Tethering Meat Goats Grazing Forage of High Nutritive Value and Low to Moderate Mass

Autor:	T. Sahlu, Arthur L Goetsch, G. Detweiler, Lionel J. Dawson, Ryszard Puchala, Amlan Kumar Patra, G. Animut
Rok vydání:	2008
Předmět:	geography geography.geographical_feature_category Tethering Energy metabolism Forage Biology Free movement Pasture Agronomy Grazing Animal Science and Zoology Digestion Feces Food Science
Zdroj:	Asian-Australasian Journal of Animal Sciences. 21:1252-1261
ISSN:	1976-5517 1011-2367
DOI:	10.5713/ajas.2008.60670
Popis:	Twenty-four yearling BoerxSpanish goats were used in a crossover design experiment to determine effects of tethering on forage selection, intake and digestibility, grazing behavior and energy expenditure (EE) with forage high in nutritive value and low to moderate in mass. Objectives were to determine if tethered goats could be used as a model for study of unrestrained animals and to characterize tethering as a production practice. Four 0.72-ha pastures of wheat (Triticum aestivum) and berseem clover (Trfolium alexandrium) were grazed in December and January. Each pasture hosted six animals, three with free movement and three attached to a 4.11-m tether for access to a circular area of 53.1 m 2 . Tethering areas were moved each day. One animal of each treatment and pasture was used to determine forage selection, fecal output or grazing behavior and EE; therefore, there were eight observations per treatment. Mass of forage DM before grazing in Tethered areas averaged 1,280 and 1,130 kg/ha in periods 1 and 2, respectively. The CP concentration in ingesta was greater ((p
Databáze:	OpenAIRE
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