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Results for “SWINE DISEASES”

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At least 919 records · Page 51Linked to original sources
PubMed1975

Asymmetric hindquarter syndrome (AHQS) in the pig.

Outbreaks of the asymmetric hindquarter syndrome (AHQS) in two pig herds are reported together with the results of test matings and dissection studies on affected pigs. The condition (apparently identical with that described in Germany in 1967), is characterised by a variable asymmetry of the hindquarters and particularly of individual muscles of the posterior, lateral and medial aspects of the thigh. It does not noticeably interfere with locomotion but can adversely affect carcase conformation and may detract from the usefulness of carcase dissection studies as a basis for genetic selection. AHQS has a familial incidence and is usually first detected clinically after weaning. A variety of degenerative and dystrophic changes have been seen in the muscles of AHQS pigs but these are not constantly present in nor confined to 'undersized' muscles. The precise aetiology of AHQS is still unresolved but it is concluded that it probably occurs post-natally and that some pigs have a genetic liability to develop the condition.

Animals↗
PubMed1975

Investigation of suspected cases of mycotoxicosis in farm animals in Britain.

Mycotoxins were detected in 13 out of 131 feed samples examined over two years. Screening of feeds associated with cases of suspected mycotoxicosis occurring in farm animals over a further 12 month period showed that most incidents occurred during the winter and involved mainly cattle and pigs fed concentrates. A haemorrhagic syndrome in cattle and abortions in sows were most frequently connected with mouldy food. One or more known toxins (the aflatoxins, ochratoxin A, sterigmatocystin and zearalenone) were detected in three out of 65 cases and a wide variety of fungi were isolated. Toxicity to experimental animals was demonstrated in four out of 22 samples.

Animal Feed↗
PubMed1975

Mycotoxicosis.

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Aflatoxins↗
PubMed1975

The Zoonoses Order, 1975.

The coming into effect on July 14 of the Zoonoses Order 1975, marks a new and important step in veterinary public health. The Order makes available powers to investigate and control Salmonella and Brucella infections in animals and Salmonella infections in birds which present a threat to human health. Any Salmonella and Brucella infection becomes reportable in certaain species when organisms have been isolated by laboratory test. Veterinary surgeons and livestock owners may be involved in this obligatory procedure. The statutory powers to investigate incidents and apply restrictions on the movement of animals, birds and their products are not limited to reportable species: they cover a much wider range of animals and birds. They will be held in reserve and used only when necessary because of a hazard to public health; the use of restrictions will be limited to cases involving a very serious threat to man. The information collected from reports and investigations will add considerably to the epidemiological knowledge of these infections and so allow improved methods of control to be developed. Some of these measures already in operation are described, together with others possible for the future.

Animals↗
PubMed1976

Effect of lactation on the immune response to gastrointestinal nematodes.

The immune expulsion of gastrointestinal nematodes is impaired during lactation by the inhibition of the lymphocyte mediated component. As a result the population of worms may increase. At the same time, the fecundity of female worms in previously immune hosts may increase to approach that of worms in fully susceptible animals. There is good evidence that these events are primarily endocrinal in origin but although prolactin is probably involved, certain anomalies exist. These may reflect differences in the secretion pattern of the hormone in different phases of reproduction or they may indicate an interrelationship with a second hormone, for instance, adrenal glucocorticoids.

Animals↗