Ultrastructural features of skeletal muscle differentiation and development   总被引：1，自引：0，他引：1  

M H Stromer  D E Goll  R B Young  R M Robson  F C Parrish 《Journal of animal science》1974,38(5):1111-1141

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THE DIAGNOSIS OF TUBERCULOSIS IN CATTLE WITH SPECIAL REFERENCE TO BOVINE PPD TUBERCULIN   总被引：1，自引：0，他引：1  

J. Francis  D.Sc.  M.Sc.  F.R.C.V.S.  F.A.C.V.Sc.  C.L. Choi  D.V.M.  Dip. Diag. Path.  M.V.Sc. A. J. Frost  B.V.Sc.  Ph.D.  M.A.C.V.Sc. 《Australian veterinary journal》1973,49(5):246-251

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Effect of Supplemental Vitamin E and Selenium in High Moisture Corn Diets on the Incidence of Mulberry Heart Disease and Hepatosis Dietetica in Pigs   总被引：2，自引：2，他引：0       下载免费PDF全文

B. A. Sharp  L. G. Young    A. A. van Dreumel 《Canadian journal of veterinary research》1972,36(4):393-397

Forty-eight intact male pigs were used to investigate the influence of source of protein supplement, corn moisture content, and supplemental vitamin E-selenium survived the cidence of mulberry heart disease, hepatosis dietetica and associated lesions. Pigs fed soybean meal-high moisture corn diets survived fewer days than pigs fed the other diets. None of the pigs fed torula yeast-dry corn or soybean meal-high moisture corn without supplemental vitamin E-selenium survived the 13 week trial. Supplemental vitamin E-selenium increased survival of pigs. A higher incidence of hepatosis dietetica, myocardial degeneration, skeletal muscle degeneration, and exudative diathesis was observed in pigs fed torula yeast-dry corn or soybean meal-high moisture corn than pigs fed soybean meal-dry corn. Supplemental vitamin E-selenium resulted in a reduction in the incidence of the above lesions by approximately 50% with the exception of hepatosis dietetica. Tissue selenium concentration did not appear to be related to the incidence of the various lesions.  相似文献   

Site of protein digestion in steers fed sorghum grain diets. II. Effect of grain processing methods     

S H Rahnema  B Theurer  J A Garcia  W H Hale  M C Young 《Journal of animal science》1987,64(5):1541-1547

Seven crossbred, abomasally fistulated yearling steers (400 kg) were used in two digestion trials (crossover design) to study the effect of processing sorghum grain on the site and extent of feed and microbial protein digestion. Steers were fed an 81.5% sorghum grain diet in which the grain was either dry-rolled (DR; four steers) or steam-processed, flaked (SPF; three steers). At the end of the first trial steers were switched to the opposite treatment. Dysprosium (21 to 23 micrograms/g of feed) was used as a digesta marker. Feed, abomasal contents and fecal grab samples were collected at 12-h intervals during a 6-d total fecal collection period. Organic matter (OM) intake for SPF and DR grain diets averaged 6,426 and 6,787 g/d, respectively. Compared with DR, SPF increased (P less than .05) the apparent total digestibility and ruminal digestibility of OM. Trichloroacetic acid precipitable protein consumed by the steers was lower (P less than .05) for SPF than the DR treatment. Processing method had no effect on ruminal digestion of crude protein (CP), bacterial protein (BP) synthesis, quantity of CP entering the small intestine or on total digestion of feed protein. There was a trend for increased total and post-ruminal digestion of CP with the SPF diet. Post-ruminal digestion of BP was increased (P less than .05) by SPF grain as compared with DR. Percentage of non-BP digested ruminally, post-ruminally or in the total tract was not significantly affected by processing method.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

Technique for continuous stride analysis of horses exercising on a treadmill     

R.B. Williams  C.G. Clark  S.S. Young 《Research in veterinary science》1991,50(3):360-361

A technique for continuous computerised recording and analysis of the stride of horses on a treadmill is described. Advantages of the system are low cost, the use of normal shoes and the calculation of stride parameters in real time.  相似文献   

Feline onychectomy and elective procedures.     

William Phillip Young 《Veterinary Clinics of North America: Small Animal Practice》2002,32(3):601-19, vi-vii

The development of the carbon dioxide (CO2) surgical laser has given veterinarians a new perspective in the field of surgery. Recently developed techniques and improvisations of established procedures have opened the field of surgery to infinite applications never before dreamed of as little as 10 years ago. Today's CO2 surgical laser is an adaptable, indispensable tool for the everyday veterinary practitioner. Its use is becoming a common occurrence in offices of veterinarians around the world.  相似文献   

East coast fever: 2. Cross-immunity trials with a Kenya strain of Theileria lawrencei     

D.E. Radley  A.S. Young  C.G.D. Brown  M.J. Burridge  M.P. Cunningham  F.L. Musisi  R.E. Purnell 《Veterinary parasitology》1975,1(1):43-50

Cross-immunity trials were carried out on cattle which were immunized against theileriosis either by chemoprophylaxis or by sub-lethal challenge. In the first of two experiments, animals were immunized against either one of two strains of Theileria parva or one of two strains of Theileria lawrencei. They were then challenged with a Kenya strain of T. lawrencei (T. lawrencei KB 5). The former animals were not protected against the challenge, whereas the latter were either partially protected, when a Tanzanian strain of T. lawrencei had been used for immunization, or completely protected when another Kenyan strain of T. lawrencei had been used.In the second experiment, animals were immunized by chemoprophylaxis against T. lawrencei (KB5) and challenged with T. parva (one strain) or T. lawrencei (five strains). The cattle were protected against challenge with the identical or related T. lawrencei strains, but only partially protected against the T. parva strain and a Tanzanian strain of T. lawrencei.It appears that cattle cannot be immunized for field exposure to theileriosis throughout East Africa by chemoprophylaxis using T. lawrencei (KB5) alone, but may be able to withstand field exposure in a variety of situations if a combination of different theilerial strains is used in the vaccination procedure.  相似文献   

The relationship between Theileria taurotragi from eland and Theileria sp. (Idobogo) from cattle     

J.G. Grootenhuis  A.S. Young  G. Uilenberg 《Veterinary parasitology》1981,8(1):39-47

Theileria taurotragi and Theileria sp. (Idobogo) isolated from Kenyan eland and Tanzanian cattle, respectively, have many characteristics in common. It was found that tick-derived stabilites of Theileria sp. (Idobogo) were infective to eland, although only very mild infections developed. Eland that had recovered from Theileria sp. (Idobogo) infections were susceptible to challenge with T. taurotragi stabilate, and similar infections developed in control eland. Cattle that had recovered from Theileria sp. (Idobogo) infection were immune to challenge with T. taurotragi, in contrast to cattle that had recovered from T. taurotragi, which were susceptible to Theileria sp. (Idobogo) challenge. Using T. taurotragi piroplasm antigen in the indirect fluorescent antibody test, a high degree of cross-reaction was observed between T. taurotragi and Theileria sp. (Idobogo) antisera. It would appear that T. taurotragi and Theileria sp. (Idobogo) represent strains of the same species which are adapted to different hosts.  相似文献   

Character and origin of deep arenaceous weathering mantles on the bega batholith,southeastern Australia     

J.C. Dixon  R.W. Young 《CATENA》1981,8(1):97-109

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Effect of skin testing and segregation on the prevalence of bovine tuberculosis, and molecular typing of Mycobacterium bovis, in Ethiopia     

Ameni G  Aseffa A  Sirak A  Engers H  Young DB  Hewinson RG  Vordermeier MH  Gordon SV 《The Veterinary record》2007,161(23):782-786

In 2002, the prevalence of bovine tuberculosis (tb) among 500 cattle on Holeta Farm, near Addis Ababa, Ethiopia, was 48 per cent, and the farm was divided into positive and negative herds. After three consecutive rounds of skin testing and segregation of skin test-positive and -negative animals, the prevalence of bovine tb was reduced from 14 per cent to 1 per cent in the negative herd in a year. Spoligotyping of 41 isolates from 17 cows gave an identical and unique spoligotype pattern, which can be represented as the binary number 1100000101111110111111100010000000000100000, where 1 indicates the presence of a spacer and 0 represents a loss. This spoligotype pattern had not previously been reported on the Mycobacterium bovis spoligotype database, and it was therefore designated SB1176, Ethiopian M bovis strain 1 (EMbs1). The variable number tandem repeat (VNTR) profile of the strain was 5254(*)33.1, which differed from the VNTR profile of strains reported in Great Britain.  相似文献