Dietary botanical composition of goats grazing creosotebush-dominated rangeland. Laribi, M. M. Ph.D. Thesis, New Mexico State University, Las Cruces, New Mexico, 1986.
abstract   bibtex   
Botanical composition of goats' (Capra hircus) diets on creosotebush-dominated rangelands was evaluated by microhistological techniques. Four esophageal-fistulated goats were used to collect forage during five periods. A 2 x 3 x 5 factorial treatment design was utilized to evaluate stocking rates (2 goats/ha, 1 goat/ha and an ungrazed control pasture ) and breed of goat (Spanish vs Angora). Goat grazing was initiated August 1982 and continued until October 1983. Species selectivity by goats was determined by preference indices and was affected by species availability in many periods. There were no effects (P\textgreater.05) of breed on animal dietary selectivity. Grass, forbs, and shrubs comprised 37%, 13% and 45%, respectively, of goats' diets averaged over the study periods. Most abundant species in the diets were wolfberry (Lycium spp.), bush muhly (Muhlenbergia porteri), tarbush (Flourencia cernua) and fluffgrass (Erioneuron pulchellum). Goats were highly selective for plant species of low herbage biomass. Shrubs were used mostly in January, June and October while grass was utilized in March and September. Dietary shrub composition differed (P\textless.05) on the heavy stocking rate from that under the moderate and control treatments. Most forb species were only eaten during certain periods when they were more readily available.
@phdthesis{laribi_dietary_1986,
	address = {Las Cruces, New Mexico},
	title = {Dietary botanical composition of goats grazing creosotebush-dominated rangeland},
	abstract = {Botanical composition of goats' (\textit{Capra hircus}) diets on creosotebush-dominated rangelands was evaluated by microhistological techniques.  Four esophageal-fistulated goats were used to collect forage during five periods.  A 2 x 3 x 5 factorial treatment design was utilized to evaluate stocking rates (2 goats/ha, 1 goat/ha and an ungrazed control pasture ) and breed of goat (Spanish vs Angora).  Goat grazing was initiated August 1982 and continued until October 1983.  Species selectivity by goats was determined by preference indices and was affected by species availability in many periods.     There were no effects (P{\textgreater}.05) of breed on animal dietary selectivity.  Grass, forbs, and shrubs comprised 37\%, 13\% and 45\%, respectively, of goats' diets averaged over the study periods.  Most abundant species in the diets were wolfberry (\textit{Lycium spp.}), bush muhly (\textit{Muhlenbergia porteri}), tarbush (\textit{Flourencia cernua}) and fluffgrass (\textit{Erioneuron pulchellum}).  Goats were highly selective for plant species of low herbage biomass.  Shrubs were used mostly in January, June and October while grass was utilized in March and September.  Dietary shrub composition differed (P{\textless}.05) on the heavy stocking rate from that under the moderate and control treatments.  Most forb species were only eaten during certain periods when they were more readily available.},
	school = {New Mexico State University},
	author = {Laribi, Mohamed. Mouldi.},
	year = {1986},
	keywords = {JRN}
}

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