This study aimed to evaluate the effect of sodium caseinate added into freezing extender on
the sperm parameters of cryopreserved bull semen and in vitro and in vivo fertility. One …

Five sexually mature Friesian bulls (3-4 years old and 600-650 kg as an average body
weight) were used in the present study. Two experiments were carried out. The first …

The aim of this study was to assess the addition of 2% sodium caseinate in a commercial
egg yolk‐based medium in frozen ovine semen. Eight Dorper males were used for the study …

O uso de sêmen resfriado em operações de inseminação artificial resulta em taxas de
prenhez mais altas do que o uso de sêmen congelado. Esse resultado parece estar …

The artificial insemination is the best technique for genetic improvement of livestock. In this
technique, the best quality semen collected from genetically superior sire, is evaluated …

BACKGROUND: Due to pour quality of cryopreserved boar semen, artificial innsemination
with frozen-thawed semen is quite limited. Developing protocols of boar semen …

The aim of this study was to evaluate the quality of boar sperm using two different freezing
techniques. The protocols were proposed by Westendorf and Paquignon. In both methods …

BACKGROUND: Application of frozen-thawed semen is an important tool for improving the
vivo fertility, but the process of freezing and thawing causes significant damage to …

During the semen cryopreservation, various biochemical and anatomical compartments in
the sperm cells may be altered. Therefore, the most important part of sperm-freezing …

In swine spermatozoa, the damage caused by cryopreservation is more severe than other
species, provoking reduced potential for fertilization. Adjustments in the freezing extender …