Effect of short-term underfeeding on weight of splanchnic organs in ewes

Archiv für Tierernährung
P Nozière, M Doreau

Abstract

We assessed the effect of short-term underfeeding on weight and protein mass of splanchnic tissues in adult ewes submitted to a factorial experimental design. In a pre-experimental period, 18 ewes divided into 2 groups of 9 were fed a second cut of natural grassland hay during 4 weeks at 112 or 38% of their energy maintenance requirements. Three ewes of each group were then fed the same hay during 4 weeks at either low (group L), moderate (group M) or high intake (group H), corresponding to 38, 75 or 112% of their energy maintenance requirements, respectively, then slaughtered. Fresh weight and protein mass of splanchnic organs were measured. No carry-over effect of the pre-experimental level of intake on weight and protein mass was observed for any splanchnic organs. Splanchnic tissues contributed at 10.7 and 8.6% to the decrease in live weight for groups M and L, respectively. The decrease in weight of splanchnic tissues (-15%) was mainly attributed to reticulorumen (-23%), liver (-21%), and at a lesser extent small intestine (-11%). No large change in the mass ratio between mucosa and muscular-serosa in both dorsal and ventral sacs occurred in the rumen wall. These results are discussed together with previous published resul...Continue Reading

References

Sep 1, 1990·The British Journal of Nutrition·D G BurrinM Bauer
Jan 1, 1983·Quarterly Journal of Experimental Physiology : an International Journal of the Physiological Society·R J BarnesA Dobson
Jul 1, 1993·Journal of Dairy Science·R Britton, C Krehbiel
Aug 5, 2000·Small Ruminant Research : the Journal of the International Goat Association·N AttiF Bocquier

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Citations

Nov 15, 2019·The Journal of Veterinary Medical Science·Mamiko OnoShigehisa Tsumagari

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