DETERMINATION OF ANIMAL LOAD AND GRAZING SYSTEM IN THE WEIGHT GAIN OF BOVINES WITH SECONDARY VEGETATION FEEDING
Journal: International Journal of Advanced Research (Vol.9, No. 8)Publication Date: 2021-08-20
Authors : Sosa-Rubio Edgar Enrique Herrera-Cool Gilbert Jose; Zavaleta-Cordoba Maria Del Carmen;
Page : 441-447
Keywords : Native Vegetation Animal Load Grazing System Alternate Grazing Rotational Grazing;
Abstract
The present study was to evaluate the weight gain of bovinesin three animal loads with two grazing systems and three levels of grazing, furthermore to evaluate the botanic composition of secondary vegetation areas. The study was carried out during two years, in the first year, the animal loads used were 0.25, 0.50 and 0.75 animal unit per hectare (AU/ha).The vegetation which animals were evaluated was secondary vegetation of 8 years old. Botanic composition was determined by transects at the beginning of experiment. The two systems used were rotational and alternate grazing with three animals per each load and system.The initial average weights were 175 kg and evaluation were carried out each 56 days. The experimental design used was random totally with factorial arrange of 3X2, the first factor was the animal load and the second was the grazing system. Results indicated changes in botanic composition caused by grazing effect (P≤0.05), furthermore, grazing system and animal loads showed significative statistical differences between treatments and interaction. The best weight gain was 520 g of weight gain average per day detected in 0.50AU/ha with rotational grazing system (P≤0.05).
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