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Results 451 - 500 of 614
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Debruyckere G - - 1992
We examined the relationship between the consumption of meat from animals treated with anabolic steroids and the detection of these steroids in the athletes consuming this meat. We proved that clostebol metabolites (e.g., 4-chloro-delta-4-androstene-3 alpha-ol-17-one) in the urine of one of the volunteers involved in a feeding experiment were due ...
Shaw J R - - 1992
A cross-sectional epidemiologic study was conducted to evaluate two objectives. The first was to determine the knowledge, attitudes, and behaviors of large animal (dairy) veterinarians, dairy farmers, and dairy processors in Michigan toward the use of bovine somatotropin (BST). The second was to compare and contrast the data from the ...
Amstutz H E - - 1992
Assessment of food animal lameness provides a great challenge but also can be extremely rewarding for the practitioner. An accurate diagnosis is essential if treatment, control, and prevention are to be successful. All facets of veterinary medicine and animal science must be applied in order to make an accurate diagnosis. ...
Wilson J H - - 1992
Preservation of the art of physical examination of food animals is warranted because veterinarians are still asked to assess sick valuable individuals as well as sick animals that may be representative of herd or flock problems. It is very important to establish a consistent, thorough routine for physical and rectal ...
Dickman C R - - 1992
Although overlooked in many field studies, commensal and mutualistic interactions occur frequently between species of terrestrial vertebrates. Potential advantages for individuals in mixed-species associations are very diverse, and include reduction in parasite load, reduced risk of predation, and increased access to food and other resources. Recent theoretical and experimental studies ...
Teyke T T Center for Neurobiology and Behavior, New York State Psychiatric Institute, - - 1992
The behavior of the marine mollusc Aplysia was examined under different experimental conditions designed to determine the food searching strategy of the animals. In a small, open field tank with still water, the animals took an average of 42 min to find a piece of seaweed, even though the stimulus ...
Cherian S - - 1992
Glycogen phosphorylase (1,4-alpha-D-glucan:orthophosphate-alpha-D-glucosyl transferase, EC 2.4.1.1) was partially purified from two bivalves found in different habitats, viz. Villorita cyprenoides, an estuarine bivalve, and Sunetta scripta, a marine bivalve, and their properties compared with other animal phosphorylases. While the kinetic mechanism was same as that of phosphorylases from other animal sources, ...
Brambilla G - - 1992
In the zootechnical field, there is a strong need to correlate analytical results with biological effects of beta-2 adrenergic agonist drugs on animal health, food processing and human toxicology, taking into account the peculiarity of their administration (long-term treatments with doses tenfold as high as the therapeutical ones). The opportunity ...
Hess C E - - 1992
American agriculture is being challenged to produce food in a way that is environmentally sound, that enhances human health, is safe, and whose cost is competitive internationally. The tools of biotechnology offer new techniques for modifying biological traits in a much more directed way than is possible with conventional animal ...
de Queiroz R G - - 1991
From October until July 1991, CDC miniature light traps were set up and man and animal-landing and biting catches were made in 100 different catching zones, in different habitats, throughout the ACL focus of the Serra de Baturité. Female Lutzomyia whitmani and Lu. wellcomei appeared to be highly anthropophilic and ...
Jackson G J - - 1991
Microscopic animals associated with foods include free-living and saprophytic invertebrates, parasites of hosts other than humans, and parasitic animals specifically designated as food-borne that can infect a human host by the gastrointestinal route. The first general method used to screen for food-borne species was digestion with pepsin and hydrochloric acid ...
Longair J A - - 1991
All animals that are to be killed, whether for food, for humane reasons, or because they are homeless, must receive a quick and painless death. In some smaller communities, veterinary or humane society expertise may not be readily available to humanely kill stray and unwanted animals. An alternative that provides ...
Khan R A - - 1991
Prevalence of species of Sarcocystis in muscle of 36 caribou, Rangifer tarandus terraenorae, shot in Newfoundland, Canada, was 53%. A greater percentage of infected animals were obtained from the central part of the island. The highest concentration of microscopic sarcocysts, 1/mm2 of tissue, was observed in a 5-year old animal. ...
Li X - - 1991
The People's Republic of China has a large number of animal parasites transmitted through the ingestion of food products. Approximately 20 species of parasites in animals and man are reported from most of the provinces and autonomous regions of the country. The major food-borne parasitic zoonoses are reported from pigs, ...
Yousef M K - - 1991
To meet the food demands of the ever-increasing world population, man's only major future land bank is the arid lands. However, their exploitation has been limited and constitutes a major challenge to many scientific disciplines. Under the present conditions of hunger and/or malnutrition, a large-scale expansion in food production is ...
Coates M E - - 1991
Dietary restriction in the maintenance of animals for aging research has been the subject of intense recent interest. This interest may be justified. Current formulas for laboratory animal diets were a natural progression from those for farm animals, but the objectives and conditions for maintaining laboratory and farm animals are ...
Pollreisz J H - - 1991
Mass medication is a health management tool that, when used appropriately, results in cost savings and sound economic return to the food animal producer. Careful planning and consideration should precede the implementation of a mass treatment program, clearly defining the goal to be achieved and a detailed plan of execution. ...
Shell E W - - 1991
The husbandry of aquatic animals originated in China in approximately 1,100 B.C., thousands of years after the beginning of animal agriculture. The practice did not reach Europe until the Middle Ages. Aquaculture apparently was not very important in Western Europe. The early immigrants from that region did not include fish ...
Page S W - - 1991
Diethylstilboestrol is a non-steroidal orally active oestrogen that in the past has been widely used in a variety of conditions in both medical and veterinary fields. In recognition of potential systemic availability to man of DES in the tissues of treated food-producing animals, together with an understanding of the potential ...
Ekholm A - - 1991
It has recently been proposed by Kraig et al. that H+ is compartmentalized during complete ischaemia, with glial cells of hyperglycemic animals becoming excessively acidic (pH approximately 5.2), compared to neurons (pH approximately 6.2). In part, the evidence for that is a discontinuous delta PCO2/delta lactate relationship, with PCO2 precipitously ...
Pliner P - - 1991
Research from the anthropological, psychological, and animal behavior literatures suggests that foods of animal origin have a special status. In two studies we explored the question of whether individuals are more neophobic with respect to animal foods than non-animal foods. In the first study male and female subjects, after reading ...
de Waal A - - 1991
Dehydration, to varying degrees, will inevitably occur in horses participating in endurance trail rides. This water loss is directly related to the amount of body water lost through evaporative cooling, that in turn being related to the amount and rate of work performed, and to the environmental temperature and humidity. ...
Page S W - - 1991
Chloramphenicol is a broad-spectrum antibiotic which has enjoyed extensive use in both medical and veterinary practice. Shortly after its introduction in the late 1940s, the use of chloramphenicol was associated with the induction of an idiosyncratic form of aplastic anaemia in man. This rare and unpredictable adverse effect has since ...
Page S W - - 1991
The use of chloramphenicol in the horse is now prohibited as horses are classified as food-producing animals. However, chloramphenicol has until recently been widely available for oral, intramuscular or intravenous administration. A critical appraisal of the published literature on the use of chloramphenicol in the horse clearly demonstrates that there ...
Blecha F - - 1991
Cytokines such as human, bovine, and porcine interferons and human and bovine interleukin-1 and interleukin-2 have been used in vivo in cattle and pigs. Colony-stimulating factors and tumor necrosis factor alpha have been evaluated in vitro in food animals. Studies to evaluate cytokines in domestic food animals have shown that ...
Jilge B - - 1991
Although the rabbit is an almost 'classical' laboratory animal, chronobiological research in this species is in its infancy. It appears not even clear, whether the rabbit is a predominantly diurnal, crepuscularly active or nocturnal animal. In an ordinary, non sound-isolated animal room rabbits exhibited elevated locomotor activity, hard faeces excretion, ...
Flores B M - - 1990
Campylobacter cinaedi and C. fennelliae have been associated with proctocolitis, bacteremia, and asymptomatic rectal infection, primarily in homosexual men. To more directly assess the pathogenic role of these organisms, we studied their disease-producing potential in 12- to 25-day-old pig-tailed macaques (Macaca nemestrina). Four infant monkeys were challenged with 10(8) to ...
Koe B K - - 1990
Specific serotonin reuptake inhibitors constitute a new class of psychotherapeutic agents that promote enhanced central serotonergic neurotransmission in animal studies. Sertraline, a member of this class, exhibits considerable potency and specificity in inhibiting serotonin neuronal reuptake in preclinical studies. Thus, it is likely to exert antidepressant activity without significant anticholinergic, ...
Wiederhold M L - - 1990
The gravity receptor organs of gastropod molluscs, such as Aplysia californica, are bilateral paired statocysts, which contain dense statoconia within a fluid-filled cyst. Gravitational forces on the statoconia are sensed through their interaction with ciliated mechanoreceptor cells in the wall of the cyst. Larval Aplysia contain a single statolith within ...
Hurnik J F - - 1990
The concern for food animal well-being is one of several serious issues facing intensive animal agriculture. This paper focuses on ethical concepts relevant to the treatment of farm animals and discusses the reasons for social attractiveness of animal welfare philosophy. It defines animal quality of life to be a function ...
Kerr L A - - 1990
Insecticides, nitrates, gossypol, copper, and plants are a few of the common toxicoses observed in livestock in a particular specie due to various factors. Some species may have anatomical or physiological uniquenesses making them more susceptible to certain agents. Another specie may be exposed to some agents more frequently than ...
Bhunia A K - - 1990
Pediocin AcH, a bacteriocin of Pediococcus acidilactici H, inhibits the growth of several food spoilage and pathogenic bacteria. The antigenic property of partially purified pediocin AcH was tested by immunizing mice and a rabbit. Pediocin AcH was not immunogenic in these animals as determined by immunoblotting even after conjugation to ...
Nunn S - - 1990
The mucosal exudate from the gastrointestinal tract of six adult female New Zealand rabbits was studied using scanning electron microscopy and without any attempt being made to clean the luminal surface before screening. The exudate consisted of mucus, debris and bacteria. Qualitative assessment showed that the nature and distribution of ...
Dorman D C - - 1990
Companion animal exposures to volatile hydrocarbons and turpentine accounted for 2% of all calls received by the IAPIC in 1987. Volatile hydrocarbons are also used as vehicle solvents (e.g., pesticides), and both vehicle and active ingredients pose a significant hazard to companion animals. The most significant clinical effects of the ...
Tester J R - - 1990
This paper reviews information on the effects of biological and environmental factors on activity rhythms of wild animals monitored by radio telemetry. Variations in radio signals received from free-ranging animals are used to determine the pattern of activity and rest. Telemetry is especially effective for obtaining activity data from wild ...
Blecha F - - 1990
In the production of domestic food animals several situations exist where disease decreases production efficiency. Some of these diseases are exacerbated by a lowered or compromised immune response of the host. If immunomodulators can be used to augment immune function at critical periods during the production of food animals, such ...
Giese W W - - 1989
The nuclear reactor accident in Chernobyl stimulated new discussions and experiments on the question, how and to what extent the radiocesium-concentration in animal derived foods can be reduced. In a brief review this paper describes the use of two groups of feed additives as already applied in laboratory experiments during ...
Kuiper-Goodman T - - 1989
Ochratoxin A (OA) is a mycotoxin which has been found to occur in foods of plant origin, in edible animal tissues, as well as in human blood sera and tissues. The ability of OA to move up the food chain is aided by its long half-life in certain edible animal ...
Rosen S C - - 1989
Food-induced arousal in Aplysia is characterized by a progressive increase in the speed and strength of biting responses elicited by a seaweed stimulus. Data from semi-intact and dissected preparations suggest that the identified, serotonergic, metacerebral cells (MCCs) of the cerebral ganglion contribute to food-induced arousal by enhancing the strength of ...
Kallfelz F A - - 1989
Questions regarding pet animal nutrition are probably among the most frequent queries encountered by companion animal veterinarians. Given the plethora of pet food products available and the amount of advertising used to promote them, it is not surprising that pet owners have concerns as to what they should feed their ...
Livingston B T - - 1989
The mechanism of determination of early embryonic cells has been investigated using sea urchin embryos. An efficacious method of isolating blastomere pairs from the animal or vegetal half of sea urchin embryos was developed. The overt differentiation of separated animal and vegetal blastomere pairs resembles that of separated animal and ...
Feingold K R - - 1989
Previous studies have demonstrated that a variety of conditions that result in an increase in food intake lead to an increase in small-intestinal cholesterol synthesis. In the present study, it was determined whether hyperphagia induces an increase in cholesterol synthesis in segments of the small intestine excluded from contact with ...
Figler R A - - 1989
Arginine vasotocin (AVT) and neurophysin (NP) levels were measured by radioimmunoassay in two species of sea turtle, the olive ridley, Lepidochelys olivacea, and the loggerhead, Caretta caretta, during the brief period of nesting and oviposition. In both species, AVT was low in animals which were not reproductively active. AVT was ...
Kopcha M - - 1989
Presently, in the United States, there are no nonsteroidal anti-inflammatory drugs, except aspirin, that are approved for use in animals intended for food production. Use of phenylbutazone, flunixin meglumine, and dipyrone for treatment of food animals may be considered in special circumstances. Such use requires strict adherence to FDA guidelines ...
Greenhalgh D G - - 1988
Adriamycin-impaired wound healing in mice was found to be related to the degree of weight loss which in turn was dependent on the dose given. Treated animals had an initial decrease in food consumption that correlated with initial weight loss. After approximately 7 days, food consumption returned to normal but ...
Laemle L K - - 1988
Vasoactive intestinal polypeptide (VIP)-like immunoreactivity in the anterior hypothalamic area (AHA) was studied in 15 bats which are seasonal hibernators, using the unlabeled antibody enzyme method of Sternberger. Our results showed that the density of immunoreactive fibers and terminal plexuses in the AHA was greatest in euthermic animals and decreased ...
Kerkut G A - - 1988
1. With the development of techniques of gene transfer, human genetic defects such as sickle cell anaemia, phenylketonurea, cystic fibrosis, haemophilia, Huntington's chorea, etc. will be eliminated. Ninety nine percent of humans in the year 2500 will be much the same as at present, but healthier. 2. Studies of Comparative ...
Van Dijk J E - - 1988
The significance of food allergy as a primary cause for gastrointestinal disturbances in domestic animals, especially calves and piglets, is discussed. The immunological backgrounds and pathogenesis are described in some detail. The clinical and pathological manifestations in animals are related to those in man. Diagnostic possibilities, therapy and prevention, as ...
Steely W M - - 1987
The possible benefit of either partial splenectomy or splenic autotransplantation as protection against post-splenectomy sepsis was investigated. Sprague-Dawley rats were challenged with intravenous Streptococcus pneumoniae and the incidence of bacteremia and mortality were recorded. Animals were divided into four groups based upon the amount of splenic tissue conserved: total splenectomy ...
Laties V G - - 1987
Imposing moderate amounts of food deprivation on an animal allows the use of reward techniques in studying behavior and poses fewer ethical problems than does the use of aversive procedures. Possible discomfort caused by experiments using aversive stimulation frequently can be reduced. Habituating animals to experimental procedures is almost always ...
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