Zobrazeno 1 - 10
of 81
pro vyhledávání: '"R.E. Wilde"'
Publikováno v:
Veterinární Medicína, Vol 62, Iss 8, Pp 437-442 (2017)
The mammalian testis typically operates on the brink of hypoxia; the long-standing dogma is that increased testicular temperature increases metabolism, but blood flow is unaffected and the resulting hypoxia reduces sperm motility and morphology. In r
Externí odkaz:
https://doaj.org/article/527ab83e03274d8083e7334f96ba2e28
Publikováno v:
Theriogenology. 131:177-181
We tested the hypothesis that hypoxia replicates effects of hyperthermia on reducing number and quality of sperm produced, whereas hyperoxia mitigates effects of hyperthermia. Forty-eight CD-1 mice (∼50 d old), inspired air with 13, 21, or 95% O2 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dea6702d14b146b5967026a53536e57
https://doi.org/10.1016/j.theriogenology.2019.03.040
https://doi.org/10.1016/j.theriogenology.2019.03.040
Publikováno v:
Veterinární medicína. 62:437-442
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf9f86793963cbe5fabf481e80e53f53
https://doi.org/10.17221/124/2016-vetmed
https://doi.org/10.17221/124/2016-vetmed
Autor:
John P. Kastelic, R.E. Wilde, Eunice Oba, G. Rizzoto, Leonardo F.C. Brito, Jacob C. Thundathil, C.M.Q. Barros Adwell
Publikováno v:
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2018-12-11T17:20:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-08-01 Two experiments were done in bulls to determine: total testicular blood flow, testis oxygenation and heat, and effects of ambient temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8f6e4bcd233c9ddb8a8b1fc4ceb7553
Publikováno v:
Journal of Dairy Science. 98:987-998
Holstein bull calves often reach artificial insemination centers in suboptimal body condition. Early-life nutrition is reported to increase reproductive performance in beef bulls. The objective was to determine whether early-life nutrition in Holstei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ac3c19d75628535d0b87f6e09c79273
https://doi.org/10.3168/jds.2014-8564
https://doi.org/10.3168/jds.2014-8564
Autor:
B. Rudolphi, M. Heppelmann, Marion Piechotta, A. K. Sander, John P. Kastelic, Heinrich Bollwein, Hans-Joachim Schuberth, Martin Kaske, R.E. Wilde
Publikováno v:
Journal of Dairy Science. 95:1367-1370
Because peripartal production diseases are prevalent in dairy cows, early recognition is crucial. Several studies reported metabolic variables as risk predictors for subsequent diseases. To improve on-farm testing and application of those methods, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1db530f22939a0ae4161cfcd5346f25e
https://doi.org/10.3168/jds.2011-4622
https://doi.org/10.3168/jds.2011-4622
Publikováno v:
Theriogenology. 77:940-951
The objectives were to compare testicular physical characteristics and post-thaw sperm characteristics and their associations with fertility in Holstein bulls used for AI. Ten Holstein bulls (4–5 y old) were classified as either high-fertility (HF)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32542a371edd7ee8108d55de03b67b53
https://doi.org/10.1016/j.theriogenology.2011.09.026
https://doi.org/10.1016/j.theriogenology.2011.09.026
Autor:
P.R. Whittaker, D.M. Veira, John P. Kastelic, Reuben J. Mapletoft, M.F. Martinez, M.G. Colazo, Q.A. Gavaga, R.E. Wilde, J.A. Small, Raúl C. Mainar-Jaime
Publikováno v:
Theriogenology. 65:557-572
The objective was to determine the efficacy of a previously used CIDR or melengestrol acetate (MGA; 0.5mg/head/day) for resynchronization of estrus in beef heifers not pregnant to timed-AI (TAI). In three experiments and a field trial, heifers were r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b7003aac43820b0c565ae19a45fa103
https://doi.org/10.1016/j.theriogenology.2005.06.001
https://doi.org/10.1016/j.theriogenology.2005.06.001
Publikováno v:
Theriogenology. 78(1)
This study was conducted to evaluate testicular ultrasonogram pixel intensity during sexual development in bulls and to determine its relationship with semen quality, sperm production, and quantitative testicular histology. Beef bulls (N = 152) were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff262e70edf002dc05daf4aed391c0c3
https://pubmed.ncbi.nlm.nih.gov/22401830
https://pubmed.ncbi.nlm.nih.gov/22401830
Publikováno v:
Theriogenology. 77(7)
Sexual development and reproductive function were studied in 22 Angus × Charolais and 17 Angus bulls from 6 to 16 mo of age. Associations of average daily gain (ADG) and body weight with ages at puberty and at maturity (satisfactory semen quality),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e96c66537b7103210af6a930217d4f1
https://pubmed.ncbi.nlm.nih.gov/22225693
https://pubmed.ncbi.nlm.nih.gov/22225693