Life Sciences Commons^™

The Agriculture And Land Description Of The Midlands, Wongan Hills And Dalwallinu Districts Of W.A., D N. Sawkins

Agriculture reports

This report deals with the area of responsibility of the Moora District Office of the W.A. Department of Agriculture. The Moora advisory district consists of seven shires which cover 2,811,400 hectares. Agriculture in the advisory district varies according to climate and soil type, Sheep and cattle production are the main enterprises in the high rainfall (coastal) areas. Mixed cereal sheep production is the main system in the medium and low rainfall areas with cereals increasing in importance as annual rainfall diminishes.

Some Morphological And Chemical Responses Of Blackbrush (Coleogyne Ramosissima) To Goat Browsing: Influences On Dietary Blackbrush Selection By Goats And Cattle, Frederick D. Provenza

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Domestic goats were used to modify the growth form of blackbrush, a spinescent shrub occurring in nearly monospecific stands on several million hectares of rangeland in the southwestern United States. The objective of this research was to evaluate goat browsing as a means of improving these rangelands for cattle. Winter goat browsing stimulated spring twig growth from basal and axillary buds which resulted in increased production.

Twig production by heavily browsed plants (>95 percent removal of current season's twigs) was a function of precipitation, soil depth, branch location on the plant, and period of rest after browsing. As precipitation …

Studies On Beneficial And Adverse Effects Of Dietary Buffers For Lambs, Jong Kyu Ha

Electronic Theses and Dissertations

Experiments using lambs were conducted to study the effects of buffers or roughages against acidosis occurring during rapid dietary changes. Experiments using rats were conducted to investigate vitamin A and thiamin stability and/or utilization as influenced by bentonite. Incubating rumen fluid in vitro at a pH lower than 6 reduced volatile fatty acid (VFA) production and increased lactate accumulation. Limestone or bentonite at levels of 2% in 92% concentrate diets had little effect on feed intake or rumen and blood parameters during a 7-day treatment period using rumen-canulated sheep. However, 2% NaHCO₃ increased rumen pH and feed intake on …