Effect of swine weaning age on body fat and lipogenic activity in liver and adipose tissue     

J P Fenton  K L Roehrig  D C Mahan  J R Corley 《Journal of animal science》1985,60(1):190-199

Two experiments were conducted to evaluate the effects of weaning swine at 2 or 5 wk of age on postweaning performance and fat metabolism. In the first experiment, 52 pigs were weaned at 2 or 5 wk of age with body weights determined from birth to 8 wk. The early weaned group was fed a 20% protein corn-soybean meal-oat diet containing 25% dried whey from 2 to 5 wk while both groups were fed a 20% protein cereal grain-based diet from 5 to 8 wk of age. In a second experiment, a total of 90 pigs weaned at similar ages and fed the same diet sequences were killed at weekly intervals from 2 to 8 wk of age to evaluate body fat content and lipogenesis in liver and adipose tissue. Lipogenic capacity was measured by incorporation of acetate-1 14C into the total lipid fraction in liver slices and adipose tissue minces or by monitoring liver ATP citrate lyase activity. The results demonstrate that pigs weaned at 2 wk experience a slower postweaning growth rate with lower empty body weights than those either concurrently nursing the dam or weaned at 5 wk of age. Both groups had similar body weights from 6 to 8 wk of age. The body fat content of nursing pigs increased from 2 to 5 wk of age. Pigs weaned at 2 wk lost approximately 25% of their body fat the first week postweaning while later-weaned pigs did not lose body fat postweaning. Body fat composition of both groups was similar by 8 wk of age. Lipogenic activity was higher in liver than in adipose tissue from 2 to 5 wk of age and remained relatively constant throughout the trial. Adipose tissue lipogenic activity was lower in the nursing pig but increased dramatically at 5 wk in the early-weaned group and 7 wk of age in the late weaned group. These results suggest that weaning age can affect postweaning body fat composition and that adipose contributes a greater lipogenic capacity than liver tissue as the pig matures.  相似文献   

Retrospective study of 60 cases of feline lymphosarcoma     

EA COURT  ADJ WATSON  AE PEASTON 《Australian veterinary journal》1997,75(6):424-427

Objective To characterise epidemiological and clinical findings, and diagnostic procedures undertaken, in cats with lymphosarcoma at a veterinary teaching hospital.
Design Retrospective case study.
Procedure Hospital records were reviewed for 7159 cats, sick or healthy, examined during a 10-year period (1984 to 1994). Sixty cats with lymphosarcoma were identified and classified by anatomical location of the tumour. Data on breed, age, sex, clinical signs and diagnostic procedures were collated.
Results The prevalence of feline lymphosarcoma in the hospital population was 0.84%. Siamese cats appeared predisposed to lymphosarcoma but other purebreds were not. Males were somewhat overrepresented amongst affected cats. Similar numbers of cases (12 to 18) were seen in each of the four anatomic categories (multicentric, mediastinal, alimentary and extranodal). Cats with mediastinal lymphosarcoma were mostly young and Siamese. Clinical signs in affected cats were varied, usually multiple and often nonspecific. Two of 22 cases tested positive for feline leukaemia virus antigen in blood and 6 of 13 were positive for feline immunodeficiency virus antibody.
Conclusions Extranodal lymphosarcoma seemed more prevalent in this study than reported elsewhere. Siamese cats in the study population may have had a genetic predisposition to lymphosarcoma. Limited evidence suggested feline leukaemia virus may be less important, and feline immunodeficiency virus more important, in the local population than indicated in overseas reports. Additional studies are needed to investigate breed predisposition and feline leukaemia virus and feline immunodeficiency virus status in Australian cats with lymphosarcoma.  相似文献   

Some evidence for genetically controlled variation in photosynthetic rate of oil palm seedlings     

R. H. V. Corley  J. J. Hardon  S. C. Ooi 《Euphytica》1973,22(1):48-55

Summary The rate of uptake of ¹⁴CO₂ by oil palm seedlings in relation to light intensity was studied in a complete diallel cross. Analysis showed heritable differences in both light saturated and light limited photosynthesis, and in leaf chlorophyll content. The potential importance of this in a breeding programme is discussed.  相似文献   

Selection of oil palms for high density planting     

C. J. Breure  R. H. V. Corley 《Euphytica》1983,32(1):177-186

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DNA Replication and Recombination     

EA Adelberg 《Science (New York, N.Y.)》1964,146(3648):1193-1195

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Pseudomonas aeruginosa bacteraemia in a dog     

EA COURT  ADJ WATSON  P MARTIN 《Australian veterinary journal》1994,71(1):25-27

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The Right Cranial Lung Lobe Bronchus of the Dog: Its Identification in a Lateral Chest Radiograph     

Ronald L.  Burk  Louis A.  Corwin  Jr.  Robert J.  Bahr  E. A. Corley  Brent D.  Jones 《Veterinary radiology & ultrasound》1978,19(6):210-212

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Bone Infarction and Sequestrum Formation in a Canine Osteosarcoma     

N. Ackerman    W. H. Halliwell    W. E. Wingfield  E. A. Corley 《Veterinary radiology & ultrasound》1975,16(1):3-5

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Radiographic evaluations in a canine hip dysplasia control program     

J S Larsen  E A Corley 《Journal of the American Veterinary Medical Association》1971,159(8):989-992

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Factors associated with mortality and morbidity in small intestinal volvulus in horses     

Stephen JO  Corley KT  Johnston JK  Pfeiffer D 《Veterinary surgery : VS》2004,33(4):340-348

OBJECTIVE: To determine historical, physical, and clinical factors that may affect morbidity and mortality in horses with small intestinal volvulus unrelated to other causes (e.g., incarceration, lipoma, etc.). STUDY DESIGN: Retrospective study. ANIMALS: Client-owned horses (115), aged 1 month to 21 years. Methods: Data were obtained from medical records, identified by computer search and manual review. Continuous variables were compared between affected and non-affected horses with Mann-Whitney U-tests and non-continuous variables with Fisher's exact test (2 x 2 tables) or chi(2)-tests (larger tables). Stepwise logistic regression analysis was used to develop a multivariable model of the risk factors, taking account of confounding and interaction. RESULTS: Eighty percent of horses recovered from surgery survived to hospital discharge. Neither age, breed, nor sex was related to mortality. Survivors had a significantly lower heart rate, shorter capillary refill time, and better mucous membrane color. Variables associated with worsening cardiovascular status, increased hemoconcentration, and exudation of cells and protein into peritoneal fluid were significantly associated with non-survival. After recovery from surgery, the most serious complication was colic, which was significantly associated with non-survival (P=.028) as was a second celiotomy (P<.01). Both of these complications were associated with a jejunocecostomy during the first surgery. CONCLUSIONS: Significant differences in the clinical and clinicopathologic signs were identified between survivors and non-survivors. CLINICAL RELEVANCE: These findings can be used to make a scientific assessment of prognosis in the pre-operative, operative, and post-operative management of horses with small intestinal volvulus.  相似文献