SciELO - Scientific Electronic Library Online

 
vol.35 issue1Frequence of infection by Giardia lamblia (Kunstler, 1882) in dogs (Canis familiaris) available trough the Faust and Collaborators Method (1939) and Auramine Staining in Canoas, RS, BrazilViability of swine semen stored at 5°C according to the cooling rate and previous incubation author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Ciência Rural

Print version ISSN 0103-8478On-line version ISSN 1678-4596

Abstract

FERREIRA, Fabiane Mendonça et al. Mating behavior and seminal characteristics in young landrace and large white boars. Cienc. Rural [online]. 2005, vol.35, n.1, pp.131-137. ISSN 0103-8478.  https://doi.org/10.1590/S0103-84782005000100021.

The aim of this work was to evaluate mating behavior and seminal characteristics of Landrace (LD) and Large White (LW) boars from 143 to 232 days of age. With 143 days of age, LD (n=28) and LW (n=34) boars were evaluated in relation to mating behavior. Being 150 days of age, semen was collected from 33 of these males during eleven weeks to evaluate sperm production and quality. No difference was observed between breeds in relation to mating behavior. During the period of semen collection, there was an increase in semen volume, sperm concentration and motility, total sperm in ejaculate, and in daily sperm output (DSO). The percent of abnormal sperm cells decreased during the period and there was no difference between breeds (P=0.523). The LD boars ejaculated higher semen volume (P=0,016), total sperm in ejaculate (P=0.070), and showed higher DSO (P=0.042). These data indicate that LD boars show higher sperm production, and higher potential to produce semen doses in post pubertal period.

Keywords : boar; reproduction; sperm production; age; breed.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License