SUPPLEMENTAL POLYETHYLENE GLYCOL AND ENERGY INCREASE INTAKE OF MEDITERRANEAN SHRUBS BY SHEEP AND GOATSReportar como inadecuado




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Krmiva : Review for animal feeding, production and feed technology, Vol.49 No.5 November 2007. -

Maquis is an extensive shrubby vegetation type in the Mediterranean region that provides important habitat for wild and domestic herbivores. Although the majority of the shrubs are nutritious, virtually all contain secondary compounds that reduce their forage value. In four trials, we examined the effect of polyethylene glycol PEG and a number of of Mediterranean shrubs was offered species to sheep and goats. We offered 6 shrubs in trial 1, three shrubs in trial 2, two shrubs in trial 3, and one shrub in trial 4. Trials were conducted with 12 sheep and 12 goats 6 PEG vs. 6 control. In trial 1, goats ate more total shrub biomass than did sheep 60.7 vs. 45.9 ± 2.6 g-kg BW, respectively. There was a trend P=0.08 towards a positive PEG effect on total shrub intake, with PEG-supplemented animals consuming more total shrubs than controls 56.7 vs. 50.0 ± 2.6 g-kg BW. In trial 2, both species of animals showed a numerical decrease in total shrub intake with or without supplemental PEG. Sheep receiving PEG ate more P=0.002 total shrubs than did controls, but no such treatment effect was found for goats. In trial 3, supplemental PEG had a positive effect P



Autor: Jozo Rogošić - ; Department of Ecology, Agronomy and Aquaculture, University of Zadar, Zadar, Croatia

Fuente: http://hrcak.srce.hr/



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