Effect of alternative cryopreservation procedures on bull semen
نویسندگان
چکیده
منابع مشابه
Effect of the Addition of Insulin Like Growth Factor-I (IGF-I) on Cryopreservation of Hariana Bull Semen
This experiment was designed to study the effect of insulin like growth factor-I (IGF-I) on cryopreservation of Hariana bull semen. For this purpose, semen ejaculates were collected from four Hariana bulls using artificial vagina at biweekly interval. The semen samples which possess more than 70% initial progressive motility and above 500 million/mL spermatozoa concentration was subsequently su...
متن کاملHigh dilution rate of bull semen affects cryopreservation outcomes: kinematic and flowcytometric parameters
BACKGROUND: Semen cryopreservation might be influenced by sperm concentration. OBJECTIVES: This study was conducted to investigate three different semen concentrations [100 (C100), 50 (C50), and 25 (C25) × 106 spermatozoa/mL] on freezability of bull semen. METHODS: On each collection day, four ejaculates were collected (a total of 24 ejaculates from four bulls), pooled and divided to three equ...
متن کاملDoes natural honey act as an alternative to antibiotics in the semen extender for cryopreservation of crossbred ram semen?
Antibiotics are added to semen extenders to take care of heavy microbial load, however, their continuous use poses a constant threat of developing antibiotic resistance by the common microbes present in the semen. Our hypothesis was that natural honey, having antibacterial activity and rich in fructose could replace the use of antibiotics and fructose in the semen extender. Twenty-four ejaculat...
متن کاملThe effect of antioxidant supplementation in semen extenders on semen quality and lipid peroxidation of chilled bull spermatozoa
The aim of this study was to determine the effects of the antioxidants superoxide dismutase (SOD),glutathione peroxidase (GPx) and butylated hydroxytoluene (BHT) on microscopic semen parameters andlipid peroxidation following the freeze-thawing of bull semen. Ejaculates were collected from five Holsteinbulls and pooled at 37°C. The semen samples were diluted with a CEY extender containing addit...
متن کاملThe Effect of Diffrent Factors on X- and Y Bearing Sperm in Bull Semen
Background: Newborn gender ratio is one of the most important factors in livestock industry. This ratio has affected on economic condition and controls sex-linked genetically transferred diseases. Offspring sex ratio is affected by such various factors. One of these factors is the Y to X bearing sperm ratio in normal semen that is called primary sex ratio, season and individual differences are ...
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ژورنال
عنوان ژورنال: Ankara Üniversitesi Veteriner Fakültesi Dergisi
سال: 2012
ISSN: 1300-0861
DOI: 10.1501/vetfak_0000002531