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Chemical Composition and Acceptability of Aquatic Plants in Diets of Sheep and Pregnant Goats¹

Cornell University, Ithaca 14853 and and Virginia Polytechnic Institute, Blacksburg 24061

Abstract

Aquatic plants harvested from Cayuga Lake in New York were dried, milled and incorporated into a pelleted ration replacing 35% by weight of alfalfa meal. The ration was fed to pregnant goats and to sheep for 130 days. Analysis of the aquatic plants for 40 elements and polychlorinated biphenyls showed no toxic concentrations. There were no significant differences (P>.05) in feed intake, rate of weight gains or ration digestibility between the animals fed the aquatic ration and those fed the control ration. The aquatic ration was notably higher in ash and lower in fat, fiber and energy than was the control ration. All kids born were normal. Gross pathologic and histologic examination of animal tissues revealed no notable differences between animals fed the aquatic and control rations.

¹ The authors thank J. W. Wilbur, W. A. English, T. H. Kuntz, W. F. Miller, J. Hotaling, H. G. Knight, L. F. Armitage, G. F. Rickey, T. G. Wright, J. C. Palermo, W. D. Youngs, E. J. Harris, R. Karcher, H. T. Greweling and C. Burda for their assistance during the course of this investigation.

² Department of Animal Science.

³ Department of Veterinary Pathology.

⁴ Pesticide Residue Laboratory, Department of Food Science.

⁵ Office of Occupational Health and Safety.

⁶ Nuclear Reactor Laboratory.