Digital Commons Network^™

Clinical Trials With Copper Supplementation, Clell Bagley, Norris Stenquist, Dennis Worwood

All Current Publications

Copper deficiency has been diagnosed in beef cattle herds in many areas of the intermountain west. Copper supplements are not widely used, even though several products are available. It is difficult to correct a deficiency because too much copper can result in copper toxicity or poisoning. Toxicity is less a hazard with cattle than with sheep, but it is still a problem to guard against. Periodic monitoring of the herd’s copper status is essential for proper supplementation.

Summary Of Diseases Of Range Sheep, Clell Bagley

All Current Publications

No abstract provided.

Copper Deficiency In Utah, Clell Bagley, Norris Stenquist, Dennis Worwood

All Current Publications

Copper deficiency has been diagnosed in a number of Utah cattle herds, yet few producers use copper supplements. Cattle deficient in the element can suffer significant production losses. Producers need to balance both the effects and the costs of copper supplements. Too much copper can cause copper toxicity or poisoning. And adding copper may not be economical if animals are only marginally deficient. Further, the deficiency may occur only on specific feeds or pastures, correcting itself when cattle are moved.

Updating Your Herd Health Plan, Clell Bagley

All Current Publications

Animal health is not sold in a bottle, syringe or sack. It comes as a result of proper management. The increased concentration and movement of cattle and demands for greater production necessitate an improved level of management to maintain cattle health.

Internal Parasites, Clell Bagley

All Current Publications

Internal parasites and how they affect animals.

External Parasites, Clell Bagley

All Current Publications

No abstract provided.

Impact Of Preventive Aerial Coyote Hunting On Sheep Losses To Coyote Predation, Kimberly K. Wagner, Michael R. Conover

Great Plains Wildlife Damage Control Workshop Proceedings

Coyote (Canis latrans) predation is a serious problem for livestock producers in the Western U.S. In Utah, Idaho, and Wyoming, 34% of all producer-reported sheep and lamb losses were to coyote predation, amounting to $4.8 million in losses during 1995. Although preventive aerial hunting is commonly used by agriculture agencies in the Intermountain West to reduce coyote (Canis latrans) predation on sheep (Ovis aries), only limited data are available on the efficacy of the technique. We assessed the impact of winter (January - March) aerial coyote hunting on sheep losses to coyotes and the …

Sheep Predation By Coyotes: A Behavioral Analysis, Ray T. Sterner

Great Plains Wildlife Damage Control Workshop Proceedings

This paper presents (1) a brief overview of several concepts important to predator-prey behaviors of coyotes, (2) results of an enclosure study of sheep-attack, -immobilization, and -ingestion responses involving 12 male coyotes (Canis latrans) that were paired with sheep after observing various sheep- predation events by conspecifics, and (3) an analysis of sheep predation based upon operant learning principles. Contrasts between comparative psychological and ethological approaches to the study of animal behavior are described. Results of the enclosure study (0.127-ha) showed that following matched-length trials of observing predation, non-predation, and lone sheep, 3, 2, and 1 coyote(s), respectively, …

Livestock Protection Collar Use In California, Robert M. Timm, Gary D. Simmons, John R. Hays

Great Plains Wildlife Damage Control Workshop Proceedings

Use of the Livestock Protection Collar (LP Collar) containing sodium fluoroacetate began on a research basis in October 1995 at the UC Hopland Research and Extension Center. Registration for use in California only by certified ADC specialists was granted in early 1996, and operational use in three north coast counties began in early 1997. Preparation for beginning operational use dealt with concerns regarding user certification, hazardous waste disposal, and public relations. We report on the success to date of using LP Collars to remove sheep-killing coyotes. Incidents in which non-target predators including mountain lions have attacked LP-Collared sheep are also …

Using Alternative Feeding Management To Reduce Winter Feed Costs For Sheep, Jeff Held

SDSU Extension Extra Archives

A short supply of traditional forage sources and much higher prices means that sheep producers should consider alternative feedings management strategies to lower their production costs. For large-flock owners, substituting feeds could prove to be a wise choice. For many small-flock owners, simple physical adjustments in feeding management could move feed costs inline with previous production cycles. Annual flock feed costs usually account for 50 to 70% of total expenses. However, very little time is actually spent determining the absolute dollar figure on a per ewe basis. For producers to lower feed costs in the current production cycle, it’s logical …

Utilizing Leafy Spurge As Haylage For Sheep, Scott Kronberg, Lowell Slyter

South Dakota Sheep Field Day Proceedings and Research Reports, 1997

It is well recognized that sheep will graze the noxious weed leafy spurge and at least one sheep producer (Don Genre near Towner, ND) feeds large quantities of leafy spurge hay to sheep. We conducted a small trial to determine how well sheep would consume leafy spurge haylage, and how productive they were while consuming it.

Effect Of Sire Selection On Lamb Growth And Carcass Traits, Jeff Held, A. L. Slyter, Bruce Read, Breck Long

South Dakota Sheep Field Day Proceedings and Research Reports, 1997

The objectives of our study were to determine the production advantage for growth and carcass traits in lambs sired by rams selected for rapid pre- and postweaning ADG.

Habitat Patch Dynamics Of Desert Bighorn Sheep Ovis Canadensis Nelsoni In The Eastern Mojave Desert, Darren Del Divine

UNLV Retrospective Theses & Dissertations

The individual chapters of this Dissertation were designed to examine desert bighorn habitat, and the disjunct nature of that habitat. The findings of the first chapter illustrated that although 30 m elevation data yielded a more accurate depiction of the landscape, 100 m data was still adequate for determining habitat quality. The second chapter illustrated that the traditional bighorn habitat model was inadequate when applied to four Eastern Mojave Desert mountain ranges because of its unrealistic distance to permanent water requirement. It was also determined that a single habitat definition could not be formulated that worked equally well on all …

A Family Sketchbook, Eva M. Johnson

The Bridge

Father, Otto Christensen, was born in 1875 on a farm

that lay on the edge of the North Sea in Jutland, Denmark.

When he was four his mother died and his father remarried.

He spent his childhood tending sheep and cattle and playing

in the sand dunes and heather along the sea. He must have

spent much time dreaming his dreams.

Better Flock Benchmarking From Wether Trials, David Windsor, Bronwyn Clarke

Journal of the Department of Agriculture, Western Australia, Series 4

Genetic links between wether trials put in place by Agriculture Western Australia's Wool Program are helping farmers benchmark the productivity of their flocks on a statewide basis. David Windsor and Bronwyn Cklarke report on the progress to date.

Study Of Livestock Production Levels In Three Communities Near The City Of Riobamba, Raul Rolando Nuñez Lopez

Theses and Dissertations

This study was done by administering household surveys to 50% of the families in the three communities. Families were selected through stratified random sampling. This allowed us to determine how much families are exploiting species that have a significant level of production as well as whether they use them for a commercial activity or subsistence. With regard to cows, 60.40 ± 4.72% of families use them. Each family has an average of 1.68 ± 0.21 cows. Productive cows make up 36.9% of the above percentage, which is a majority. The measured rate of production was 6.48 ± 0.25 L/cow/day. Overall, …