摘要:

Analysis of mitotic chromosomes revealed the consistent lack of one sex chromosome in each of the four tissues studied from an infertile mare. Centromere staining of the chromosomes and sex chromatin studies confirmed that this mare had the karyotype 63XO. Clinically this mare was small for her age and breed, exhibited intractable behaviour while at stud and was never observed in oestrus. Her genitalia appeared normal although the uterus and ovaries were small and macroscopic follicles were absent. Histologically, a number of presumptive atretic Graafian follicles and a discrete area of apparently functional luteal tissue were present in the right ovary. The significance of these findings is discussed and compared with the features of analogous syndromes associated with the XO anomaly in other species. It is suggested that the XO anomaly in the horse may not always be associated with complete sterility.

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34521

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

The incidence of subclinical facial eczema in 10 Waikato dairy herds was investigated using the serum enzyme γ-glutamyltransferase (GGT) as an indicator of liver disease. Although only 127 (9.4%) of the 1357 milking cows and 4 (2.6%) of the 155 calves and yearlings bled were recognised to have had clinical facial eczema, 39% of the cows and 48% of the young stock had abnormal serum GGT concentrations, indicating recent liver damage.

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34522

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

Clinical and cytogenetic observations were made on seven mares which had never bred when sent to stud. In six of these, the chromosome count was 63,XO with one X chromosome missing and, in one case, two cell lines were present with a 63,XO/64,XX chromosome constitution. All mares showed signs of the equine Turner's syndrome and it is suggested that sex chromosome abnormalities may be quite a common cause of sterility in the mare.

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34523

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

Excessive wear of the sole of the claws was a common cause of lameness in 2-year-old Friesian heifers. The lameness in older cattle frequently resulted from lesions sited in the interdigital space and in soft tissue structures elsewhere. Lameness was usually noted from 2–12 weeks after calving.

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34524

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

A 14-year-old male domestic short-haired cat was examined because of anorexia, depression and intermittent vomiting. Blood chemical analyses indicated the presence of liver disease and radio-opaque masses were seen in the region of the gall bladder on plain radiographs of the abdomen. Cholecystography was unsuccessful. Cholecystotomy was performed and choleliths removed from the gall bladder and the obstructed common bile duct.Escherichia coliwas cultured from the bile; thus ampicillin was administered post-operatively. The choleliths were composed mainly of bilirubin and calcium, and a bacterial cause for their formation is suggested. The cat recovered and was normal 9 months after surgery.

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34525

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

Oxfendazole (2.5 mg/kg) was tested against natural infections of nematodes in cattle in a dual experiment. The first part was designed to coincide with the late autumn-winter,Cooperia oncophora, larval-inhibition peak, whereas the second part was to coincide with the late winter-spring,Ostertagia ostertagi, larval-inhibition peak.

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34526

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34527

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34529

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

ISSN:0048-0169    

DOI:10.1080/00480169.1978.34530

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor