Marcia Lorena Monteiro da Silva, João Paulo Ferreira Rufino, Brenda de Meireles Lima, Marco Antonio de Freitas Mendonça, Francisco Alberto de Lima Chaves, Roseane Pinto Martins de Oliveira, Pedro de Queiroz Costa, Paulo Cesar Machado Andrade
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引用次数: 0
Abstract
The current investigation aimed to explore the effects of Myrciaria dubia liquid extract (MDLE) as the primary component of an extender for breeder rooster semen over different periods at room temperature. Fifteen breeder roosters (40 weeks of age, average body weight of 2.05±0.12) with confirmed fertility were used. Employing a factorial design (3x4), the treatments consisted of semen in natura and two semen extenders (an experimental based on MDLE and a commercial) subjected to four periods at room temperature post-collection (5, 10, 15 and 20 minutes) with four replicates (tubes) each. All variables evaluated in this study yielding significant results (p<0.05). Analyzed individually, the experimental extender based on MDLE exhibited a linear reduction (p<0.05) in motility and vigor results, while it caused an increase in pH values and percentages of sperm defects evaluated. When compared with semen in natura and commercial extender, the efficiency of MDLE as a semen extender was inferior to that observed with the commercial extender and similar to the results observed with semen in natura. Nonetheless, the experimental extender based on MDLE yielded satisfactory results for up to 15 minutes of storage time. In conclusion, MDLE can be considered as an alternative for composing a roosters' semen extender, maintaining sperm characteristics within acceptable limits for up to 15 minutes at room temperature. However, this experimental extender demonstrated lower efficiency than the commercial extender in maintaining the sperm quality at room temperature across all periods tested.
期刊介绍:
Animal Reproduction (AR) publishes original scientific papers and invited literature reviews, in the form of Basic Research, Biotechnology, Applied Research and Review Articles, with the goal of contributing to a better understanding of phenomena related to animal reproduction.
The scope of the journal applies to students, researchers and practitioners in the fields of veterinary, biology and animal science, also being of interest to practitioners of human medicine. Animal Reproduction Journal is the official organ of the Brazilian College of Animal Reproduction in Brazil.