Spawning methods affect the reproductive efficiency of piracanjuba fish (Brycon orbignyanus) in restocking programs

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Revista Colombiana De Ciencias Pecuarias Pub Date : 2020-06-17 DOI:10.17533/udea.rccp.v34n1a03

P. L. Castro, N. Lopera-Barrero, Elenice S dos Reis-Goes, F. P. Souza, S. C. Bomfim, André L Julien-Ferraz, R. Ribeiro

引用次数: 0

Abstract

Background: Preserving the genetic diversity of wild fish is an important consideration for restocking programs, as inbreeding can compromise progeny survival as well as impact the resilience of natural populations. Objective: To evaluate the influence of spawning method: semi-natural (SN) or strip-spawning (ST), and the number of breeders (1♀:3♂ and 2♀:6♂) on the reproductive efficiency and genetic diversity of B. orbignyanus progeny destined for restoration of wild stocks. Methods: Rates of fertilization, hatching and broodfish mortality were recorded. For genetic evaluations (allele frequency, observed and expected heterozygosity, Shannon index, inbreeding coefficient, molecular variance analysis, and genetic differentiation), breeders (n=24), and their progenies (90 larvae/treatment) were sampled and analyzed using

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繁殖方法影响补充计划中吡喃朱巴鱼（Brycon orignyanus）的繁殖效率

背景：保护野生鱼类的遗传多样性是补充计划的一个重要考虑因素，因为近亲繁殖会影响后代的生存，并影响自然种群的恢复力。目的：评估半自然（SN）或条带产卵（ST）产卵方法的影响，以及繁殖者的数量（1♀:3.♂ 和2♀:6.♂) 关于拟恢复野生种群的B.orbignyanus后代的繁殖效率和遗传多样性。方法：记录受精率、孵化率和窝鱼死亡率。为了进行遗传评估（等位基因频率、观察到的和预期的杂合性、香农指数、近交系数、分子方差分析和遗传分化），对育种者（n=24）及其后代（90只幼虫/处理）进行采样和分析，使用

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来源期刊

Revista Colombiana De Ciencias Pecuarias AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： The editors of Revista Colombiana de Ciencias Pecuarias (RCCP) welcome the submission of original manuscripts on experimental and clinical studies associated with the broad areas of animal sciences and veterinary medicine as they interface with biochemistry, molecular biology, physiology, pharmacology, toxicology, pathology, microbiology, parasitology, immunology and epidemiology. The scope of the journal includes studies of basic and applied research in animal management and production, feeding and nutrition, reproduction, breeding, genetics, animal welfare and behavior; as well as animal production focussed from biotechnology, soil science, agrostology, silvopastoral systems, livestock economics and the environment. The criteria for acceptance of papers submitted for publication are originality, quality and clarity of the content. Each contribution must be based on original, unpublished research that has not been simultaneously submitted to other journals. All papers will be peer reviewed. All authors bear responsibility for ensuring the integrity and quality of their reported research. It is the author''s responsibility to secure permission to use figures or tables that have been published elsewhere. Contributions may be classified as original research, review, rapid communication, clinical case studies or methodological articles, as well as news/commentaries or letters to the editor. Most review articles are invited by the editor. Authors interested in submitting a review article should contact the corresponding editor. Rapid publication of original manuscripts is a goal of the journal. Manuscripts must be written in English. Each manuscript is considered for publication with the understanding that it has not been simultaneously submitted to any other journal. Upon acceptance for publication, papers are subject to editorial review and revision.