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Utah State University

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1997

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Articles 31 - 60 of 91

Full-Text Articles in Life Sciences

Calf Scours Simplified, Clell Bagley Jul 1997

Calf Scours Simplified, Clell Bagley

All Current Publications

Virtually stacks of material have been written about calf scours and yet it remains as one of the major problems for beef calves. Enough is now known that we should be able to prevent or at least control the great majority of scours outbreak problems.

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Infectious Cattle Diseases And Vaccines, Clell Bagley Jul 1997

Infectious Cattle Diseases And Vaccines, Clell Bagley

All Current Publications

Vaccines are available for 20 to 30 infectious diseases of cattle. With the various brand names and different combinations available, the choice of vaccines can become very complicated. Calves vaccinated under 6 months of age should generally be re-vaccinated again after that age to provide a longer lasting immunity.

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Weak Calf Syndrome Or Bvd Fetal Infection, Clell Bagley Jul 1997

Weak Calf Syndrome Or Bvd Fetal Infection, Clell Bagley

All Current Publications

A serious health problem of newborn calves was recognized 20 years ago and termed “weak calf syndrome”(WCS). The Bovine Virus Diarrhea (BVD) virus was often isolated from affected calves and from these herds. In recent years, veterinarians have again been looking at the effects of the BVD virus on the fetus.

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Management For Weaning Healthy, Marketable Calves, Clell Bagley Jul 1997

Management For Weaning Healthy, Marketable Calves, Clell Bagley

All Current Publications

Weaning is an extremely stressful time for beef calves and involves the potential for severe economic loss. The most common problems usually involve respiratory and/or digestive diseases. Weaned calves should be retained for 3–6 weeks after weaning.

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Mastitis Prevention Program, Clell Bagley Jul 1997

Mastitis Prevention Program, Clell Bagley

All Current Publications

A great deal of money and effort have been expended over the years to find methods for control of mastitis in dairy cows. Both European and U.S. workers have developed programs of prevention that are very similar. These preventive programs require implementation of the seven basic procedures outlined below. It has been shown repeatedly that this programs works.

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Drug Use In Food Animals, Clell Bagley Jul 1997

Drug Use In Food Animals, Clell Bagley

All Current Publications

Producers should be aware that there are four ways to legally obtain and use antibiotics and other drugs in food animals. The first, and most common source, is over the counter (OTC) drugs, labeled for specific uses.

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Tube A Lamb, Save A Life, Clell Bagley Jul 1997

Tube A Lamb, Save A Life, Clell Bagley

All Current Publications

No abstract provided.

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Dystocia (Difficult Lambing), Clell Bagley Jul 1997

Dystocia (Difficult Lambing), Clell Bagley

All Current Publications

If the flock is lambed on the range, assistance is not given to individual ewes. Catching those needing help causes so much disruption of ewes with normal lambs and results in so many orphans, it is detrimental. One of the primary advantages of shed lambing a range flock is being able to better assist during birth and those first crucial hours of life.

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Breeding Soundness In Rams: How To Do It..., Clell Bagley Jul 1997

Breeding Soundness In Rams: How To Do It..., Clell Bagley

All Current Publications

In order for ram breeding soundness examinations to be of maximum value to producers they must be relatively thorough as well as consistent. There is so much normal variation between rams that we cannot afford to add additional variability by lack of observation or inconsistent techniques.

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Reproductive Diseases Of Sheep, Clell Bagley Jul 1997

Reproductive Diseases Of Sheep, Clell Bagley

All Current Publications

Diseases which reduce the reproduction rate are common in Utah flocks. The major problem seen in the ewes is abortion. With rams, the major disease affecting reproduction is ram epididymitis.

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Mycotoxins, Clell Bagley Jul 1997

Mycotoxins, Clell Bagley

All Current Publications

Certain metabolites of some fungi (molds) are poisonous (toxic). Fungal poisons have been known for many years, but they were not considered a major factor in animal disease until fairly recently. Because the prefix myco- refers to fungi, these toxins are termed mycotoxins. Penicillin is derived from a fungus and could be termed a mycotoxin, in relation to bacteria which are sensitive to it.

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Clinical Trials With Copper Supplementation, Clell Bagley, Norris Stenquist, Dennis Worwood Jul 1997

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.

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Comparisons Of Rations At Weaning, Usu 1994, Clell Bagley, Norris Stenquist Jul 1997

Comparisons Of Rations At Weaning, Usu 1994, Clell Bagley, Norris Stenquist

All Current Publications

Calves in three groups were fed grass hay for 24–36 hours after weaning. For the next 2 weeks they were fed the rations below. For the final 2 weeks, all groups were fed ration number two. Read this article to see what happens next.

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Controlling Coliform Mastitis, Clell Bagley Jul 1997

Controlling Coliform Mastitis, Clell Bagley

All Current Publications

Coliform mastitis is usually considered as an acute disease although some milder forms and even chronic cases do occur. It is caused by the bacterial organism Escherichia coli, hence the name, coliform. Other, related organisms, Enterobacter aerogenes and Klebsiella pneumoniae, are also often called “coliforms.”

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Internal Parasites, Clell Bagley Jul 1997

Internal Parasites, Clell Bagley

All Current Publications

Internal parasites and how they affect animals.

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Epididymitis In Range And Purebred Rams, Clell Bagley, Mark Healey Jul 1997

Epididymitis In Range And Purebred Rams, Clell Bagley, Mark Healey

All Current Publications

Fact sheet describes epididimitis, its causes, its effects, and control of the disease.

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Ammonia Toxicity In A Herd Of Beef Cattle, Clell Bagley Jul 1997

Ammonia Toxicity In A Herd Of Beef Cattle, Clell Bagley

All Current Publications

A Utah producer lost 22 out of 50 head of cows in May, due to ammonia toxicity. He used a liquid fertilizer tank to haul water to the cattle. He had done this for two years previously, and with washing out thoroughly, there had been no problem. But this time some fertilizer was evidently left in, mixed with the water and resulted in the toxicosis.

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Beef Quality Assurance Notes, Clell Bagley Jul 1997

Beef Quality Assurance Notes, Clell Bagley

All Current Publications

Most of us have felt that injections given to a calf early in its life would be of little problem by the time it went to slaughter. We were WRONG!!! Colorado State University has provided the data and the pictures to prove it. In fact, 90% of the lesions found at slaughter originated during the cow-calf, stocker or early feeding periods. And, injections given while the calf is young caused greater lesions than those given when it was older. The study followed calves injected at branding or weaning and found a high incidence of lesions and blemishes when they went …

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Disease Resistance In Cattle, Clell Bagley Jul 1997

Disease Resistance In Cattle, Clell Bagley

All Current Publications

The ability of cattle to resist the many disease processes to which they are exposed is truly amazing. And yet, when several adverse factors combine, this resistance can be overcome and result in a herd disaster which is just as amazing. This discussion will be broken down into four major areas. But it is the combined functioning of all four areas that actually provides disease resistance.

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Summary Of Diseases Of Range Sheep, Clell Bagley Jul 1997

Summary Of Diseases Of Range Sheep, Clell Bagley

All Current Publications

No abstract provided.

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External Parasites, Clell Bagley Jul 1997

External Parasites, Clell Bagley

All Current Publications

No abstract provided.

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Swiss Cheese Consortium Project Report, Various Authors Jun 1997

Swiss Cheese Consortium Project Report, Various Authors

Other Documents

No abstract provided.

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Ingredient Substitution, Georgia C. Lauritzen Ph. D. Apr 1997

Ingredient Substitution, Georgia C. Lauritzen Ph. D.

Archived Food and Health Publications

Publication provides ingredient substitutions and equivalent measurements for cooking purposes.

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Landscape And Garden Weed Control, Steven Dewey, Dan Drost, Larry Rupp, Larry Sagers Apr 1997

Landscape And Garden Weed Control, Steven Dewey, Dan Drost, Larry Rupp, Larry Sagers

All Current Publications

Weeds around the home are a general or injury. Often a veterinarian is needed to nuisance, mar the natural beauty of a landscape, remove the seeds. and decrease the value or marketability of Weeds cost Utah farmers millions of dollars residential properties. Weeds ruin lawns, each year in damage to both crops and livestock. gardens, and flowerbeds. Some weeds even grow The consumer pays more for food because of through blacktop. Weeds may cause hayfever, be these losses. a fire hazard, and harbor insects or diseases. Much of the damage caused by weeds They cause flat tires, puncture bare feet, …

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Bovine Respiratory Disease, Clell Bagley Jan 1997

Bovine Respiratory Disease, Clell Bagley

All Current Publications

Disease of the respiratory tract is a major problem for cattle and it continues to cause serious economic losses for producers. Bovine respiratory disease (BRD) causes increased death losses as well as medication costs, labor, and lost production. Many different infectious agents may cause similar clinical signs. Multiple agents are often involved in the development of BRD.

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Nutrient Limitation Of Oligotrophic Sockeye Salmon Lakes Of Idaho (Usa), Wayne A. Wurtsbaugh, H. P. Gross, Chris Luecke, Phaedra E. Budy Jan 1997

Nutrient Limitation Of Oligotrophic Sockeye Salmon Lakes Of Idaho (Usa), Wayne A. Wurtsbaugh, H. P. Gross, Chris Luecke, Phaedra E. Budy

Watershed Sciences Faculty Publications

"Phytoplankton production in lake ecosystems is frequently controlled by amounts of nitrogen and phosphorus (Smith 1982, Elser et al. 1990), as well as minor- and micro-nutrients (Wurtsbaugh & Horne 1983, Wurtsbaugh 1988, Lovstad & Bjorndalen 1990). Nutrient limitation is often studied to determine which nutrient(s) should be reduced to control lake eutrophication (Schindler 1974(. Conversely, nutrients have been used for decades to stimulate plankton and, subsequently, fish production in aquaculture (Bardach et al. 1972). More recently, lake fertilization has been used to augment salmon runs for commercial exploitation (Hyatt & Stockner 1985, lye et al. 1988), and it has been …

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Comparison Of The Aquatic Ecology Of Side-Canyons And The Main Channel Of Lake Powell 1997, Wayne A. Wurtsbaugh, Kirsten L. Gallo Jan 1997

Comparison Of The Aquatic Ecology Of Side-Canyons And The Main Channel Of Lake Powell 1997, Wayne A. Wurtsbaugh, Kirsten L. Gallo

Watershed Sciences Faculty Publications

Physical characteristics of lakes are highly interrelated with biological characteristics. We measured and analyzed the physical characteristics of two side canyons in order to better understand differences in productivity between side canyons and the main channel and to provide general information on the characteristics of the lake.

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Fertilization Of An Oligotrophic Lake With A Deep Chlorophyll Maximum: Predicting The Effect On Primary Productivity, H. P. Gross, Wayne A. Wurtsbaugh, Phaedra E. Budy, Chris Luecke Jan 1997

Fertilization Of An Oligotrophic Lake With A Deep Chlorophyll Maximum: Predicting The Effect On Primary Productivity, H. P. Gross, Wayne A. Wurtsbaugh, Phaedra E. Budy, Chris Luecke

Watershed Sciences Faculty Publications

We investigated how epilimnetic fertilization would affect chlorophyll levels and light penetration of oligotrophic sockeye salmon (Oncorhynchus nerka) lakes and how the resulting self-shading would affect primary production of the prominent deep chlorophyll maxima (DCM) of the lakes. Epilimnetic nutrient additions to large mesocosms (330 m3) in Redfish Lake, Idaho, increased levels of primary productivity and chlorophyll a but decreased Secchi depths and light available in the metalimnion and hypolimnion. Redfish Lake and other Sawtooth Valley (Idaho) lakes had DCM in which the mean chlorophyll a peaks were 240-1000% of mean epilimnetic chlorophyll a concentrations. The DCM existed at low …

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Hydroacoustic Assessment Of Abundance And Diel Distribution Of Sockeye Salmon And Kokanee In The Sawtooth Valley Lakes, Idaho, D. Beauchamp, Chris Luecke, Wayne A. Wurtsbaugh, H. G. Gross, Phaedra E. Budy, S. Spaulding, R. Dilenger, C. P. Gubala Jan 1997

Hydroacoustic Assessment Of Abundance And Diel Distribution Of Sockeye Salmon And Kokanee In The Sawtooth Valley Lakes, Idaho, D. Beauchamp, Chris Luecke, Wayne A. Wurtsbaugh, H. G. Gross, Phaedra E. Budy, S. Spaulding, R. Dilenger, C. P. Gubala

Watershed Sciences Faculty Publications

We used dual-beam hydroacoustics and echo integration techniques, combined with midwater trawling and gillnetting, to assess the abundance and distribution of the endangered Snake River juvenile sockeye salmon and resident kokanee (both Oncorhynchus nerka) in Sawtooth Valley lakes of Idaho during September 1991 and 1992. Abundance of O. nerka varied among the four lakes containing this species (12,500–257,000) and varied between years in Redfish Lake (86,400 in 1994 and 241,000 in 1992) and Alturas Lake (230,000 in 1991 and 257,000 in 1992). In Alturas Lake, where piscivore densities were high and zooplankton densities were low, small acoustic targets (≤18 cm …

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Western Dairy Center Project Report, Bruce L. Geller Jan 1997

Western Dairy Center Project Report, Bruce L. Geller

Other Documents

No abstract provided.

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