Sheep nutrition on Atriplex based ranges
1995
Hassan, N.L. (ACSAD, Damascus (Syria))
A five year project, carried out by ACSAD, showed that low feed intake and digestibility, low content of readily available carbohydrates and mineral imbalance are the main problems related to sheep nutrition on Atriplex spp. Therefore, the annual vegetation cover in Atriplex ranges alleviates some of these nutritional problems. Quantity and quality of feed supplementation to Atriplex ranges were determined. Barley grains and wheat bran, 200 and 100 g/head/day, improved the nutritive value of Atriplex and realized a high performance for lamb growth as well as pregnancy and milk production for ewes. Economic evaluation of Atriplex plantations showed that the internal rate of return (IRR) was high being 25 and 19 percent for Atriplex ranches with or without feed supplementation, respectively. Moreover, the respective benefit-cost ratio was 3.9 and 1.3. It was recommended that establishing Atriplex ranches in the arid zone is advantageous where the owner gets back his investments within the first five years of the project
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