Examination of Some Processing Methods for Freezing Boar Semen
نویسندگان
چکیده
منابع مشابه
Some Factors Affecting Freezing of Boar Semen in 5 ml Maxi-straws*
A series of experiments were conducted to determine the suitable freezing and thawing temperatures for the freezing of boar semen in 5 ml maxi-straws. The ultrastructure, in vitro fertilization (IVF) and artificial insemination (AI) of frozen-thawed semen were also be evaluated. The 5 cm freezing height gave the best results not only in post-thaw motility rate (54.00%), but also in normal acros...
متن کاملEffect of Different Freezing Rates and Thawing Methods on the Quality of Frozen Boar Semen
A total of 30 ejaculates from three Hampshire crossbred boars were used to study the effect of freezing rates and thawing methods on quality of frozen boar semen. Semen was frozen using three freezing rates-30 0 c/min, 50 0 c/min and 70 0 c/min in a programmable biological semen freezer. The semen characteristics viz., sperm motility, live sperm, HOST reacted spermatozoa and intact acrosome wer...
متن کاملEvaluation of two different boar semen freezing protocols and their effects on semen quality after thawing
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 the seminal plasma is removed. In the protocol Paquignon the seminal plasma is removed at environmental temperature and the Westendorf protocol suggests that the plasma withdrawal should be made at 15oC. The sperm suspe...
متن کاملStorage of boar semen.
The problems, aspects and methods of liquid storage and freeze-thawing of boar semen are discussed and a review is given on examination of spermatozoa by the recent fluorescent staining methods.
متن کاملDeep freezing of concentrated boar semen for intra-uterine insemination: effects on sperm viability.
The use of deep-frozen boar semen for artificial insemination (AI) is constrained by the need for high sperm numbers per dose, yielding few doses per ejaculate. With the advancement of new, intra-uterine insemination strategies, there is an opportunity for freezing small volumes containing high sperm numbers, provided the spermatozoa properly sustain cryopreservation. The present study aimed to...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1976
ISSN: 0004-9417
DOI: 10.1071/bi9760325