ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693864

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693865

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Inspired by the desire to find an objective selection criterion which might be useful notably in borderline cases of hip dysplasia, 1265 sets of radiographs, taken on 1128 pedigree Rottweilers, have been assessed for 12 particulars of the joints; three subevaluations as well as a final score (FS) have been obtained for each individual involved.

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693866

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

N, the Norberg‐Olsson value, when regarded as the single predictor of FS in the total research subpopulation, leads to an unacceptably high proportion of misclassifications. These misclassifications are found to be much reduced in number on elimination of all animals suffering from bone deformities (BD) as perceivable on the radiographs.

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693867

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Following BCI4 (EDS'76) virus infection of brown layer hens at 33 weeks of age, production of normally shelled eggs dropped from 87 per cent to 49 per cent within 3 weeks. The production of soft shelled and shell‐less eggs attained a maximum of 33 per cent 3 weeks after infection (p.i.). Shell quality recovered completely within 5 weeks p.i.

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693868

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Male lambs of the pure breeds Texel, Flemish milk sheep, and Finnish landrace, and of the crossbrech Texel x Friesian milk sheep, Texel x Finnish landrace, Suffolk x Friesian milk sheep, and Finnish landrace x He de France were fed hay and concentrates, the latter differing only in the content of copper. At high (± 35 ppm) and at moderately low (± 10 ppm) copper levels in the concentrate, breed differences in the accumulation of copper in the liver were studied‐Hepatic Cu‐levels increased significantly in the case of the high Cu‐fed animals, but great differences in the metabolism of excessive amounts of dietary Cu exist between the particular breeds and crossbreds. The Texel breed was most susceptible to an excess of dietary Cu and the Finnish landrace was the least susceptible breed, while the Flemish milk sheep and the crossbreds were intermediate. In blood serum, the enzyme activities of sorbitol dehvdrogenase, lactate dehydroge‐nase, γ‐glutamyl transferase, and glutamic oxaloacetic transaminase were increased to a greater or less extent in the high Cu‐fed animals, but the correlation with hepatic Cu‐content was poor. For the most susceptible breeds, even a level of 10 ppm Cu in a ration with nearly equal amounts of hay and concentrate is insufficiently low for the prevention of Cu‐accumulation in the liver.

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693869

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Biochemical variants of constituents of the blood are considered to be valuable markers of genes in studies on population genetics. They are being used for that purpose for human populations and also for populations of laboratory and farm animals. The present report is concerned with biochemical variants in dogs.

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693870

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Plasma disappearance curves of sulfadimidine (SDM) in calves show at high doses a pattern resembling that of capacity‐limited elimination. The half‐life of the first part of the elimination phase of SDM when administered at high doses ranged between 6.4 and 11.5 h, while that of the terminal end of the plasma concentration‐time curves was similar to that obtained at a low level application, ranging between 2.5 and 6.0 h.

ISSN:0165-2176    

DOI:10.1080/01652176.1983.9693871

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor