The effect of age on the morphometric sperm traits of domestic pigs (Sus scrofa domestica).

A test for paedomorphism in domestic pig cranial morphology

Domestic animals are often described as paedomorphic, meaning that they retain juvenile characteristics into adulthood. Through a three-dimensional landmark-based geometric morphometric analysis of cranial morphology at three growth stages, we demonstrate that wild boar (n = 138) and domestic pigs (n = 106) (Sus scrofa) follow distinct ontogenetic trajectories. With the exception of the size ra...

Sperm morphology of cattle and domestic pigs.

Sperm morphology was evaluated (using Blom classification) in 44 ejaculates of 11 bulls and 44 ejaculates of 11 boars. Significant differences in sperm morphology were found between bulls and boars. In addition, the correlations between frequency of morphological changes and morphometrical traits of boar spermatozoa were demonstrated. More morphological anomalies of spermatozoa were recorded in...

Genetic diversity in wild (Sus scrofa scrofa) and domestic (Sus scrofa domestica) pigs and their hybrids based on polymorphism of a fragment of the D-loop region in the mitochondrial DNA.

We examined the variation in mitochondrial DNA by sequencing the D-loop region in wild and domestic (large-white breed) pigs, in hybrids between domestic and wild pigs, and in Monteiro pigs. A D-loop fragment of approximately 330 bp was amplified by PCR. Sequencing of DNA amplicons identified haplotypes previously described as European and Asian types. Monteiro pigs and wild pigs had European h...

THE INTESTINAL TRACT AND THE PEYER’S PATCH DIMENSIONS OF WILD BOARS (Sus scrofa L., 1758) AND DOMESTIC PIGS (Sus scrofa f. domestica). AN ALLOMETRIC COMPARISON

Microsatellite-based characterization of Southern African domestic pigs (Sus scrofa domestica)

H. Swart, A. Kotze, P.A.S. Olivier and J.P. Grobler 1 Department of Biodiversity, University of Limpopo, P/Bag X1106, Sovenga 0272, South Africa 2 Animal Improvement Institute, Agricultural Research Council, P/Bag X2, Irene 0062, South Africa 3 Department of Genetics, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa 4 National Zoological Gardens of South Africa, PO Box ...