A note on the comparative growth performance of pigs sired by Piétrain × Hampshire, Hampshire × Large White and Large White boars

Lishman, W. B.; Smith, W. C.

doi:10.1017/s0003356100023126

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Athough the data are not strictly comparable, other workers have also shown that breed variation in conformation has little effect on joint proportions and distribution of lean tissue (Smith et al 1973;Lishman & Smith 1979). Current interest in the condition known as pale, soft, exudative (PSE) muscle, coupled with lack of data on local breeds and the imported Duroc, were prime reasons for including muscle quality determinations in this study.…”

Section: Discussionmentioning

confidence: 97%

Comparative voluntary feed intakes, growth performance, carcass composition, and meat quality of Large White, Landrace, and Duroc pigs

Smith

Pearson

1986

New Zealand Journal of Experimental Agriculture

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The performances of Large White (27), Landrace (27), and Duroc (27) gilts on an ad libitum feeding regime were compared over the liveweight range 25-85 kg. Landrace gilts had the highest voluntary feed intakes; and the appetite of Durocs exceeded that of Large Whites, but only at ~ 65 kg liveweight. The breeds did not differ in growth rate, but Landrace gilts had higher feed conversion ratios and carcasses of lower lean content than the Duroc and Large White gilts which were similar in these traits. Landrace carcasses had a relatively lower proportion of bone and the three breeds had similar carcass lean: bone ratios. Duroc gilts had the highest killing-out percentages and Large Whites the lowest, but the breed differences were not significant. There were only small breed differences in joint proportions of the carcass and no breed effect on the distribution of lean tissue. A proportion of Duroc and Landrace carcasses had pale, soft, exudative musculature but the condition was not found in the Large Whites.

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Section: Discussionmentioning

confidence: 97%

Comparative voluntary feed intakes, growth performance, carcass composition, and meat quality of Large White, Landrace, and Duroc pigs

Smith

Pearson

1986

New Zealand Journal of Experimental Agriculture

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A comparison of the Duroc, Hampshire, Landrace, and Large White as terminal sire breeds of crossbred pigs slaughtered at 85 kg liveweight

Smith

Pearson

Purchas

1990

New Zealand Journal of Agricultural Research

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Anon-farrnstudywasundertaken,frrstly, to compare the Duroc and Hampshire as terminal sires in a three-way cross including the Landraceand Large White breeds and, secondly, to evaluate the latter cross against a two-way backcross involving the White breeds. Three boars of each sire breed were mated with crossbred sows of Large White, Landrace breeding and the progeny were grown to 85 kg liveweight on ad libitum feeding. Duroc-and Hampshire-sired litters hadrelatively fewer stillbirths but breed of sire did not influence the number oflive births in the litter or litter size at weaning. Durocand Hampshire-crosses reached slaughter weight 4 days earlier than the Large White-and Landracecrosses. They also had similar killing-out percentages and backfat measurements and these were higher and lower respectively than the crosses of the White breeds. Hampshire crosses had the largest eye muscles in cross-sectional area. Tissue composition of the carcass was not significantly different in Duroc-and Hampshire-crosses but lean and bone contents were higher and subcutaneous fat content was lower compared with the crosses of the White breeds. Breed of sire did not influence joint proportions and had little effecton the distribution of tissues within the carcass.

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The Crossbred Sire: Experimental Results for Swine

1987

Journal of Animal Science

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Experiments aimed at comparing crossbred and purebred boars were reviewed. These experiments showed that crossbred boars matured sexually more quickly than corresponding purebred boars: they exhibited greater testis weight, large ejaculate volume and had better semen quality. Young crossbred boars were more aggressive sexually and achieved a higher conception rate, particularly on first service. Differences between the two types of boars for litter size and weight were generally small and variable in direction. Growth rate, feed efficiency and carcass characteristics of progeny of purebred and crossbred boars were generally similar. In addition, there was little evidence that use of crossbred sires had any effect on variability of pig performance.

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A note on the comparative growth performance of pigs sired by Piétrain × Hampshire, Hampshire × Large White and Large White boars

Cited by 3 publications

References 7 publications

Comparative voluntary feed intakes, growth performance, carcass composition, and meat quality of Large White, Landrace, and Duroc pigs

Comparative voluntary feed intakes, growth performance, carcass composition, and meat quality of Large White, Landrace, and Duroc pigs

A comparison of the Duroc, Hampshire, Landrace, and Large White as terminal sire breeds of crossbred pigs slaughtered at 85 kg liveweight

The Crossbred Sire: Experimental Results for Swine

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