico

R.G. Ramírez, H. González-Rodríguez, R. Morales-Rodríguez, A. Cerrillo-Soto, A. Juárez-Reyes, G.J. García-Dessommes and M. Guerrero-Cervantes
Additional contact information
R.G. Ramírez: Faculty of Biological Sciences, Autonomous University of Nuevo León in San Nicolás de los Garza, Nuevo León, México
H. González-Rodríguez: Faculty of Forestry Sciences, Autonomous University of Nuevo León in Linares, Nuevo León, México
R. Morales-Rodríguez: Faculty of Biological Sciences, Autonomous University of Nuevo León in San Nicolás de los Garza, Nuevo León, México
A. Cerrillo-Soto: Faculty of Veterinary Medicine, Juárez University of the State of Durango in Durango, Durango, México
A. Juárez-Reyes: Faculty of Veterinary Medicine, Juárez University of the State of Durango in Durango, Durango, México
G.J. García-Dessommes: National Institute of Agricultural Research, in Terán, Nuevo León, México
M. Guerrero-Cervantes: Faculty of Biological Sciences, Autonomous University of Nuevo León in San Nicolás de los Garza, Nuevo León, México

Czech Journal of Animal Science, 2009, vol. 54, issue 4, 150-162

Abstract: The objective of the study was to quantify differences in nutritive value, over four seasons, of native grasses such as Bouteloua curtipendula, Bouteloua trifida, Brachiaria fasciculata, Chloris ciliata, Digitaria insularis, Leptochloa filiformis, Panicum hallii, Panicum obtusum, Paspalum unispicatum, Setaria grisebachii, Setaria macrostachya, Tridens eragrostoides, Tridens muticus and naturalized chrus ciliaris and Rhynchelytrum repens that are used as forages for grazing beef cattle. Cenchrus ciliaris was included as a reference grass of good nutritional quality. Plants were collected in autumn 2001 and in winter, spring and summer 2002. The nutritive value was assessed in terms of nutrient content, effective rumen degradable dry matter (EDDM), metabolizable energy (ME) and metabolizable protein (MP). Most grasses had crude protein (CP) content comparable to the reference C. ciliaris grass (grand mean = 120 g/kg) and some of them had a higher content (140 g/kg). Cell wall (NDF) and lignin contents were lower in C. ciliaris (650 g/kg, 30, respectively) than in the other grasses (mean = 700 g/kg, 60, respectively). All grasses had less EDDM (mean = 420 g/kg) than C. ciliaris (470 g/kg). All grasses had the ME content (mean = 5.6 MJ/kg DM) that was lower for maintenance requirements of growing beef cattle. Conversely, mean MP values (67 g/kg DM) were sufficient. Lower content of P (annual mean = 120 g/kg DM), Na (0.3) and Cu (40 mg/kg DM) was detected in all grasses to meet the requirements of growing cattle. All grasses, in all seasons, had sufficient CP and MP content to meet the maintenance requirements of growing beef cattle. Higher levels of EDDM occurred in summer and autumn. Because of their good nutritional quality, grasses such as B. fasciculata, C. ciliata, P. hallii, P. obtusum, S. grisebachii, S. macrostachy and T. eragrostoides can be considered as good forages for ruminants.

Keywords: native grasses; chemical composition; nutritive value; rumen degradability (search for similar items in EconPapers)
Date: 2009
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://cjas.agriculturejournals.cz/doi/10.17221/1741-CJAS.html (text/html)
http://cjas.agriculturejournals.cz/doi/10.17221/1741-CJAS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:54:y:2009:i:4:id:1741-cjas

DOI: 10.17221/1741-CJAS

Access Statistics for this article

Czech Journal of Animal Science is currently edited by Bc. Michaela Polcarová

More articles in Czech Journal of Animal Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().