Gradiente de pastoreo bovino desde la aguada, sobre Digitaria diferida, en relación a la permanencia animal
; Privitello, Mercedes Josefa Liliana ; Gabutti, E. G. ; Cozzarin, G. I. ; Ruiz, M. O. ; Vetore, O. S. ; Garbulsky, Martín Fabio 
Otros responsables
Fecha
04/2013
Editorial
L&M
Revista
Revista de la Facultad de Agronomía UNLPam
Título del libro
Nombre del evento
Fecha del evento
Institución organizadora
ISSN
0326-6184
http://www.biblioteca.unlpam.edu.ar/pubpdf/rev-agro/v22s2t1a01bacha.pdf
http://www.biblioteca.unlpam.edu.ar/pubpdf/rev-agro/v22s2t1a01bacha.pdf
eISSN
2314-2669
ISBN
Idioma
Español
Tipo del evento
Clasificación temática
Palabras clave
Resumen
Se delimitaron 3 sectores con distinta intensidad de disturbio en un potrero de Digitaria eriantha, mediante la localización georeferenciada de una vaca de cría. Se registraron las heces presentes en 9 cuadros de muestreo de 144 m2 y cobertura de digitaria e invernales forrajeras antes y después del periodo de pastoreo en 3 transectas fijas de 10 m de largo, por sector. Para sintetizar la información de la vegetación, se aplicó el INTECO y se estimó la disponibilidad forrajera de 9 muestras de 0,5 m2 por sector. La concentración de heces decreció gradualmente al alejarse de la aguada. Las coberturas de Digitaria y forrajimasa luego del periodo de pastoreo disminuyeron en los 3 sectores, mientras la de invernales sólo lo hizo en cercano "C" y medio "M". La condición forrajera establecida por INTECO, disminuyó una categoría luego del pastoreo en los sectores "C" y "M", en "L" (lejos) hubo un mayor impacto debido al ingreso de animales externos. La geoposición de animales en pastoreo permite definir un gradiente de pastoreo, y las variables estudiadas corroboran dicho efecto. La identificación del gradiente de pastoreo respecto a la aguada es de suma importancia para mejorar el diseño de potreros y aguadas, y optimizar la eficiencia de cosecha forrajera.
3 sectors were defined with different intensity of disturbance in a paddock of Digitaria erian- tha, by georeferenced positions of a cow. Fecal abundance into 9 squares sampling sites of 144 m2 and coverage of Digitaria and native winter species before and after grazing pe- riod, in 3 permanent transects 10 m long by sector, were registered. To summarize the in- formation of vegetation, INTECO was applied and forage availability was estimated in 9 samples of 0.5 m2 by sector. Fecal concentration gradually decreased getting away from the watering point. Digitaria coverage and forage availability after grazing period decreased in the 3 sectors, while in winter species just did it in nearby "C" and medium "M". The forage condition established by INTECO decreased one category after grazing period for sectors "C" and "M", in "L" (far) show a greater impact due to the entry of external animals. The geoposition of grazing animals lets to define a grazing gradient, and the studied variables support this effect. The position of grazing animals allows to define a grazing gradient, and the studied variables support this effect. The identification of grazing gradient regard to the watering point is paramount to improve the design of paddocks and water distribution, to enhance the efficiency of forage harvest.
3 sectors were defined with different intensity of disturbance in a paddock of Digitaria erian- tha, by georeferenced positions of a cow. Fecal abundance into 9 squares sampling sites of 144 m2 and coverage of Digitaria and native winter species before and after grazing pe- riod, in 3 permanent transects 10 m long by sector, were registered. To summarize the in- formation of vegetation, INTECO was applied and forage availability was estimated in 9 samples of 0.5 m2 by sector. Fecal concentration gradually decreased getting away from the watering point. Digitaria coverage and forage availability after grazing period decreased in the 3 sectors, while in winter species just did it in nearby "C" and medium "M". The forage condition established by INTECO decreased one category after grazing period for sectors "C" and "M", in "L" (far) show a greater impact due to the entry of external animals. The geoposition of grazing animals lets to define a grazing gradient, and the studied variables support this effect. The position of grazing animals allows to define a grazing gradient, and the studied variables support this effect. The identification of grazing gradient regard to the watering point is paramount to improve the design of paddocks and water distribution, to enhance the efficiency of forage harvest.
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