摘要:

Extract

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34871

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Intramuscular injections (10mg) of prostaglandin F2ä were administered to 19 pregnant sows in one herd on either the 112th or 113th day of gestation and a similar number of untreated sows served as controls. Induced sows for up to 6h after injection generally showed/more walking, drinking defaceating and postural changes. Over the last 20h prepartum they spent more time lying and urinated more frequently. Mean interval from injection to onset of parturition in treated sows was 24.5h and 16 of them commenced farrowing during the working day, compared with 6 in the control group. Induction of parturition did not influence litter size at birth, piglet bodyweights at birth or 14 days of age, the incidence of the mastitis, metrititis agalactae syndrome, re-breeding interval of the sow or size of the subsequent litter at birth. Farrowing time was significantly longer (6.48h v 4.08h) for treated sows and litter pre-weaning mortality was higher but not significantly so. Most piglet deaths in each group resulted from overlaying or starvation but mortality from anaemia and septicaemia occurred only in the treated group. It is considered that the technique could have practical application on well-managed intensive pig units.

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34872

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Serum samples were examined for evidence of leptospiral agglutinins from 928 sheep from 45 lines and kidneys from 12 of these lines for evidence of leptospiral infection. All sheep had been submitted for slaughter at meat works in the Manawatu.

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34873

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

The nerve supply to the intrinsic laryngeal muscles of the horse was studied by gross dissection and by electromyography which was carried out before, during and after section of various intralaryngeal nerve branches. The anatomical relationships and passage of the laryngeal nerves throughout the larynx were defined. Unlike the dog and man there was no evidence of the passage of motor nerve fibres from one side of the larynx to the other.

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34874

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Thirty-eight species of small cetaceans termed “dolphins” and “porpoises” are listed. This review is a contribution to the growing community and veterinary interest in the welfare and diseases of these animals.

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34875

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Two dry-cow therapy products were evaluated in seven factory-supply dairy herds in the Waikato area. A product containing neomycin sulphate and the benzathine salt of penicillin (Neopen D.C. White; Smith-Biolab) was used in five herds, and one containing benzathine cloxacillin (Orbenin, Beecham) was used in two herds. Non-treated control cows were included in each herd. Both products were effective in eliminating intramammary infections withStaphylococcus aureus, Streptococcus uberis, andStreptococcus agalactiae. Efficacy of dry-cow therapy againstS. aureuswas 83.8% and 85.2% respectively. Spontaneous cure rate among controls was 30.8% forS. aureusduring the dry period. Spontaneous cure rate forStr. uberiswas 50%, while dry-cow therapy eliminated 100% and 77.8%, respectively, for the two products. Dry-cow therapy with either product eliminated more than 90% ofStr. agalactiaeinfections while spontaneous cure rate was only 28.6%. These results further support the effectiveness of dry-cow therapy in reducing the level of subclinical mastitis in dairy herds by shortening the duration of intramammary infections.

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34876

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor

摘要:

Extract

ISSN:0048-0169    

DOI:10.1080/00480169.1982.34877

出版商:Taylor & Francis Group    

年代:1982

数据来源: Taylor