İlktan Baştan

Mehmet Akif Ersoy University

Libido and sperm quality output relationship has already not clear in farm animals. The present study compared reaction time (RT) as a libido indicator and the pre-freeze and post-thaw sperm quality of AI bulls. Before the collection of ejaculates (n= 53, from 22 AI bulls (4.2 ± 1 years of age)), RTs were collected using a chronometer as the interv...

The main objective of sperm production centers is to produce as many straws as possible from the obtained ejaculates using the optimal dilution rate. To this end, this study is the first to evaluate the effect of different semen extender rates on Anatolian buffalo semen quality. Ejaculates were collected by artificial vagina from three Anatolian bu...

Conservation of local breeds is important strategic planning for any country, due to their regional compatibility, disease resistance, and transferable genetic heritage. Therefore, a national gene bank was established in our country. Although genetic materials such as somatic cells, semen, and embryos belonging to many species and breeds are being...

Conventional buffalo semen freezing studies are limited in Anatolian buffaloes, which are overly sensitive to exogenous stimulation. The present study's object was to determine the main features of Anatolian buffalo semen obtained by artificial vagina method for the first time. A total number of 150 ejaculates were collected from three Anatolian Bu...

Abstract The objective of this study was to evaluate the effect of 3 differrent extenders on post thaw sperm quality of locally adapted Anatolian Black Bulls. For this study a total of 21 ejaculates were collected with artificial vagina from 4 bulls within Anatolian Black Cattle Genetic Resources Conservation Herd belong to International Center For...

In this study, the quality of frozen bull semen was evaluated with the proAKAP4 level test. Sixty straws of frozen bull semen from various batches (n = 30) belonging to six bulls were used in the current study. The frozen bull semen samples were analysed in terms of proAKAP4 levels, sperm morphology and sperm movement parameters at hour 0 and hour...

The conservation of the unique animal genetic resources for endangered or future gene transfer studies is an important strategic planning for each country. Sperm stored in gene banks are at the risk of contamination with liquid nitrogen and also sperm can be damaged and lose fertilization ability due to liquid nitrogen replenishment failure. Sperm...

Dietilheksil fitalat, sert yapılı plastiklere esneklik katmak amacıyla dünya genelinde yaygın bir şeklide kullanılan, çevresel toksik bir kimyasaldır. İçerisinde bulunduğu ve gevşek bağlarla tutunduğu ürünlerden kolayca ayrılarak çevreye yayılan dietilheksil fitalat sindirim, solunum ve deri teması yollarıyla insan ve hayvanların vücuduna geçmekte...

TLR4 proteins are presented as a respond to sperm cells during fertilization luminal and glandular epithelia of bovine endometrium. However, the effects of a TLR4 blocker on kinematic parameters, viability and other in vitro quality tests was not known on cryopreserved bovine semen at the present. The aim of this study was to examine effects of blo...

Due to their inheritable genetic heritage, regional compatibility, resistance, and immunity to local diseases, to protect and conserve our local breed Anatolian Buffalo is our national responsibility. In this context, commercial production of cryopreserved Anatolian Buffalo semen for using in artificial insemination and embryo transfer was started...

The objective was to determine effects of gallic acid (GA) and carnosic acid (CA), present in carob pods and rosemary extract respectively, on frozen‐thawed ram spermatozoa. Thirty ejaculates were collected from five Merino rams, pooled, diluted in Tris‐based extender and divided into five equal portions containing: 0.05 or 2 mM of GA; 0.05 or 0.2...

The objective of this study was to determine effects of supplementing Tris-based semen extenders with either cholesterol-loaded cyclodextrin (CLC) or 7-dehydrocholesterol loaded cyclodextrin (7-DCLC) plus trehalose (T) for cryopreservation of ram semen. Semen was collected with an artificial vagina from five Merino rams (2–3 years of age) during th...

Diethylhexyl Phthalate (DEHP) is an environmentally toxic chemical commonly used in worldwide to make flexible to rigid plastics. Due to its loosely bonded to plastic products, DEHP easily leaches into the environment. After human and animals took into DEHP through digestion, respiration and skin contact, it causes various toxic effects in the body...

Essential components of cooling and freezing media for cryopreservation of semen in farm species are egg yolk and glycerol. The protective features of egg yolk on semen freezing and cooling were discovered in 1939. About 70 years, egg yolk (EY) has been mostly used in extenders for cryopreservation or liquid storage of semen. But EY has got some ma...

Boğa istasyonlarında, kaliteli dondurulmuş sperma üretiminin sağlanabilmesi için, boğaların barındırılmasından, spermanın alınmasına ve satışına kadar geçen süre dikkate alınarak kriyoprezervasyon süreci planlanmakta ve uygulanmaktadır. Bu sebeple, sperma üretiminde kullanılan boğaların libidoları dolayısıyla sperma alınana kadar geçen süre, sonrak...

Keywords: freezability, bull semen, CASA. Optimization of the center bull production is depending on the application of a fine control chart creation. The use of CASA system improved the precision and accuracy on the early identification of production problems. Aim of the present work was the modelling of a control chart that considered the monthly...

Small concentrations of the synthetic polymer polyvinyl alcohol (PVA) were found to inhibit the formation of ice in water/cryoprotectant solutions. Therefore, we aim to define a methodology to evaluate the freezability of Angora goat semen diluted with 3 different molecular weighted polyvinyl alcohol (PVA; 9, 18 and 100 kDa) with computer-assisted...

Optimization of the center bull production is depending on the application of a fine control chart creation. The use of CASA system improved the precision and accuracy on the early identification of production problems. Aim of the present work was the modelling of a control chart that considered the monthly variations during a whole year in terms o...

Routine semen collection in AI centers, bulls are generally trained with false mounting (allowing the bull to mount, but not ejaculate) on phantom animal and restrained to maximize the sexual stimulation and sperm quality. This method of false mounting (FM) activity increases the libido and sperm output. Therefore, we aim to evaluate the number of...