The objective of the study was to assess the semen characteristics of Jersey, Mithun and Siri breeds of bulls and to compare the suitability of Tris Eggyolk Citrate and commercial soya lecithin based BIOXcell extenders for cryopreservation of semen from the these breeds of bulls. The mean semen volume was 4.55± 1.57, 4.86±1.33 and 4.83±1.72 ml in Jersey, Mithun and Siri bulls, respectively. Mea...

Cryopreservation of seabass (Lates calcarifer) semen is an approach to increase the quantity and quality of seabass fry in aquaculture. However, cold shock can induce sperm injury leading to structural damage of the plasma membrane and loss of motility. Thus, the effect of cryopreservation on fatty acid composition and antioxidant enzyme activities of seabass sperm was determined. In cryopreser...

It is known that livestock animal semen very sensitive to cold shock during freezing processes, and this sensitivity directly affects post-thaw progressive motility, mitochondrial membrane potential, sperm nuclear DNA integrity in vitro spermatological parameters such as plasma acrosome integrity, fertility. In addition, with the sudden decrease total antioxidant level of after thawing, cells a...

ABSTRACT This study aimed to evaluate the addition of different concentrations IGF-I and insulin egg yolk-based extender improve bovine semen cryopreservation. Two experiments were developed effects additives in two commercial extenders, Botubov® (Experiment 1) Triladyl® 2), both with same design. Three ejaculates from four bulls (n = 12) used. Each ejaculate was divided into seven equal fracti...

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...

objective: evaluation of the effects of different doses of antioxidant taurine on oxidative stress and human sperm parameters following cryopreservation. materials and methods: the semen of 20 fertile men were divided to 5 aliquot, one part considered as a fresh after analysis of standard semen parameters (motility, abnormal morphology, viability) and protamine deficiency, dna damage and measu...

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...

Study objectives were to; 1) determine if supplementing of n-3 fatty acids improves membrane integrity, and hence viability and motility of stallion spermatozoa following cold storage, and following cryopreservation, and 2) determine if n-3 supplementation alters the fatty acid composition of stallion spermatozoa. Data indicate that following 90 d of n-3 supplementation daily sperm output and t...