Annales De Biologie Animale Biochimie Biophysique最新文献_第3页

New attempts to decrease the variability of ovarian response to PMSG in cattle 减少牛卵巢对PMSG反应变异性的新尝试

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790911

D. Chupin, J. Saumande

{"title":"New attempts to decrease the variability of ovarian response to PMSG in cattle","authors":"D. Chupin, J. Saumande","doi":"10.1051/RND:19790911","DOIUrl":"https://doi.org/10.1051/RND:19790911","url":null,"abstract":"The variability of ovarian response in cattle after superovulatory treatment with PMSG is mainly due to differences in the follicular population on the day of PMSG injection. We have tried to modify this follicular population either by destroying some of the follicles at the time of PMSG injection or by pretreatment at the beginning of the cycle. The electrocauterization of follicles on day 16 delayed luteolysis and did not reduce variability. The injection of 1 000 i.u. of PMSG on day 3 post-cestrus produced 35.7 p. 100 of twin ovulations when 600 i.u. were injected on day 16. Another explanation of response variability is the duration of PMSG action which can be modified by controlling the PMSG-oestrus interval with prostaglandin analogs; lenghtening that interval increased the ovulation rates from 1.75 to 4.60 and decreased the number of large follicles growing after ovulation from 5.13 to 0.60. Moreover, when PMSG prostaglandin treatment was associated with progestagen, PMSG efficiency increased. So after 500 i.u. of PMSG at the end of a progestagenprostaglandin treatment we obtained à 34.1 p. 100 twinning rate. Finally, repeated treatments (2 000 i.u. PMSG-0.5 mg PGF 2a analog) every 6 weeks during one year produced the same variability in the response pattern : response was constant in 29.8 p. 100 of the heifers, 27.7 p. 100 showed a definite decrease after 3 to 5 treatments, and 36.2 p. 100 a decrease followed by an increase.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"40 1","pages":"1489-1498"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90943590","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: 19

Measurement of the rate of cholesterol synthesis in various organs of the rat in vivo 测定大鼠体内各器官的胆固醇合成速率

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19791012

T. Magot, F. Chevallier

引用次数: 11

Some relationships among germ, satellite and interstitial cells during chick gonad differentiation : A tissue culture study 鸡性腺分化过程中胚细胞、卫星细胞和间质细胞关系的组织培养研究

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790812

J. Jordanov, P. Angelova

引用次数: 1

Passage d'éléments d'origine microbienne à travers la muqueuse intestinale du lapin. Étude autoradiographique après marquage des microorganismes par la glycine tritiée 微生物来源的元素通过兔子肠道粘膜的通道。氚化甘氨酸标记微生物后的自射线照相研究

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790506

M. Petitprez, R. Moncoulon, L. Albertini, P. Raynaud

引用次数: 0

The effects of Isopropyl-N-Phenylcarbomate on meiotic maturation of mammalian oocytes 异丙基苯碳酸酯对哺乳动物卵母细胞减数分裂成熟的影响

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790713

N. Crozet, D. Szöllösi

引用次数: 7

Absorption kinetics of amino acids and reducing sugars during digestion of barley or wheat meals in the pig : Preliminary data 猪在消化大麦或小麦时氨基酸和还原糖的吸收动力学:初步数据

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790607

A. Rérat, P. Vaissade, P. Vaugelade

{"title":"Absorption kinetics of amino acids and reducing sugars during digestion of barley or wheat meals in the pig : Preliminary data","authors":"A. Rérat, P. Vaissade, P. Vaugelade","doi":"10.1051/RND:19790607","DOIUrl":"https://doi.org/10.1051/RND:19790607","url":null,"abstract":"Summary. The digestion of barley and wheat was studied in the pig using a metho- dology quantitatively describing the apparent absorption kinetics of amino acids and reducing sugars. This methodology is based on the simultaneous and continuous measure- ment of the postprandial increase of the level of these nutrients in the efferent blood of the digestive tract (porto-arterial differences) and the measurement of the portal vein blood flow. After an 18-hr fast, the experimental meals (18 for barley, 22 for wheat) were given to animals weighing 40 to 50 kg in amounts varying from 200 to 1 600 g ; recordings were taken over a periprandial period of 10 to 12 hrs. The following main results were obtained : essential amino acids, aromatic amino acids and methionine appeared more rapidly. On the other hand, arginine and cystine appeared more they were metabolized in the digestive wall. Among the non-essential amino acids, glutamine and glutamic acid appeared very slowly and alanine and glycocolle very quickly and intensely ; non-alimentary products such as citrulline and ornithine were synthesized. Absorption balance after 8 hrs of digestion, as shown by absorption percentages, ranged from 71 p.100 (histidine) to 20 p. 100 (cystine) for barley and between 90 and 29 p. (same amino acids) case of both and glycine in the case of were synthe- sized. The absorption coefficient of glutamic and glutamine very cases.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"13 1","pages":"739-747"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85382382","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: 24

Mesure du débit du sang de la veine porte au moyen d'un débitmètre électromagnétique chez la chèvre 用电磁流量计测量山羊门静脉的血流量

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790606

J. Barry, Elisabeth Debras, J. Lefaivre, C. Champredon

{"title":"Mesure du débit du sang de la veine porte au moyen d'un débitmètre électromagnétique chez la chèvre","authors":"J. Barry, Elisabeth Debras, J. Lefaivre, C. Champredon","doi":"10.1051/RND:19790606","DOIUrl":"https://doi.org/10.1051/RND:19790606","url":null,"abstract":"Summary. Measurement of portal vein blood flow in goats using an electromagnetic flow- meter. When quantitatively measuring the products of digestion in the portal blood, the following factors are to be studied : - the difference between the concentrations of those products in the arterial blood affe- rent to the alimentary canal and of those in the venous portal blood, - blood flow in the portal vein. As a preliminary step, we have undertaken the study of the continuous measurement of the portal blood flow in ruminants (goats), using a method analogous to that employed by Rérat in pigs. Nine goats were fitted with a ring-probe around the portal vein ; during reading, the probe was attached to an electromagnetic flow-meter connected to a recor-der. Fifteen readings were taken on 4 of the animals (mean live weight : 47 kg) for about 7 hours after the morning feeding. After installation, each gauge allowed readings for 4 to 5 consecutive weeks. The signal then faded, and the animals were slaughtered and exami- ned. As the wall of the portal vein had slightly thickened and therefore its lumen was only slightly reduced, signal damping could be attributed to a change in probe functio- ning. The mean flow, measured at the time of reading, was 1 830 ml/min or 39 ml/min/kg of live weight. This study showed a large variability in the flow and distinguished 3 variations throughout the day :","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"142 1","pages":"733-738"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77783998","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: 3

Follicular populations in the ewe under different gonadotrophin levels 不同促性腺激素水平下母羊卵泡群的变化

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790909

L. Cahill, J. Dufour

引用次数: 6

Plasma steroids, prolactin and placental lactogen in intact or hypophysectomized pregnant ewes with an hypophysectomized foetus. Effect of foetal perfusion of dexamethasone 完整或去垂体妊娠母羊与去垂体胎儿的血浆类固醇、催乳素和胎盘乳素。地塞米松对胎儿灌注的影响

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790710

M. Bosc, P. Durand, A. Locatelli, A. Nicolle, J. Ravault, M. Terqui

引用次数: 4

Selective protein incorporation by vitellogenic Salmo gairdneri oocytes in vitro 体外产卵黄小龙虾卵母细胞选择性蛋白掺入研究

Annales De Biologie Animale Biochimie Biophysique Pub Date : 1979-01-01 DOI: 10.1051/RND:19790311

C. M. Campbell, B. Jalabert, G. Campbell, M. Heydorff

引用次数: 38