Performance and carcass traits
Article Abstract:
Performance and carcass characteristics arising from heterosis, recombination, direct and maternal influences in 12 pairing types among purebred and crossbred Landrace and Hampshire swines were evaluated to determine the merits of each mating type. Hampshire-sired pigs have less fat and a larger longissimus muscle area than do the other pigs. On the other hand, offspring from a Landrace parent is longer although recombination losses with respect to length were considerable. Heterosis effects were considerable for each individual indicating that crossbred pigs have higher productivity.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Maternal traits
Article Abstract:
The effects of heterosis and recombination in Landrace, Hampshire and crossbred sows' milk composition and quantity, as well as on litter characteristics at parturition and at day 21, were evaluated. The effect of heterosis on milk production and composition was not significant for the breeds tested. Recombination losses were also not significant. However, maternal genetic effect approximation showed that litters of Landrace sows were superior in both number and weight as compared to those of other breeds.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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The progesterone receptor gene maps to porcine chromosome 9p13-p11 by a rodent-porcine somatic cell hybrid panel
Article Abstract:
A partial pig PGR cDNA sequence with inferred intron-exon boundary information humans was used to design oligonucleotide primers. Using a polymerase chain reaction, the porcine PGR gene's genomic region between exons 7 and 8 was amplified. The 100 bp of the 5' end of the sequence with exon 7 and the 11 bp of the 3' end of the sequence with exon 8 were matched and completely verified the identity of the PCR product.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1998
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