Search Results
Results 451 - 500 of 624
< 3 4 5 6 7 8 9 10 11 12 13 >
Jones B E - - 1993
Examples are given of general management methods that will reduce the contamination of domestic food producing animals. Such methods will decrease the radiation exposure of the animal which could be of importance for its health and long-term production of food but more importantly in the short term they will decrease ...
Jezierski T - - 1993
Atherosclerosis was induced in rabbits by feeding them a 2% cholesterol diet (CHOL) during a 5-week period. Twelve rabbits were fed with increasing amounts of CHOL food until the ad libitum level was reached, whereas in 24 other rabbits the food was limited to the amount eaten by the lowest ...
Chiel H J - - 1993
Freely behaving Aplysia californica can learn that food is inedible. Animals were given access to seaweed tied into canvas and attached to a force transducer. Animals repeatedly found the stimulus, attempted to ingest it, and failed. The force transducer provided an objective record of the number of attempts made by ...
Huston K - - 1993
The heritability and diagnosis of congenital abnormalities in food animals have been reviewed from the viewpoint of practitioners, clinicians, and researchers. At least 632 putative mutant genes have been cataloged and listed according to the principal body system affected and mode of inheritance (see Tables 1 and 2). Implications of ...
McVey D S - - 1993
Although there are few, well-characterized PIDs of food animals, these diseases are important because they tend to be severe and with no cure. Most animals with PID do not receive the intensive and aggressive care required for survival: Veterinarians may be consulted only when the animals are in the terminal ...
Berkowitz D B - - 1993
The genetic events associated with traditional selection have implications for the food safety of transgenic animals. Selection has been empirical, relying on the use of the best animals for breeding. Molecular techniques are now being used to identify the genes selected and to describe the differences between alleles that are ...
Sessink P J - - 1993
Little is known about the exposure of animal caretakers to toxic agents during the administration of such chemicals to laboratory animals. In this study, we have investigated the environmental contamination with cyclophosphamide (CP) in an animal laboratory where mice were housed and injected with this compound. Also the contamination of ...
Chiesa C - - 1993
From 1981 to 1991, 37,666 human, animal, food and environmental samples were cultured for Yersinia pseudotuberculosis using direct plating methods and/or cold enhancement techniques. Despite an intensive surveillance and adequate culture methods, Y. pseudotuberculosis was isolated from stools of 0.05% (5/9,720) of patients with acute enteritis, and alimentary tracts of ...
Yahav S - - 1993
Naked mole rats (Heterocephalus glaber) lead a strictly subterranean existence and appear to be naturally deficient in cholecalciferol (D3). Oral supplementation with D3 (Ds) led to a 1.8-fold increase in food intake and the associated enlargement (1.4-fold) of the caecum. The effect of Ds, and the concomitant increase in food ...
Kopcha M - - 1992
We attempted to determine the extent to which nonsteroidal anti-inflammatory drugs (NSAID) are used in the treatment of food animals, and whether withdrawal times for milk and slaughter are recommended to clients. A survey questionnaire was mailed to a stratified random sample of 2,000 veterinarians whose practices were at least ...
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 ...
< 3 4 5 6 7 8 9 10 11 12 13 >