Fiber Types Distribution in the Digastric Muscle of Tufted Capuchin Monkey (Cebus apella)     

J. C. Andreo  V. D. Pai    J. A. C. Navarro  J. A. DE  Oliveira 《Anatomia, histologia, embryologia》1994,23(3):226-231

Fiber types distribution in the diagastric muscle of tufted capuchin monkey was studied by means of NADH-TR, myosin-ATPase, after alkaline and acid preincubations and SDH histochemical reactions. Three different types of fibers were found presenting an equal distribution. The percentage and types of fibers were as follow: 18.2 % SO (Slow Oxydative), 38.4 % FOG (Fast Oxydative Glycolytic) and 43.4 % FG (Fast Glycolytic). FG fibers revealed the largest area. The relatively high concentration of fast twitch (81.2 %) seems to indicate this muscle is involved with the acceleration and fast speed of jaw movements. Aerobic metabolism represented by SO + FOG fibers (56.6 %) suggestes that this muscle possesses an additional role than that related to the lowering of the jaw.  相似文献   

Influence of inflammation on serum concentration, molecular heterogeneity and drug binding properties of canine alpha–1–acid glycoprotein     

C. P. DELLO  F. M. BELPAIRE  A. DE RICK†  N. H. FRAEYMAN 《Journal of veterinary pharmacology and therapeutics》1988,11(1):71-76

The concentration and the heterogeneity of alpha-1-acid glycoprotein (alpha-1-AGP) and oxprenolol binding were determined in serum of healthy dogs and dogs with inflammatory disease. In inflammation, an increase in the mean alpha-1-AGP concentration from 0.47 to 2.85 g/l was accompanied by a reduction in the mean free oxprenolol fraction from 25% to 6%. alpha-1-AGP concentration and oxprenolol binding were inversely correlated. The heterogeneity of canine alpha-1-AGP remained essentially unchanged in dogs with inflammation and, in both these dogs and the controls, between five and seven forms with different isoelectric points and one single concanavalin A-reactive form were detected. It is concluded that in dogs, as in humans, oxprenolol binds to serum alpha-1-AGP. Changes in serum binding of oxprenolol during inflammation result from a change in the serum concentration of alpha-1-AGP rather than a change of molecular heterogeneity.  相似文献   

Behavioral, ovarian and endocrine relationships in the pubertal bitch     

D E Wildt  S W Seager  P K Chakraborty 《Journal of animal science》1981,53(1):182-191

Behavioral, ovarian and endocrine correlates were determined in seven bitches experiencing first estrus, and the results compared with previous data obtained on multiparous females. One or more atypical reproductive patterns were observed in certain bitches at the pubertal estrus. The ability of pubertal dogs to display normal reproductive relationships appeared to be related to age, because animals that exhibited normal sexual behavior and endocrine profiles tended to be older than females that produced aberrant patterns. For the latter group, atypical observations included lack of sexual receptivity and reduced or inconsistent patterns of circulating concentrations of estradiol-17 beta, luteinizing hormone (LH) or progesterone. Ovulation was confirmed in all four pubertal dogs subjected to laparoscopy, including two bitches that failed to demonstrate estrous behavior. In individual animals, it appeared that inadequate or sporadic elevations in titers of estradiol-17 beta during the preovulatory phase of the cycle were associated with reduced or abbreviated LH surge concentrations, and the latter were subsequently related to an absent or only minor preovulatory rise in serum progesterone. Reduced preovulatory estradiol-17 beta concentrations and a delayed increase in circulating progesterone were also associated with a lack of sexual receptivity. These results (1) suggest that hormonal insufficiencies or irregularities exist in certain bitches at the pubertal estrus and that such atypical activity appears more characteristic of the first than later adult estrous periods, and (2) are consistent with the theory that estrogen preconditioning and a decrease in the endogenous estrogen to progesterone ratio are important in the initiation of sexual receptivity in this species.  相似文献   

Einfluss von Pflanzenschutzmitteln einer Zuckerrüben-Spritzfolge auf biologische Aktivitäten und auf den Abbau von Chloridazon im Boden. II. Gefäss-und Laborversuche     

FAN DE  FANG  W. PESTEMER  H.-P. MALKOMES 《Weed Research》1983,23(5):293-304

Effect of carious pesticides of a sugar-fact spray programme on biological activities and chloridazon degradation in soil. II Pot trials and laboratory experiments In pot trials and laboratory experiments degradation and plant availability of Chloridazon (Pyramin) in soil, applied alone and in combination with other pesticides of a sugar-beet spray programme were investigated and also the influence of these treatments on soil dehydrogenusc activity and straw decomposition. After an initial lag-period chloridazon degradation was rapid, and obviously was unaffected by plant growth and other pesticides. The average lime for 50% decrease of the initial concentration was 10 days. The water-extractable portion of chloridazon in soil was not affected by the presence of other pesticides and was about 43% 1 week after application and decreased to 0% during the following week. Pyramin alone did not influence straw decomposition, and the spray programme was slightly stimulatory. In pot trials with and without plains, dehydrogenase activity was not significantly inhibited by Pyramin, whereas with the spray programme and bare soil, slightly reduced enzyme activities were observed. Under laboratory conditions the spray programme was more inhibitory than Pyramin alone. There was no correlation between biological soil activities and chloridazon degradation.  相似文献   

Comparison of the effects of etomidate and its fluoro analogue, R 8110, on plasma Cortisol, 11β-deoxycortisol, 17α-hydroxyprogesterone and testosterone concentrations in dogs     

R. DE COSTER  A.-D. A. Y. DEGRYSE  P. VAN DIJK  L. A. A. OOMS  E. LAGERWEIJ 《Journal of veterinary pharmacology and therapeutics》1987,10(3):227-232

R 8110, an imidazole derivative, was shown to be clinically superior to etomidate for induction and maintenance of anaesthesia in dogs. The present study compared the effects of intravenous (i.v.) R 8110, etomidate and Ringer solution on cortisol biosynthesis by the adrenal gland in seven male labradors. A tetracosactide challenge was carried out 30 min after the i.v. injection of 3 mg/kg of both drugs and after i.v. Ringer solution (1 ml/kg). Etomidate and R 8110 both suppressed the cortisol response to tetracosactide almost completely and increased the plasma 11 beta-deoxycortisol levels more than 20 fold. Maximal 11 beta-deoxycortisol values were reached 120 min after R 8110, and not less than 300 min after etomidate. Plasma 17 alpha-hydroxyprogesterone and testosterone concentrations did not differ between placebo and R 8110 treatment, but they decreased after etomidate. These results indicate that the effects of R 8110 on steroid biosynthesis in dogs are less pronounced than those of etomidate and are largely limited to a temporary inhibition of the 11 beta-hydroxylase in the adrenal gland.  相似文献   

Sterilization of the male dog and cat by laparoscopic occlusion of the ductus deferens     

D E Wildt  S W Seager  C H Bridges 《American journal of veterinary research》1981,42(11):1888-1897

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Bovine renal tumors,incidence and histopathology     

DE MENEZES Z 《Journal of the American Veterinary Medical Association》1948,112(855):466-470

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Assessment of tetracycline and Babesia culture supernatant as prophylactics for moderating reactions in cattle to live Babesia and Anaplasma vaccines     

WK JORGENSEN  RE BOCK  TG KINGSTON  AJ DE VOS  SJ WALDRON 《Australian veterinary journal》1993,70(1):35-36

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Lack of oxidative pathways in the metabolism of sulphisomidine by the turtle Pseudemys scripta elegans     

T. B. VREE †  J. B. VREE‡  P. A. M. DE JONGE  M.J. M. PLAUM  C. P. W. G. M. VERWEY  Y. A. HEKSTER  M. SHIMODA§  J. F. M. NOUWS¶ 《Journal of veterinary pharmacology and therapeutics》1989,12(4):459-462

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Dorsal Approach to the Caudal Pelvic Canal and Rectum Effect on Normal Dogs     

D. B. McKEOWN DVM    J. R. COCKSHUTT DVM    G. D. PARTLOW PhD  V. S. DE KLEER DVM 《Veterinary surgery : VS》1984,13(3):181-184

A dorsal surgical approach to the perineal area and rectum was made on 10 healthy, adult dogs. The rectococcygeal muscle was incised and the levator ani and external sphincter muscles were separated to the level of the caudal rectal nerve. All dogs were clinically normal throughout a 3 week postoperative observation period.  相似文献