Abstract
The agroforestry systems consider the integrated management of all production within the production unit processes and conservation practices related to the use of natural resources. From this point of view, it should be approached as a system composed by subsystems and the interactions that occur among them, in order to provide a sustainable, social, economic and ecological alternative to the traditional extensive ranching. The project objective was to evaluate the fattening of goats under an agrosilvopastoril production system established in the 2013 summer-autumn cycle, at the Technological Institute of Oaxaca Valley (ITVO). Completely randomized design with factorial arrangement evaluating three factors (age, sex and supplement) and two levels were used. 16 goats feeding with nutritional ITVO block, native grasses and guaje (Leucaena esculenta) were used. The variance analysis was made by the statistical package SAS (Statistical Analysis System) version 9.4. For the comparison of measures with Tukey test (α = 0.05) and a proximal analysis by Van Soest to obtain the quality of the forages. Weight gain related to sex was differential, males and females presented a value of 63.5±18.2 and 54.25±17.3 g day/animal not significant (p>0.05), respectively. Creole goats grazing and supplemented with a nutritional block had a weight gain of 70.5±20.3 g day/animal without supplement 47.29±18.9 g day/animal not significant (p>0.05). The greater weight gained in nutritional supplement found with block showed that the use of the same influences fattening goats.
Highlights
The traditional agriculture in Mexico has the main function of assisting the subsistence of the rural families, mainly in those communities that integrate cultivations, cattle raising and forest use
The objective of this study was to evaluate the fattening of goats under an agrosilvopastoril production system fed with guaje (Leucaena esculenta), grasses, especially guinea (Panicum maximus), buffel grass (Cenchrus ciliare) and pink grass (Rhynchelytrum repens) and a nutritious supplement by means of a nutritional block
The land where the agrosilvopastoril system is located has a slope average of 30%, thin soils, not bigger to the 30 cm in its lower part, with contents of 84.56% of sand, 9.44 %of clay and 6% of slime, classified as a frank sandy soil, that makes it of low capacity of retention of humidity
Summary
The traditional agriculture in Mexico has the main function of assisting the subsistence of the rural families, mainly in those communities that integrate cultivations, cattle raising and forest use. During a lot of time, the goat has provided to the human of products that have allowed them improving well-being and economy; mainly for the social classes vulnerable of the rural environment [1]. The goats continue being the main animals that cover the human necessities [2]. To reach an appropriate and sustained productivity in the communities, it is necessary to know the use that carries out the goat of the vegetable species. The capacity of the goat in the use of the bush is well known [3,4,5] and their efficiency to survive in certain areas that their topography, vegetation and other adverse conditions, make them inadequate for the handling of bovines and ovines [6,7].
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