Zentralblatt fur Veterinarmedizin. Reihe A最新文献_第10页

[The chambers of the bovine uterus during early pregnancy. A comparative morphologic, sonographic and nuclear spin tomographic findings]. [牛在怀孕早期的子宫腔]比较形态学、超声和核自旋层析成像结果]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-11-01

W Kähn, W Leidl, R Rienmüller

{"title":"[The chambers of the bovine uterus during early pregnancy. A comparative morphologic, sonographic and nuclear spin tomographic findings].","authors":"W Kähn, W Leidl, R Rienmüller","doi":"","DOIUrl":"","url":null,"abstract":"In the bovine, the uterus shows prominent circular folds during early pregnancy. These folds protrude into the lumen nearly at right angles to the uterine wall and, reaching a height of about 2-3 cm in some cases, often reach the center of the uterine lumen. Thus the uterus becomes apparently divided into a number of pocket-like chambers. Endometrial folds are usually found in the pregnant as well as the contralateral uterine horn. Intra-uterine features can be well demonstrated on exenterated bovine uteri without injuring the organ by means of nuclear magnetic resonance imaging with a high resolution performance. This technique was used to examine the uteri of 4 heifers on day 26, 28, 32 and 55 of pregnancy, respectively. The 3-dimensional imaging of these uteri demonstrated the presence of crescent-shaped folds usually at right angles to the long axis of the uterine horn. These endometrial folds explain why the allantochorionic vesicle cannot be demonstrated in toto by transrectal sonography during early pregnancy, apparently being subdivided by the protrusions from the uterine wall. It has been found that the uterus is characterized by 2-3 echo-weak compartments around day 25 of pregnancy and by about 4-6 by day 30. The number may yet increase with progressing pregnancy. Histological sections out of the wall of the pregnant and the contralateral uterine horn have revealed that the folds are composed mainly of the endometrium (Tunica mucosa) and the circular muscle (Stratum circulare).","PeriodicalId":23904,"journal":{"name":"Zentralblatt fur Veterinarmedizin. Reihe A","volume":"36 9","pages":"641-52"},"PeriodicalIF":0.0,"publicationDate":"1989-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13659259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Comparison of arterial and venous blood gas and acid-base values in prematurely born healthy calves or calves with a late asphyxia]. [早产儿健康犊牛与晚期窒息犊牛动脉、静脉血气及酸碱值的比较]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-11-01

M Pickel, W Zaremba, E Grunert

{"title":"[Comparison of arterial and venous blood gas and acid-base values in prematurely born healthy calves or calves with a late asphyxia].","authors":"M Pickel, W Zaremba, E Grunert","doi":"","DOIUrl":"","url":null,"abstract":"The arterial and venous blood gas and acid-base values of 44 calves delivered by caesarean section before term were examined during the first seven days of life. The newborns were divided into two groups based on clinical observations during the first hour of life, the blood pH and the base deficit: Group 1: 30 calves without respiratory distress syndrome (vital, non-asphyxial); they did not develop any diseases in the course of the experiment. Group 2: 14 calves with respiratory distress syndrome (asphyxial); 9 of these animals died in the course of the experiment. The blood gas and acid-base parameters (blood pH, base deficit, pCO2, pO2) measured in venous blood of the calves without respiratory distress syndrome (group 1) were similar to those cited in the literature for calves delivered at term. Among the calves that had survived respiratory distress syndrome, significantly decreased blood pH and increased base deficit values were found in both venous and arterial blood even on the third day after birth. Differences in pCO2 and pO2 were, however, no longer statistically significant between the two groups after 24 hours of life. For blood pH, base deficit, and pCO2 significant correlations were consistently found between the values in venous blood and the corresponding values in arterial blood in vital (non-asphyxial) calves. Due to the considerably smaller number of animals significant correlations between these parameters were less frequent in asphyxial calves, although some of the correlation coefficients were higher than in the vital calves. Experimentally induced influences and animal variation made the corresponding pO2-values of venous and arterial blood in both test groups less unequivocal. The analysis of arterial blood gas and acid-base parameters was not more conclusive than the analysis of venous blood regarding diagnosis and prognosis of respiratory distress syndrome. The blood pH and base deficit seemed to be the most suitable parameters to evaluate the severeness of the disease.","PeriodicalId":23904,"journal":{"name":"Zentralblatt fur Veterinarmedizin. Reihe A","volume":"36 9","pages":"653-63"},"PeriodicalIF":0.0,"publicationDate":"1989-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13659260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Cardiac and circulatory physiological studies in cattle with and without cardiomyopathy]. [有和没有心肌病的牛的心脏和循环生理研究]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-10-01

P Tschudi, J Martig

引用次数: 0

[Glucose metabolism in sheep in different reproductive stages and with ketosis using the intravenous glucose tolerance test (IVGTT)]. [利用静脉葡萄糖耐量试验(IVGTT)研究不同繁殖阶段和酮症绵羊的葡萄糖代谢]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-08-01

K Bickhardt, G Grocholl, G König

{"title":"[Glucose metabolism in sheep in different reproductive stages and with ketosis using the intravenous glucose tolerance test (IVGTT)].","authors":"K Bickhardt, G Grocholl, G König","doi":"","DOIUrl":"","url":null,"abstract":"Kinetic parameters of glucose metabolism were determined in 17 healthy ewes during different metabolic stages and in 8 spontaneously ketotic sheep by the IVGTT with low doses of glucose (0.8 mmol/kg) as well. The endogenous turnover rate (R) was calculated by using the total clearance (Cl), derived from the IVGTT. The values of R, determined in healthy ewes by this technique are in agreement with values presented in the literature, which were derived from kinetic studies with 3H- or 14C-labeled glucose. There were no differences in the mean values of R and Cl in non-pregnant, highly pregnant and ketotic ewes in our study. The plasma concentration of glucose (C) was significantly correlated with R in highly pregnant healthy and ketotic ewes; there was no such correlation in the group of non-pregnant and early pregnant sheep. In highly pregnant ketotic ewes the mean value of C was lower than in healthy ewes but there was no significant correlation between the plasma concentration of glucose and that of 3-hydroxybutyrate. It is concluded from the study, that the control of glucostasis fails frequently during late pregnancy in ewes and that ketosis of sheep is related closer to the excessive lipid mobilisation than to disturbance of glucostasis.","PeriodicalId":23904,"journal":{"name":"Zentralblatt fur Veterinarmedizin. Reihe A","volume":"36 7","pages":"514-29"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13654233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Microcomputer-assisted telemetry system for recording ultradian temperature rhythms in large animals]. [用于记录大型动物超昼夜温度节律的微电脑辅助遥测系统]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-05-01

E Mohr, T Leuschner

引用次数: 0

[Retrolental cloudiness of the vitreous humor in the rat eye]. [大鼠眼玻璃体后视混浊]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-05-01

G Rüttimann, B Daicker

引用次数: 0

[Histologic study of a bovine lymph node before and after antigenic stimulation. 1. Histology, cytology and histometry]. 抗原刺激前后牛淋巴结的组织学研究。1. 组织学，细胞学和组织计量学]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-04-01

F Femenia, T Alogninouwa, J J Fontaine, A L Parodi

引用次数: 0

[The optimal selenium supplementation in reproducing sows]. [繁殖母猪硒的最佳添加量]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-03-01

U F Neumann, K Bronsch, D Schneider

{"title":"[The optimal selenium supplementation in reproducing sows].","authors":"U F Neumann, K Bronsch, D Schneider","doi":"","DOIUrl":"","url":null,"abstract":"In two trials with sows of German Landrace at different dietary selenium levels glutathione peroxidase activity (GSH-Px activity) in plasma was determined at day 60, 90 and 110 of gestation, day 5, 15 and 25 of lactation and day 7 post weaning. In three groups of five first-litter gilts receiving 0.1, 0.3 and 0.5 mg selenium per kg diet, GSH-Px activities dropped within the treatments, independent of dietary selenium, from day 60 of gestation to a minimum at day 5 and 15, respectively, of lactation and increased again after weaning. Highest enzyme activities were observed at the 0.5 level. In another trial, 127 reproductive cycles of sows in first, second and third parity, respectively, with 0.1, 0.5 and 0.9 mg dietary selenium were investigated. GSH-Px activity showed results comparable to those of the former trial. Selenium content of plasma increased linearly as dietary selenium increased. In all cases, results of GSH-Px activity and of plasma selenium were confirmed by regression analysis. Reproductive performance ameliorated with increasing dietary selenium. Especially piglet's gain from birth to weaning and litter weight at weaning increased significantly. Furthermore, percentage of still born piglets showed a minimum at the selenium supplementation of 0.5 mg/kg diet. The pattern of GSH-Px activity in plasma and the improved reproductive performance of animals imply that the requirement of the sow during the reproductive cycle is met a level of 0.5 mg selenium per kilogram diet.","PeriodicalId":23904,"journal":{"name":"Zentralblatt fur Veterinarmedizin. Reihe A","volume":"36 3","pages":"175-87"},"PeriodicalIF":0.0,"publicationDate":"1989-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13646423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Catecholamine and cortisol concentrations in plasma from cattle at parturition]. [牛分娩时血浆中儿茶酚胺和皮质醇的浓度]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-03-01

W D Rausch, A Hofer, M Gemeiner, E Möstl

{"title":"[Catecholamine and cortisol concentrations in plasma from cattle at parturition].","authors":"W D Rausch, A Hofer, M Gemeiner, E Möstl","doi":"","DOIUrl":"","url":null,"abstract":"Cows with spontaneous parturition (n = 8) and cows with flumethasone (n = 3) or prostaglandin (n = 3) induced parturition were used in this study. Catecholamine concentrations from cows in the periparturient period were measured in order to evaluate the stress of birth on the dam and the calf. The plasma content of both norepinephrine and epinephrine in late pregnancy was not different from control values in the 3rd to 6th month of pregnancy (norepinephrine 3.27 +/- 0.99 nmol/l plasma and epinephrine 0.98 +/- 0.45 nmol/l plasma), though both parameters appear elevated in the pregnant group. Norepinephrine concentrations rose to a value of 4.50 nmol/l immediately after birth, whereas epinephrine levels did not show an increase post partum. In two neonates norepinephrine and epinephrine values were 2-3 times higher than in the dams and decreased to the values of the dams within 48 hours. Synthetic glucocorticoids can mimic the increase of cortisol, which leads to birth. Cortisol concentrations in the cows remained unaffected by induction of parturition by prostaglandins. Newborn calves showed values of about 330 nmol/l, which also declined within 48 hours to values similar to those measured in the dam (9-28 nmol/l). As stress and exogenous glucocorticoids may affect antibody production, the IgG-content of the colostrum was examined. Prostaglandin induction of birth did not alter the IgG-content of colostrum, but flumethasone produced a decrease of about 14.5%. It is therefore concluded that pre-term birth induction does not produce negative effects on the supply of IgG.","PeriodicalId":23904,"journal":{"name":"Zentralblatt fur Veterinarmedizin. Reihe A","volume":"36 3","pages":"218-24"},"PeriodicalIF":0.0,"publicationDate":"1989-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13646425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[AST, GLDH, gamma-GT, total bilirubin and CK values during the first week of life in healthy premature calves or calves with a late asphyxia syndrome]. [健康早产犊牛或晚期窒息综合征犊牛出生第一周AST、GLDH、γ - gt、总胆红素和CK值]。

Zentralblatt fur Veterinarmedizin. Reihe A Pub Date : 1989-02-01

M Pickel, W Zaremba, E Grunert

引用次数: 0