Results 31 to 40 of about 133,000 (278)

Functional anatomy of the spermatheca and its duct in the seed bug Lygaeus simulans (Heteroptera: Lygaeidae)

European Journal of Entomology, 2000
Female genitalia of lygaeid bugs are characterized by a tube-shaped ductus receptaculi (spermathecal duct) connecting the bursa copulatrix with the highly coiled receptaculum seminis (spermatheca).
Robert GSCHWENTNER, Andreas TADLER
doaj   +1 more source

Single fathers by choice using surrogacy. Why men decide to have a child as a single parent [PDF]

, 2017
STUDY QUESTION: Why do men decide to have a child by surrogacy as a single parent? SUMMARY ANSWER: Reasons included feeling that it was the right time (i.e.
Baiocco, Roberto, Carone, Nicola, Lingiardi, Vittorio   +2 more
core   +2 more sources

Embryo donation parents' attitudes towards donors : comparison with adoption [PDF]

, 2008
BACKGROUND: Embryo donation produces a family structure where neither rearing parent is genetically related to the child, as in adoption. It is not known how embryo donation parents view the donors compared with how adoptive parents view the birth ...
MacCallum, Fiona
core   +1 more source

Relationship between the Time of Intrauterine Insemination and Pregnancy Outcome, Based on Islamic Recommendations

Health, Spirituality and Medical Ethics, 2020
Background and Objectives: Intrauterine insemination (IUI) is one of the methods of infertility treatment. When is the best time to do this assisted reproduction procedure? There are many Islamic narrations about the appropriate time for fertilization in
Ashraf Pahlevani Qomi, reza tabatabaei, akram Heidari, Abbas Ali Vashiyan, Azadeh Asgarian, Elham Asa   +5 more
doaj  

Use of Infrared Thermography during Ejaculation Process and Its Link with Semen Quality and Freezability in Dogs

Animals, 2021
This study aimed to describe the thermal variation of external reproductive tracts during ejaculation in relation to sperm quality in dogs. Forty-six adult fertile dogs were monitored using a thermal camera before, during and after the semen collection ...
Koray Tekin, Muhammed Enes İnanç, Doğukan Özen, Beste Cil, Kemal Tuna Olğaç, Burak Yılmaz, Umut Taşdemir, Pürhan Barbaros Tuncer, Serhat Büyükleblebici, Ali Daşkın, Ongun Uysal, Calogero Stelletta   +11 more
doaj   +1 more source

Meta‐GWAS of Pig Semen Quality Traits Reveals Conserved Genes Regulating Mammalian Fertility

Advanced Science, EarlyView.
This study incorporated 14 210 individuals to perform a GWAS meta‐analysis of six semen quality traits. The GWAS meta‐analysis identifies 234 GWAS loci associated with semen quality traits. The incorporation with a functional genomics resource explains potential genetic regulation of ∼40% GWAS signals underlying semen quality traits.
Qing Lin, Xiaodian Cai, Zhanming Zhong, Tingting Li, Xinyou Chen, Wondossen Ayalew, Zhiting Xu, Chen Wei, Xiaoke Zhang, Hong Cheng, Zhenyang Zhang, Xuehua Li, Yongjie Tang, Siqian Chen, Jun Zhou, Jinglei Si, Xibo Wu, Chao Ning, Qishan Wang, Yuchun Pan, Yahui Gao, Jiaqi Li, Ying Yu, Zhe Zhang, Yunxiang Zhao, Lingzhao Fang, Zhe Zhang   +26 more
wiley   +1 more source

The Effectiveness of Pharmacological Synchronization of the Estrous Cycle in Hinds (Cervus elaphus L.): A Pilot Field Trial

Animals, 2020
The aim was to estimate the effective pharmacological method of the estrous cycle synchronization by checking the effects of synchronization by measurement of progesterone (P4) and 17-beta estradiol (E2) concentration by RIA and artificial insemination ...
Anna J. Korzekwa, Władysław Kordan, Angelika M. Kotlarczyk, Roland Kozdrowski   +3 more
doaj   +1 more source

Climate‐Smart Dairy Practices: The Role of Practice Clusters in Enhancing the Performance of Dairy Farms in Kenya

Agribusiness, EarlyView.
ABSTRACT Climate variability is affecting the productivity, profitability, and resilience of smallholder dairy producers in developing countries. The adoption of climate‐smart (CS) dairy practices has been promoted to mitigate these negative effects. However, while interest in dairy CS practices is growing, empirical evidence on their adoption patterns
Mercy Mburu, Amin Mugera, John Mburu, Rose Nyikal, Oghaiki Asaah Ndambi   +4 more
wiley   +1 more source

Optimizing Cryopreservation: The Effect of MitoTEMPO and Glycerol Ratios on Ram Semen Quality After Freezing and Thawing

Veterinary Medicine and Science
Background MitoTEMPO is an important mitochondrial targeted and ROS scavenging antioxidant. It is often used as antiviral, anticancer and immunomodulator agents.
Recep Hakkı Koca, İbrahim Halil Güngör, Aslıhan Çakır Cihangiroğlu, Tutku Can Acısu, Nida Badıllı, Serkan Ali Akarsu, Şeyma Özer Kaya, Emre Kaya, Gaffari Türk, Mustafa Sönmez, Seyfettin Gür   +10 more
doaj   +1 more source

Evaluation of Spermatological Parameters of Frozen Bull Semen with Conventional and CASA (Computer-Aided Sperm Analysis) Method

İstanbul Üniversitesi Veteriner Fakültesi Dergisi, 2016
The aim of this study was to compare the assessments made by the CASA system and subjective method (by using phase-contrast microscope) for spermatological examinations of imported and locally produced semen.
Necmettin TEKİN, Ali DAŞKIN, Ongun UYSAL, Ergun AKÇAY, Mehmet Borga TIRPAN, Çiğdem ÇEBİ ŞEN   +5 more
doaj   +1 more source