Pasture productivity and bovine milk production grazing of grass and grass + Lotus uliginosus in Mosquera, Cundinamarca
In the present study was determined and assessed the aerial biomass (g MS/m2), botanical composition, nutritional quality and production and quality of milk in two types of pasture for cold weather. The experiment was carried out in Marengo Central Agriculture of the National University of Colombia in Mosquera, Cundinamarca, where a mixture of kikuyu grass (Pennisetum clandestinum) and tall fescue (Festuca arundinacea) and other of tall fescue mixed with birdsfoot trefoil (Lotus uliginosus) legume was evaluated, in a hectare by each pasture. Employing a completely randomized design how the cow was a experimental unit and the pasture was a treatment. 5 Holstein cows (PV 580 kg) between two and four birth in the mid lactation for each treatment for a trial period of 15 days was used, 7 days of adaptation and 7 days of measurements. In each pasture aerial biomass (g MS/m2), botanical composition (%), nutritional quality (PC, ND F, FDA DIV MS), milk production (lt/day) and milk quality (% fat, protein, casein and solids) was determined. Although no statistical comparison was done for biomass production, the greater production was the mixed pasture, also with regard to the nutritional quality the main difference was observed in the protein content, being higher in the mixed pasture. Higher values were observed in milk production, casein and protein in the mixed pasture (P 0.05) contents. We concluded that the pastures mixed grass + legume improve the milk production and protein in milk values.
| Main Authors: | , , , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Medicina Veterinaria y de Zootecnia
2008
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| Online Access: | https://revistas.unal.edu.co/index.php/remevez/article/view/10478 |
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