Titlebook: Avian Physiology; P. D. Sturkie Textbook 19763rd edition Springer-Verlag New York Inc. 1976 Tierphysiologie.Vögel.animal physiology.bird.m

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,Boron–Nitrogen Dehydrocoupling,abolism has been gathered. Use of newly designed methodology, of more sensitive techniques, and of the “molecular approach” allow for reevaluation of the results of older experiments as well as for progress in understanding avian carbohydrate phenomena at a lower level of (organismic) organization.

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Pierre R. Smeesters,Anne Botteauxreas, (6) the testes and ovary (gonads), (7) the ultimo-bronchial glands, and (8) the intestine. The thymus and pineal bodies, which are sometimes classified as endocrine organs, are present in the bird but their functions are not clear.

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Group Actions and Vector Fieldsstages, they usually do not persist in adult life. A persistent right ovary and oviduct have been reported in some avian species (raptors) and in rare instances in ducks and chickens where both ovaries and oviducts were functional (see Sturkie, 1965; Lofts and Murton, 1973).

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Group Actions and Vector Fieldsthe penis (Figure 17–1). The testes are near the cephalic end of the kidneys and ventral to them. The weight of the testes in chickens comprises about 1% of the total body weight (Parker, 1949), or about 9–30 g per single testis at sexual maturity, depending on breed, state of nutrition, and other f

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