Ventral Midline Caesarian Section in the Cow

In recent years the employment of caesarian section in the bovine has been increasingly popular and with good reason. Though spectacular, it is very quickly and easily done and has a very good prognosis if done on subjects which lend themselves to surgery. In dealing with a live fetus and a strong healthy dam, the incidence of successful operations should approach 90 to 95 percent. In the absence of contraindications, whenever one encounters a small pelvic outlet, hydrops amnii, an unusually large fetus or torsion of the uterus that cannot be corrected, caesarian section should be considered at once

A Bicentennial Reflection on Veterinary Medicine in Iowa

The bicentennial year of 1976 is an important year to the people of the United States, for during this period we are making a special effort to pause and reflect on the past, evaluate the present, and speculate on the future. The past of veterinary medicine has been colorful and marked with vigor, excitement, and scientific progress, and we anticipate the same for the future

Selected reliability studies for the NERVA program

An investigation was made into certain methods of reliability analysis that are particularly suitable for complex mechanisms or systems in which there are many interactions. The methods developed were intended to assist in the design of such mechanisms, especially for analysis of failure sensitivity to parameter variations and for estimating reliability where extensive and meaningful life testing is not feasible. The system is modeled by a network of interconnected nodes. Each node is a state or mode of operation, or is an input or output node, and the branches are interactions. The network, with its probabilistic and time-dependent paths is also analyzed for reliability and failure modes by a Monte Carlo, computerized simulation of system performance

Fluid and Acid-Base Balance in Cattle: A Guide for Supportive Fluid Therapy

This paper is intended for the bovine practitioner. Fluid and acid-base balance is a complex subject and application of basic principles can be difficult in the busy rural practice. However, while we recognize that the veterinarian\u27s primary role is to assist the animal in elimination of the primary disease, the reward of success will often be enhanced through use of supportive fluid therapy

Clinical Review of Bovine Virus Diarrhea and Vaccination Related Problems

Bovine virus diarrhea (BVD) was first recognized in 1946 in the United States and described as an X disease of cattle in the same year in Canada. It was reported in Sweden in 1948. In 1953, it was reported by Ramsey and Chivers as a mucosal disease

Handling Lameness in Cattle

Often cattle suffer extreme lameness when only one claw is affected and there is no involvement of the interphalangeal joints. many times the pain associated with these lesions may be so severe that the animal will not walk to a feed bunk or graze. This inevitably leads to costly weight losses in the feedlot and decreased milk production in the lactating animal. Some examples of these painful single claw afflictions include sole abscesses, nail or rock punctures, and other traumatic injuries

Some Ideas on the Pathogenesis of Neonatal Calf Scours

Neonatal calf scours have been a costly problem for cattlemen for many years. The disease strikes all types of cattle operations although it is most devastating in the intensified cow-calf herd or dairy herd. For the purposes of this paper neonatal calf scours will be defined as that condition of young calves, usually under ten days of age, which is characterized clinically by severe diarrhea and dehydration. with death occurring within a few days if treatment is not begun at the onset and by the absence of lesions characteristic of other diseases

Bovine Lameness

The diagnosis and treatment of bovine lameness is often shrugged off and neglected by veterinarians since physical examination of the area involved can be a very tedious task. Likewise, the producer often delays in calling for professional help believing the lameness due to a sprain which will soon heal or he is disappointed with the superficial examination and antibiotics given to previous cases

An Atypical Case of Polioencephalomalicia

Polioencephalomalacia (PEM) is a significant feedlot cattle problem here in the midwest. Differentiation of this disease from other diseases that produce central nervous signs such as acute lead poisoning (ALP), thromboembolic meningoencephalomyelitis, hypomagnesemia, and rabies is important to the practitioner as he has to decide on the best course of therapy for recovery