摘要:

Extract

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34365

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

Three parasites(Moniezia expansa, Haemonchus contortus, andFasciola hepatica), removed from mebendazole-treated sheep at arbitrarily chosen times after treatment, showed detrimental changes in energy metabolism. The changes produced inM. expansaincluded a reduction in total nucleotides, ATP levels and ATP/ADP ratios, that matched observations madein vitro. Scoleces were found to be more acutely stressed than gravid segments and there was no destrobilation. Similar changes were recorded inH. contortus, though it was evident that neither of the times chosen for assays coincided with maximum drug effect. InF. hepaticathe total nucleotide concentration and ATP/ADP ratio increased up to 18 hours after treatment, but after 30 hours both values were significantly depressed.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34366

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

A survey was conducted at a New Zealand meat processing establishment to establish the occurrence and extent of bruising in cattle presented for slaughter for human consumption, and its significance for the New Zealand economy. Bruising was shown to be directly related to the method of handling of the cattle before slaughter and the position and maximum width of truck and trailer gate openings. Bruising occurred consistently more often to the right side of the animal than the left, and could be minimized by covering gate posts and uprights of transport vehicles.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34367

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

Haematological tests were performed at intervals over a 102-hour period on bovine, ovine, equine and canine blood samples collected into five commonly used anticoagulants — EDTA(K3) at two different concentrations, EDTA(Na2), oxalates and heparin.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34368

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

162 rodents, largely from dairy farms in Taranaki and the Waikato, were examined for evidence of leptospiral infection. 33 (20%) revealed cultural and/or serological evidence of leptospiral infection.L. ballumwas isolated from the kidneys ofRattus norvegicus, R. rattusandMus musculuscollected in Northland, the Hauraki Plains, and in southern Taranaki.L. copenhageniwas isolated from the kidneys ofR. norvegicuscollected in rural rubbish tips near Tirau and Morrinsville. No evidence ofL. hardjoorL. pomonainfections were found among the rodents. Factors contributing to the distribution and incidence of leptospiral infections among rodents, cattle and humans are discussed.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34369

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

A theory of beef production is presented as a logical basis for discussion. It offers data to support its validity through successful application to commercial beef breeding herds. The five time-related factors which have the greatest effect on herd performance and profitability are considered to be a) the number of heifers in oestrus on the first day of mating which is related to nutrition, body weight, management and previous herd performance; b) the length of the interval from calving to first heat and conception which is related to the time of calving and mating, nutrition and management; c) the gestation length, e.g. Angus 273–279(6) and Charolais 284–96(1)(2)(7); d) the percentage calving in the first 21 days and e) the repeatability of herd performance within limited mating systems over a 3–5 year period.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34370

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

Ten cases of sudden drop in egg production were investigated. All outbreaks occurred between April and October. In 4 cases infectious bronchitis was diagnosed. One case each was attributed to infectious laryngotracheitis, avian monocytosis, fowl cholera, cage layer fatigue, and fatty liver haemorrhagic syndrome. One case remained undiagnosed.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34371

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

摘要:

The symptoms, diagnosis, treatment and necropsy findings in aFilaroides osleriinfection in a dog are described. Changes in respiratory function before and after treatment are recorded and the possible significance of bronchospasm as a cause of dyspnoea is discussed.

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34372

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34373

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor

ISSN:0048-0169    

DOI:10.1080/00480169.1977.34374

出版商:Taylor & Francis Group    

年代:1977

数据来源: Taylor