Pasturas irrigadas utilizadas con cabras en dos regiones semi-aridas de Mexico.
1992
Salinas G Homero | Martinez P Ramon A.
In the semi-arid region of Mexico are located irrigated areas where there are cultivated forages for animal feeding. The purpose of this study was to analyze the data of four pastures evaluated with lactating goats in two locations. The method evaluates the annual rye grass (Lolium multiflorum) and Cross-1 Bermuda (Cynodon dactylon) to use the relationship of stocking rate. The two locations for the study were characterized by different goats type. Laguna site with crossbred and improved goats; and Zaragoza site with native goats. The results showed grazing periods of 124 to 144 days for rye grass and 107 to 125 days for Cross-1 Bermuda. The body weight carried per hectare was greater in rye grass (2.126 to 2.249 kgBW/ha) than those in Cross-1 Bermuda (1.923 to 2.025 kgBW/ha). The milk production was greater in the Laguna from rye grass and Cross-1 Bermuda (7.020; 6.408 kg/ha) than in Zaragoza (3.695; 2.419 kg/ha). The milk produced with rye grass was comparable to the milk produced with alfalfa 48.75 vs. 48,82 kg/ha/day respectively. There was an influence on the indexes obtained, due to genetic differences. Since there was a great genetic variability in and between regions it is suggested to analyze carefully the racial and productive characteristics of the goats used for experimentation.
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