A progress report on research with beef cattle at the Front Royal Station

Cover title.

Beef cattle science.

Previous editions published under title: Beef cattle husbandry.

Selecting, fitting and showing beef cattle,

Mode of access: Internet.

Dwarfism in beef cattle, a literature review.

Includes bibliography.

Economic history of the production of beef cattle in Iowa,

"The edition is limited to six hundred copies."

Guide to beef cattle improvement program /

Mode of access: Internet.

Farm feeding beef cattle to market homegrown feeds /

Mode of access: Internet.

Effects of stocking rates on range vegetation and beef cattle production in the northern Great Plains /

Includes bibliographical references (p. 47-48).

Beef cattle publications and visual materials /

Cover title.

Feeding beef cattle in Alabama /

"October 12, 1912."

Delayed growth of beef cattle /

Literature cited: p. 25-26.

Quantification and prevalence of Salmonella in beef cattle presenting at slaughter

Aims: A survey to determine the prevalence and numbers of Salmonella in beef cattle presented for slaughter at abattoirs across Australia was conducted between September 2002 and January 2003. Methods and Results: Automated immunomagnetic separation (AIMS) was used for detection and isolation of Salmonella enriched from cattle faeces. Salmonella were enumerated from positive samples using a combination of the Most Probable Number (MPN) technique and AIMS. A total of 310 faecal samples were tested, 155 were from lot-fed cattle and 155 from grass-fed cattle. Salmonella spp. were isolated from 21 (6.8%) of the cattle and the prevalence amongst grass-fed cattle (4.5%) was not significantly different to that found in lot-fed cattle (9%). Counts of Salmonella in positive faeces varied from

Effectiveness of evaporative cooling of beef cattle housed in confinement

Eighteen Angus steers exposed to high heat load conditions were used to assess the effectiveness of four spray cooling systems, on reducing the effects of heat load, the impact on microclimate and water usage. The steers were housed in groups of nine in a fully enclosed shed and were exposed to high heat load conditions for four days. The cooling systems used were water applied via a hose, via overhead sprinklers, via sprinklers at leg height and via misters. The water used was approximately 31 oC and contained 3% NaCl. Fans were used to ensure adequate air movement over the cattle. The animal parameters measured were feed intake, respiration rate, panting score and behaviour. Climatic factors were ambient temperature and wet bulb temperature. Ammonia levels were also measured. The hose, overhead sprinklers and misting were successful in reducing heat load on the cattle. The leg wetting system did not work because the dominant cattle blocked access to the sprinklers. The misting system used the most water (5483 L) and the hose the least (845 L). The application of water had minor impacts on wet bulb temperature, but resulted in significant reductions in dry bulb temperatures.