VetSRev
Database of veterinary systematic reviews
Database of veterinary systematic reviews
Research in Veterinary Science (2021) 136: 111–118
DOI: 10.1016/j.anifeedsci.2021.115080
The purpose of this systematic review was to evaluate the potential benefits of antioxidant enrichment of semen extenders. These substances are used to combat oxidative stress during processing and conservation of rooster semen. A literature search was performed in June 2020 using the keywords rooster AND (semen OR spermatozoa OR sperm OR ejaculate OR ejaculation). This report followed the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) guidelines. The PICO (population intervention comparison outcome) question was defined to compare roosters (Population) which had added antioxidants in the semen (Intervention) compared to the no-antioxidant group (Control); the outcome was semen quality (Outcome). Only articles investigating rooster cooled or frozen enriched semen with antioxidant extenders (Gallus Gallus domesticus) were selected by reading the title and abstract, totalizing 38 articles. After full text reading, we found that only 13 studies carried out sperm characteristics and fertility assays. To assess article quality, 15 items related to rooster breeding conditions, seminal collection methodology, and analyzed variables (seminal characteristics and fertility test) were established. There were positive effects of antioxidants on the preservation of seminal characteristics (motility, viability, membrane integrity, antioxidant activity, and lipid peroxidation) and on semen fertility after the conservation process. We conclude that the antioxidants reduce the oxidative stress and improve fertilizing capacity. The most used substances for cooled semen are glutathione, CoQ10, and l-carnitine; whereas for frozen semen, resveratrol, lycopene, and quercitin are most frequently used.
Leao, A. P. A., Souza, A. V. de, Mesquita, N. F., Pereira, L. J., & Zangeronimo, M. G. (2021). Antioxidant enrichment of rooster semen extenders - a systematic review. Research in Veterinary Science, 136, 111–118. https://doi.org/10.1016/j.anifeedsci.2021.115080 oxidative stress, cryopreservation, Animal Reproduction and Embryology [LL250], meta-analysis, effects, liveweight gain, liveweight gains, methodology, methods, techniques, systematic reviews, Animal Nutrition (Physiology) [LL510], Mathematics and Statistics [ZZ100], Meat Producing Animals [LL120], conservation, data analysis, guidelines, recommendations, research, studies, peroxidation, fertility, enrichment, broiler performance, broilers, chickens, domesticated birds, fowls, Gallus, Gallus gallus, poultry, feed conversion efficiency, feed intake, cocks, semen, semen characters, carcass yield, oxidation, glutathione, lipid peroxidation, antioxidants, strains, processing, intervention, probiotics, Feed Additives [RR130], resveratrol, fertilization, fertilizing, motility, sperm, sperm motility, spermatozoa, ova, Microbial Ecology [ZZ333], cockerels, Cell, Tissue and Embryo Manipulation [WW300], cell membranes, preservation, freezing, ejaculation, frozen semen, semen diluent additives, semen diluents, semen extenders, semen preservation, storage