Reproductive behavior of male rainbow trout (Oncorhynchus mykiss) during reproductive period
Journal Title: Scientific Journal of Animal Science - Year 2016, Vol 5, Issue 4
Abstract
In this study it was described and characterized the reproductive behavior of male rainbow trout during reproductive period. Results indicate that reproductive period is in the months of August until February. Semen production variated at population level, 60% of population presented higher production in September 33.59 ± 13.69 mL, 30% in October 28.76 ± 10.22 mL and 10% in November 75.53 mL. Statistical analysis detected significant differences between the months (P<0.05) and at individual level (P<0.05). Spermatozoids concentration mL-1 variated at individual and population level. Spermatic concentration in 70% of population decreased as reproductive period progressed. August and September where the months with highest concentrations of spermatozoids mL-17.71 ± 2.85, 7.76 ± 1.85 x 109 respectively. Statistical analysis detected significate differences between months (P< 0.05). Seminal pH was alkaline with light variations at individual and population level. Statistical analysis did not detected significant differences between months nor individual months (P< 0.05). This confirms that there is a variation in seminal quality of the same organism. Which is interesting for selection of best breeders, decrease maintenance costs and also reduce number of males.
Authors and Affiliations
Jesús Dámaso Bustamante-González*| Laboratorio de Reproducción Genética y Sanidad Acuícola. Universidad Autónoma Metropolitana Unidad Xochimilco. Calzada del Hueso N°1100, Col. Villa Quietud, C. P. 04960, Coyoacán, Ciudad de México., Martha Rodríguez-Gutiérrez| Laboratorio de Reproducción Genética y Sanidad Acuícola. Universidad Autónoma Metropolitana Unidad Xochimilco. Calzada del Hueso N°1100, Col. Villa Quietud, C. P. 04960, Coyoacán, Ciudad de México., Araceli Cortés García| Laboratorio de Reproducción Genética y Sanidad Acuícola. Universidad Autónoma Metropolitana Unidad Xochimilco. Calzada del Hueso N°1100, Col. Villa Quietud, C. P. 04960, Coyoacán, Ciudad de México., Mariela González Rentería| Laboratorio de Reproducción Genética y Sanidad Acuícola. Universidad Autónoma Metropolitana Unidad Xochimilco. Calzada del Hueso N°1100, Col. Villa Quietud, C. P. 04960, Coyoacán, Ciudad de México.
Keywords
Related Articles
- EP ID EP837
- DOI 10.14196/sjas.v5i4.2163
- Views 471
- Downloads 27
Impact of maternal effects on ranking of animal models for genetic parameter estimation for birth weight in male Afrikan
Variance components for additive direct, additive maternal, permanent environmental maternal effects, the covariance between additive direct and maternal effects were estimated by restricted maximum likelihood, fitting...
Influence of stage of lactation on quantitative and qualitative milk production parameters in goats
Goat lactation is synonymous to an agricultural production function with three distinct production regions namely: early, mid and late lactation. It is characterised by an increase in milk yield in early lactation to a...
Use of ultrasonography for pregnancy diagnosis in red Sokoto goats
The present study was conducted to diagnose pregnancy 30 days following estrus synchronization and natural mating using transabdominal ultrasonography and to compare the traditional use of non return rates of estrus wi...
Effect of sex, colour and weight group on carcass characteristics of Japanese quail
This work was conducted on Japanese quails (Coturnix japonica) to determine the effects of sex, colour and weight group on their carcass characteristics. The birds were housed in deep litter pen at the poultry unit of...
Organ weight: As Influenced by color, sex and weight group in Japanese quail
This study was carried out on Japanese quails (Coturnix japonica) to determine the effect of sex, colour and weight group on various organ weights. The birds were housed in deep litter pen at the poultry unit of Univer...