ARTICLE
TITLE

Influence of Collection Frequency on the Quality of Ejaculates from Large White and Pietrain Boars

SUMMARY

Semen from Large White and Pietrain boars was collected at 3 and 4 day intervals. Volume, percentages of live, immature and motile spermatozoa and tail abnormalities were evaluated in order to assess ejaculate quality. The number of insemination doses per ejaculate was calculated for each breed and collection frequency. Reducing the interval between collections doesn’t modify ejaculate volume and spermatozoa motility but it increases the percentage of gametes that are immature or have an abnormal tail. A collection frequency of 3 days is better because the number of insemination doses per year is higher.

KEYWORDS

 Articles related

V. Miclea,M. Zahan,Ilona Gyorgy,Ileana Miclea    

. Semen was harvested in two stages from boars aged 3, 4 and 7 years. In the first stage semen was collected at 2 and 3 day intervals and in the second stage after 7 days. The quality of ejaculates collected twice a week increases with boar age from 3 to... see more


Wage Ratna Rohaeni,Edi Supriadi,Untung Susanto,Tina Dewi Rosahdi    

In addition to carbohydrates, rice contains other minerals that function to growth and development of vital human organs. On the other hand, the content is influenced by genetic and milling processes. Indonesian Centre of Rice Research (ICRR) has genetic... see more


Rolf Peterson    

There is strong empirical support for the island rule, whereby body size in insular populations of animals tends toward gigantism in small-bodied species and dwarfism in large-bodied species (>10 kg).  For large-bodied species, underlying reasons for ... see more


Muyibat M. Olaitan,George Mangse,Chukwuma C. Ogbaga,Taofik O. Uthman    

AbstractBackground: Ocimum gratissimum L. is a well-known tropical and subtropical plant widely utilised for both medicinal and nutritional purposes. However, its continuous existence is currently threatened because of excessive human exploitation and no... see more


May Yarni,Berliana Cakra Kusuma    

This study aims to improve student learning outcomes by applying Online-Based Hypnoteaching Learning Methods. The method used is quasi-experimental. The sample consisted of 69 students selected randomly. Data collection uses pretest and post-test with le... see more