A note on ash as indigestible dietary marker to determine digestibility of seeds in adult granivorous birds

• Autorzy: Sales J. , Janssens G.P.J.
• Języki publikacji: EN

Abstrakty

EN

A study has been conducted to evaluate the possible use of ash as indigestible dietary marker to determine energy metabolizability, nitrogen retention and digestibility of dry matter, organic matter and crude fat in seeds fed to adult granivorous birds. Digestibility values of whole maize and peas for adult domestic pigeons, and sunflower seed for adult African Grey parrots, were compared between the use of the ash ratio in seeds and excreta and the method of total collection of feed intake and excreta output. A temperature of 400ºC was found to be optimal to obtain ash recovery values of near to 100 % in both species for all seeds evaluated. Similar means and variation in values indicate that the ash ratio method could be a simple alternative to the laborious method of total collection to determine digestibility of seeds for adult granivorous bird. Precautions in the use of the ash ratio method are discussed.

• Wydawca: -
• Czasopismo: Journal of Animal and Feed Sciences
• Rocznik: 2006
• Tom: 15
• Numer: 1
• Opis fizyczny: p.97-102,ref.

Twórcy

autor

Sales J.

• Ghent Univerity, Heidestraat 19, B-9820, Merelbeke, Merelbeke, Belgium

autor

Janssens G.P.J.

Bibliografia

• AOAC, 1980. Official Methods of Analysis, Association of Official Analytical Chemists. 13th Edition. Arlington, VA
• Bjorndal K.A., 1985. Use of ash as an indigestible dietary marker. Bull. Mar. Sci. 36, 224-230
• Conover R.J., 1966. Assimilation of organic matter by zooplankton. Limnol. Oceanogr. 11, 338-345
• De la Noüe J., Choubert G., 1986. Digestibility in rainbow trout: comparison of the direct and indirect methods of measurement. Prog. Fish-Cult. 48, 190-195
• Hill F.W., Anderson D.L., 1958. Comparison of metabolizable energy and productive energy determinations with growing chickens. J. Nutr. 64, 587-603
• Maynard L.A., Loosli J.K., 1969. Animal Nutrition. 6th Edition, McGraw-Hill, New York, NY, pp. 613
• Misra M.K., Ragland K.W., Baker A.J., 1993. Wood ash composition as a function of furnace temperature. Biomass Bioenerg. 4, 103-116
• Sales J., Janssens G.P.J., 2003a. The use of markers to determine energy metabolizability and nutrient digestibility in avian species. World Poultry Sci. J. 59, 314-327
• Sales J., Janssens G.P.J., 2003b. Acid-insoluble ash as a marker in digestibility studies: a review. J. Anim. Feed Sci. 12, 383-401
• Sales J., Janssens G.P.J., 2003c. Methods to determine metabolizable energy and digestibility of feed ingredients in the domestic pigeon (Columba livia domestica). Poultry Sci. 82, 1457-1461
• Sales J., De Schutter L., Janssens G.P.J., 2004. The use of internal markers to determine metabolizable energy and digestibility of diets in the African Grey Parrot (Psittacus erithacus). Flemish Vet. J. 73, 176-181