the pituitaries dissected. Using a thorough fractionation procedure, the other pituitary hormones were eliminated. To obtain a PRL preparation with high biological activity, gel filtration on Sephadex G 100 was used. The prepared PRL was studied using physicochemical, biological and immunological methods. From gel filtration data the molecular weight of the PRL thus prepared was approximately 26 000. Using a radioreceptor assay the activity of the preparation was two times higher than the NIAMDD preparation of PRL (NIAMDD-RP,). Immunofluorescence studies revealed that rabbit antiserum raised against this PRL had affinity for the PRL cells in ovine, bovine and rat pituitaries but none for the other types of pituitary cells. A double antibody radioimmunoassay was developed using the above hormone and its antiserum. Standard curves were plotted over the range of 16 to 400 pg. Rat FSH, LH, TSH and GH did not react in this assay nor did plasma proteins. The intra-assay coefficient of variation was 10 p. 100 and the between assay 16 p. 100. The rat prolactin radioimmunoassay kit distributed by the National Institute of Arthritis and Metabolic Diseases (NIAMD) was also examined. Prolactin levels in rat serum measured by the NIAMD-radioimmunoassay were twice those measured by our system. The apparent differences in serum levels of PRL simply reflected the lower immunologic activity of the NIAMD prolactin.
垂体被解剖。使用彻底的分离程序，其他垂体激素被消除。为了获得具有高生物活性的PRL制剂，采用Sephadex g100凝胶过滤。采用理化、生物学和免疫学等方法对制备的PRL进行了研究。从凝胶过滤数据来看，制备的PRL分子量约为26000。通过放射性受体测定，该制剂的活性比NIAMDD制剂的PRL (NIAMDD- rp，)高两倍。免疫荧光研究表明，兔抗血清对羊、牛和大鼠垂体PRL细胞有亲和力，对其他类型垂体细胞无亲和力。利用上述激素及其抗血清，建立了双抗体放射免疫测定法。在16至400 pg范围内绘制标准曲线。大鼠FSH、LH、TSH和GH在本实验中没有反应，血浆蛋白也没有反应。组内变异系数为10 p. 100，组间变异系数为16 p. 100。还检测了由美国国家关节炎和代谢疾病研究所(NIAMD)分发的大鼠催乳素放射免疫测定试剂盒。niamd放射免疫法测定的大鼠血清催乳素水平是本系统测定的两倍。血清PRL水平的明显差异仅仅反映了NIAMD催乳素免疫活性较低。
{"title":"Purification of rat prolactin : Development of an homologous radioimmunological assay and comparison with the NIAMDD system","authors":"N. Martinat, E. Hall, J. Ravault, M. Dubois","doi":"10.1051/RND:19791013","DOIUrl":"https://doi.org/10.1051/RND:19791013","url":null,"abstract":"the pituitaries dissected. Using a thorough fractionation procedure, the other pituitary hormones were eliminated. To obtain a PRL preparation with high biological activity, gel filtration on Sephadex G 100 was used. The prepared PRL was studied using physicochemical, biological and immunological methods. From gel filtration data the molecular weight of the PRL thus prepared was approximately 26 000. Using a radioreceptor assay the activity of the preparation was two times higher than the NIAMDD preparation of PRL (NIAMDD-RP,). Immunofluorescence studies revealed that rabbit antiserum raised against this PRL had affinity for the PRL cells in ovine, bovine and rat pituitaries but none for the other types of pituitary cells. A double antibody radioimmunoassay was developed using the above hormone and its antiserum. Standard curves were plotted over the range of 16 to 400 pg. Rat FSH, LH, TSH and GH did not react in this assay nor did plasma proteins. The intra-assay coefficient of variation was 10 p. 100 and the between assay 16 p. 100. The rat prolactin radioimmunoassay kit distributed by the National Institute of Arthritis and Metabolic Diseases (NIAMD) was also examined. Prolactin levels in rat serum measured by the NIAMD-radioimmunoassay were twice those measured by our system. The apparent differences in serum levels of PRL simply reflected the lower immunologic activity of the NIAMD prolactin.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"66 1","pages":"1771-1788"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85248697","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}
{"title":"Transit digestif chez le rat recevant de la caséine traitée en milieu alcalin","authors":"B. Possompès, Im Soon Choi Schin, P. Besançon","doi":"10.1051/RND:19790630","DOIUrl":"https://doi.org/10.1051/RND:19790630","url":null,"abstract":"","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"8 16","pages":"907-910"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91418016","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}
A. Puigserver, L. C. Sen, R. E. Feeney, John R. Whitaker
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Hydrolyse enzymatique et stabilité en milieu acide des liaisons isopeptidiques de la L-méthionyl-caséine A. J. Puigserver, L. C. Sen, R. E. Feeney, J. R. Whitaker
它是一个多学科的开放获取档案，用于科学研究文件的存储和传播，无论它们是否出版。这些文件可能来自法国或国外的教学和研究机构，也可能来自公共或私人研究中心。HAL开放多学科档案旨在存放和传播来自法国或外国教育和研究机构、公共或私人实验室的已发表或未发表的研究级科学文件。l-甲酰基酪蛋白同肽键的酶水解和酸稳定性A. J. Puigserver, L. C. Sen, R. E. Feeney, J. R. Whitaker
{"title":"Hydrolyse enzymatique et stabilité en milieu acide des liaisons isopeptidiques de la L-méthionyl-caséine","authors":"A. Puigserver, L. C. Sen, R. E. Feeney, John R. Whitaker","doi":"10.1051/RND:19790608","DOIUrl":"https://doi.org/10.1051/RND:19790608","url":null,"abstract":"HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Hydrolyse enzymatique et stabilité en milieu acide des liaisons isopeptidiques de la L-méthionyl-caséine A. J. Puigserver, L. C. Sen, R. E. Feeney, J. R. Whitaker","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"52 1","pages":"749-755"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91326298","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}
In the gonads of male or female calf fetuses and of fetal freemartins, the germ cells may present nuclear aspects resembling those described in other species as the « preleptotene chromosome condensation stage ». The maximum of these aspects occurred between 60 and 80 days post-insemination. The fate of the cells presenting these aspects is not know, and it is not certain that this nuclear stage really is part of meiosis. If one takes as a criterion the more conventionally recognized figures (leptotene, zygotene), meiosis was seen in the three freemartin fetuses aged 77 to 88 days, but the percentage of meiotic cells was low. In fetuses older than 90 days no meiotic cells were present in those gonads in which seminiferous cords developed. In gonads which contained no seminiferous cords, meiotic figures were seen only in three animals under 133 days of age ; in older animals meiosis was not present. The presence of seminiferous cords in the gonad is incompatible with the presence of meiotic germ cells. In every case, the germ cells disappeared from the freemartin gonad after day 186, except for a few which persisted until day 222 because they were located in seminiferous cords. In an attempt to determine whether meiosis could be influenced by various agents, rat fetal ovaries were cultivated in vitro with or without estradiol, an anti-estrogen, progesterone, methyladenine, ram rete fluid or « inhibine » extracted from ram rete fluid. In these preliminary non-quantitative experiments, no definite alterations of meiosis were noted.
{"title":"Meiosis in fetal freemartin gonads and in rat fetal ovaries in vitro","authors":"J. Prepin, B. Vigier, A. Jost","doi":"10.1051/RND:19790810","DOIUrl":"https://doi.org/10.1051/RND:19790810","url":null,"abstract":"In the gonads of male or female calf fetuses and of fetal freemartins, the germ cells may present nuclear aspects resembling those described in other species as the « preleptotene chromosome condensation stage ». The maximum of these aspects occurred between 60 and 80 days post-insemination. The fate of the cells presenting these aspects is not know, and it is not certain that this nuclear stage really is part of meiosis. If one takes as a criterion the more conventionally recognized figures (leptotene, zygotene), meiosis was seen in the three freemartin fetuses aged 77 to 88 days, but the percentage of meiotic cells was low. In fetuses older than 90 days no meiotic cells were present in those gonads in which seminiferous cords developed. In gonads which contained no seminiferous cords, meiotic figures were seen only in three animals under 133 days of age ; in older animals meiosis was not present. The presence of seminiferous cords in the gonad is incompatible with the presence of meiotic germ cells. In every case, the germ cells disappeared from the freemartin gonad after day 186, except for a few which persisted until day 222 because they were located in seminiferous cords. In an attempt to determine whether meiosis could be influenced by various agents, rat fetal ovaries were cultivated in vitro with or without estradiol, an anti-estrogen, progesterone, methyladenine, ram rete fluid or « inhibine » extracted from ram rete fluid. In these preliminary non-quantitative experiments, no definite alterations of meiosis were noted.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"4 1","pages":"1263-1271"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85259040","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}
J. Thiéry, M. Blanc, J. Ravault, J. Pelletier, A. Caraty, C. Lavenet, P. Orgeur, J. Poirier, G. Venier
Summary. Oestradiol benzoate (OB), when given to ovariectomized ewes under hormo- nally induced oestrous cycles, caused both negative and positive feedback effects, i. e. decreased FSH levels were followed by an FSH surge 15 to 18 hrs later concomitant with a preovulatory-like LH release. This injection also caused a prolactin surge with a spiking release pattern between 9 to 18 to 30 to 42 hrs later. Basal FSH levels, as well as those obtained after OB injection, progressively increased from December to April. Between December and February, no significant variations in prolactin secretion were detected, while later on (February to April) both basal prolactin levels, and those obtained after OB injection rose significantly. These long-term variations of both FSH and prolactin secretion indicate seasonal effects. After anterior deafferentation of the mediobasal hypothalamus (MBH), FSH levels decreased drastically, but remained detectable. The OB-induced surges were totally sup- pressed in some animals, while in others they showed a very small residual response at the time of the residual LH release. Thus, FSH secretion could be regulated by the same hypo- thalamic hormone as LH secretion, i. e. LH-RH. The tonic and/or cyclic regulation was located in the part of the brain anterior to the cut, probably in the septopreoptic-anterior hypothalamic areas. Residual secretion could be dueto the activity of the mediobasal areas,
{"title":"Effects of anterior and posterior hypothalamic deafferentation on gonadotrophin and prolactin secretion in ovariectomized ewes under hormonally induced oestrous cycles","authors":"J. Thiéry, M. Blanc, J. Ravault, J. Pelletier, A. Caraty, C. Lavenet, P. Orgeur, J. Poirier, G. Venier","doi":"10.1051/RND:19790709","DOIUrl":"https://doi.org/10.1051/RND:19790709","url":null,"abstract":"Summary. Oestradiol benzoate (OB), when given to ovariectomized ewes under hormo- nally induced oestrous cycles, caused both negative and positive feedback effects, i. e. decreased FSH levels were followed by an FSH surge 15 to 18 hrs later concomitant with a preovulatory-like LH release. This injection also caused a prolactin surge with a spiking release pattern between 9 to 18 to 30 to 42 hrs later. Basal FSH levels, as well as those obtained after OB injection, progressively increased from December to April. Between December and February, no significant variations in prolactin secretion were detected, while later on (February to April) both basal prolactin levels, and those obtained after OB injection rose significantly. These long-term variations of both FSH and prolactin secretion indicate seasonal effects. After anterior deafferentation of the mediobasal hypothalamus (MBH), FSH levels decreased drastically, but remained detectable. The OB-induced surges were totally sup- pressed in some animals, while in others they showed a very small residual response at the time of the residual LH release. Thus, FSH secretion could be regulated by the same hypo- thalamic hormone as LH secretion, i. e. LH-RH. The tonic and/or cyclic regulation was located in the part of the brain anterior to the cut, probably in the septopreoptic-anterior hypothalamic areas. Residual secretion could be dueto the activity of the mediobasal areas,","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"88 1","pages":"1081-1097"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84344614","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}
{"title":"Urea cycling and ammonia absorption in vivo in the digestive tract of the rat","authors":"C. Demigné, C. Rémésy","doi":"10.1051/RND:19790633","DOIUrl":"https://doi.org/10.1051/RND:19790633","url":null,"abstract":"","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"116 1","pages":"929-935"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79833647","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}
G. Noulin, C. Besse, B. Lebourg, J. C. Artault, Th. Bauvais
A regenerating appendage of P. dilatatus develops in an incubation chamber located in the stump. This chamber is filled with a fibrous, alveolar material containing chitin and an acid, non-sulphated mucosubstance hydrolyzed by testis hyaluronidase. The apical surfaces of the epithelial cells of the regenerating bud show differentiations-very short, dark-tipped microvilli and carrier vesicles which are probably involved in the secretion of the material.
{"title":"Etude du matériel sécrété dans la chambre de régénération d'un appendice locomoteur de Porcellio dilatatus Br. (Crustacea : Isopoda)","authors":"G. Noulin, C. Besse, B. Lebourg, J. C. Artault, Th. Bauvais","doi":"10.1051/rnd:19791016","DOIUrl":"https://doi.org/10.1051/rnd:19791016","url":null,"abstract":"A regenerating appendage of P. dilatatus develops in an incubation chamber located in the stump. This chamber is filled with a fibrous, alveolar material containing chitin and an acid, non-sulphated mucosubstance hydrolyzed by testis hyaluronidase. The apical surfaces of the epithelial cells of the regenerating bud show differentiations-very short, dark-tipped microvilli and carrier vesicles which are probably involved in the secretion of the material.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"49 1","pages":"1807-1816"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86590476","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}
S. Fournier-delpech, G. Colas, M. Courot, R. Ortavant, G. Brice, C. Cornu, Y. Guérin, Y. Lebreton
Ram spermatozoa from the distal caput, corpus, and cauda epididymis and ejaculated spermatozoa were artificially inseminated in 170 ewes which had been treated with an ovulatory dose of PMSG 61 ! 4 hrs previously. Results were expressed as the percent of ewes pregnant 18 days after insemination (F = with positive progesterone assay/ Q inseminated) and embryonic survival (ES = ewes lambing/ pregnant on day 18). F =0, 8, 12, 54, 78, 80 and 72 p. 100 respectively after insemination with 20 x 10 6 total spermatozoa/horn from the caput, corpus, I, II and III, proximal cauda, distal cauda, and ejaculate. Development of sperm fertilizing ability parallelled the development of sperm motility. However when ewes were inseminated with high number of motile spermatozoa, ES was 0, 77, 86, 100 and 86 p. 100 with spermatozoa from the corpus I --!II, the corpus III, the proximal cauda, the distal cauda, and the ejaculate respectively. Thus, the sperm from middle corpus are totally unable to produce viable lambs.
本研究以170只母羊为研究对象，用排卵剂量的PMSG 61对其进行人工授精。4小时前。结果用授精后18天怀孕母羊的百分比(F =孕酮检测阳性/ Q)和胚胎存活率(ES =产羔/第18天怀孕母羊)表示。F =0、8、12、54、78、80和72 p. 100，分别来自头、体、I、II和III、近尾、远尾和射精的20 × 106个精子/角。精子受精能力的发展与精子运动能力的发展是同步的。然而，当母羊用大量活动精子受精时，ES分别为0、77、86、100和86 p. 100。二、三、近尾、远尾和射精。因此，来自中体的精子完全不能产生可存活的羔羊。
{"title":"Epididymal sperm maturation in the ram : motility, fertilizing ability and embryonic survival after uterine artificial insemination in the ewe","authors":"S. Fournier-delpech, G. Colas, M. Courot, R. Ortavant, G. Brice, C. Cornu, Y. Guérin, Y. Lebreton","doi":"10.1051/RND:19790505","DOIUrl":"https://doi.org/10.1051/RND:19790505","url":null,"abstract":"Ram spermatozoa from the distal caput, corpus, and cauda epididymis and ejaculated spermatozoa were artificially inseminated in 170 ewes which had been treated with an ovulatory dose of PMSG 61 ! 4 hrs previously. Results were expressed as the percent of ewes pregnant 18 days after insemination (F = with positive progesterone assay/ Q inseminated) and embryonic survival (ES = ewes lambing/ pregnant on day 18). F =0, 8, 12, 54, 78, 80 and 72 p. 100 respectively after insemination with 20 x 10 6 total spermatozoa/horn from the caput, corpus, I, II and III, proximal cauda, distal cauda, and ejaculate. Development of sperm fertilizing ability parallelled the development of sperm motility. However when ewes were inseminated with high number of motile spermatozoa, ES was 0, 77, 86, 100 and 86 p. 100 with spermatozoa from the corpus I --!II, the corpus III, the proximal cauda, the distal cauda, and the ejaculate respectively. Thus, the sperm from middle corpus are totally unable to produce viable lambs.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"82 1","pages":"597-605"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88985151","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}
The histogenesis of the fetal gonad of Macaca fascicularis was studied from the genital ridge stage in 24 fetuses (16 males and 8 females) aged 36 to 55 days. Observations were carried out using light and electron microscopy on serial sections of the specimens embedded in epon. The genital ridge was formed of a mesenchymal blastema covered by a peripheral epithelium. The first stages of differentiation (37 to 39 days) were the same in the testis and the ovary. We observed an antero posterior and centrifugal differentiation of the sex cords in the blastema from the peripheral mesenchyma of the mesonephric ducts at the anterior pole of the gonad. The mesonephric ducts and the peripheral epithelium contributed very little directly to sex cord formation (Pi. I). The separation of the newly formed cords was accelerated by vascular invasion from the mesonephros. Definitive testicular structure was acquired between 40 and 43 days. The presence of the peripheral testicular artery was a determinant of the growth of the tunica albuginea (Pi. 111). No large changes were observed in the ovary between 40 and 55 days (Pl. IV).
{"title":"Differentiation of the fetal gonad of Macaca fascicularis with special reference to the testis","authors":"D. Dang, J. Fouquet","doi":"10.1051/RND:19790803","DOIUrl":"https://doi.org/10.1051/RND:19790803","url":null,"abstract":"The histogenesis of the fetal gonad of Macaca fascicularis was studied from the genital ridge stage in 24 fetuses (16 males and 8 females) aged 36 to 55 days. Observations were carried out using light and electron microscopy on serial sections of the specimens embedded in epon. The genital ridge was formed of a mesenchymal blastema covered by a peripheral epithelium. The first stages of differentiation (37 to 39 days) were the same in the testis and the ovary. We observed an antero posterior and centrifugal differentiation of the sex cords in the blastema from the peripheral mesenchyma of the mesonephric ducts at the anterior pole of the gonad. The mesonephric ducts and the peripheral epithelium contributed very little directly to sex cord formation (Pi. I). The separation of the newly formed cords was accelerated by vascular invasion from the mesonephros. Definitive testicular structure was acquired between 40 and 43 days. The presence of the peripheral testicular artery was a determinant of the growth of the tunica albuginea (Pi. 111). No large changes were observed in the ovary between 40 and 55 days (Pl. IV).","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"143 1","pages":"1197-1209"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86191983","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}
O. Schmitt, T. Degas, P. Pérot, M. Langlois, B. Dumont
a secondary network which is only visible as a whole at a rather high magnification. The organization of both connective tissue networks were defined by considering various morphological traits, and objective and subjective methods were suggested for their appraisal. The reference scales used were illustrated. The proposed methods would have various useful applications : systematic studies of perimysium of different muscles, influence of biological factors of variation (age, sex, genetics...) and, in the case of meat animals, consequences on meat texture and tenderness.
{"title":"Etude morpho-anatomique du primysium (Mthodes de description et d'valuation)","authors":"O. Schmitt, T. Degas, P. Pérot, M. Langlois, B. Dumont","doi":"10.1051/RND:19790101","DOIUrl":"https://doi.org/10.1051/RND:19790101","url":null,"abstract":"a secondary network which is only visible as a whole at a rather high magnification. The organization of both connective tissue networks were defined by considering various morphological traits, and objective and subjective methods were suggested for their appraisal. The reference scales used were illustrated. The proposed methods would have various useful applications : systematic studies of perimysium of different muscles, influence of biological factors of variation (age, sex, genetics...) and, in the case of meat animals, consequences on meat texture and tenderness.","PeriodicalId":7885,"journal":{"name":"Annales De Biologie Animale Biochimie Biophysique","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80458157","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}
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