Dimethylformamide as a cryoprotectant for canine semen diluted and frozen in ACP-106C Mota Filho AC, Teles CH, Jucá RP, Cardoso JF, Uchoa DC, Campello CC, Silva AR, Silva LD Carnivore Reproduction Laboratory, Veterinary College, State University of Ceará, Fortaleza, CE, Brazil The objective was to assess the effect of adding various concentrations of dimethylformamide on [...]
Quality of frozen-thawed semen in brown bear is not affected by timing of glycerol addition Alvarez-Rodríguez M, Alvarez M, Gomes-Alves S, Borragan S, Martinez-Pastor F, de Paz P, Anel L. University of León, 24071 León, Spain. We have tested several freezing protocols for brown bear semen, modifying the time when glycerol was added (before and [...]
Centrifugation on PureSperm® density-gradient improved quality of spermatozoa from frozen-thawed dog semen Dorado J, Alcaráz L, Duarte N, Portero JM, Acha D, Demyda S, Muñoz-Serrano A, Hidalgo M. Department of Medicine and Animal Surgery, University of Cordoba, Córdoba, Spain. The main objective of this study was to investigate if centrifugation through PureSperm(®) density-gradient can improve [...]
Time trends, environmental factors and genetic basis of semen traits collected in Holstein bulls under commercial conditions Karoui S, Díaz C, Serrano M, Cue R, Celorrio I, Carabaño MJ Animal Breeding Department, National Institute for Agriculture and Food Research and Technology, Ctra. de La Coruña Km 7.5, 28040 Madrid, Spain The fact that results of [...]
Simple and economic colloidal centrifugation protocols may be incorporated into the clinical equine sperm processing procedure Gutiérrez-Cepeda L, Fernández A, Crespo F, Gosálvez J, Serres C Animal Medicine and Surgery Department, Veterinary Faculty, UCM, Avda. Puerta de Hierro s/n, Ciudad Universitaria, 28040 Madrid, Spain; Centro Militar de Cría Caballar, (FESCCR-Ministerio de Defensa), C/Arsenio Gutiérrez Palacios [...]
Effects of antioxidants and duration of pre-freezing equilibration on frozen-thawed ram semen Câmara DR, Silva SV, Almeida FC, Nunes JF, Guerra MM Department of Veterinary Medicine, Federal University of Alagoas, Viçosa-AL. Brazil The objective was to evaluate the effects of various antioxidants and duration of pre-freezing equilibration on cryopreservation of ram semen. Semen samples from [...]
Sperm structure and motility in the eusocial naked mole-rat, Heterocephalus glaber: a case of degenerative orthogenesis in the absence of sperm competition? Gerhard van der Horst, Liana Maree1, Sanet H Kotzé and M Justin O’Riain Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa; Division of Anatomy and Histology, Department of Biomedical [...]
Modification of spermatozoa quality in mature small ruminants Martin GB, de St Jorre TJ, Al Mohsen FA, Malecki IA UWA Institute of Agriculture M082, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia This review is based largely, but not entirely, on the assumption that gamete quality is directly linked to sperm output [...]
Melatonin protects ram spermatozoa from cryopreservation injuries in a dose-dependent manner Succu S, Berlinguer F, Pasciu V, Satta V, Leoni GG, Naitana S Department of Animal Biology, University of Sassari, Sassari, Italy Cryopreservation harms spermatozoa at different levels and thus impairs their fertilizing ability. The role of melatonin in protecting spermatozoa from different kind injuries [...]
Effect of exogenous DNA on bovine sperm functionality using the sperm mediated gene transfer (SMGT) technique Canovas S, Gutierrez-Adan A, Gadea J Department of Physiology, Veterinary Faculty, University of Murcia, Murcia, Spain Sperm mediated gene transfer (SMGT) could provide the opportunity to carry out transgenesis on a mass scale using spermatozoa as vectors for exogenous [...]
