Effects of Sex, Season and Breed on Live and Carcass Traits at the Ohio Swine Evaluation Station

Bruner, W. H.; Swiger, L. A.

doi:10.2527/jas1968.272383x

Cited by 30 publications

(32 citation statements)

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“…Parity and the parity-maternal heterosis interaction were non-significant sources of variation for all carcass traits studied. (1976) indicated that the sex differences for days required to produce 85 pounds of fat corrected muscle was 2.0 whereas the remaining estimates agreed in sign and relative magnitude with other published estimates (Hale and Southwell, 1967;Bruner and Swiger, 1968;Quijandria e^ ^1. , 1970).…”

Section: Carcass Traitssupporting

confidence: 67%

“…Similar differences for days to 220 pounds and and/or rate of gain were presented by Bruner andSwiger (1968), Quijandria ^ (1970) and Young e^ al. (1976b).…”

Section: W56supporting

confidence: 57%

“…, 1961;Hale and Southwell, 1967;Bruner and Swiger, 1968;Quijandria et al, 1970;Bereskin et al, 1973;Bereskin and Davey, 1974). Bereskin et al (1971), however, found no significant differences between sexes for any carcass traits.…”

Section: Non-genetic Effects On Swine Performancementioning

confidence: 99%

“…Some evidence of its affect cn feedlot performance has been presented (Smith and McLaren, 1967;. Age of dam has had little effect on carcass merit (Bruner and Swiger, 1968).…”

Section: Non-genetic Effects On Swine Performancementioning

confidence: 99%

“…season of farrow appears to affect all carcass measurements with fallfarrowed pigs generally producing the most desirable carcasses (Judge _e^ al., 1959;Bruner and Swiger, 1968;Quijandria ^ , 1970;.…”

Section: Non-genetic Effects On Swine Performancementioning

confidence: 99%

See 4 more Smart Citations

Individual and maternal heterosis estimated from single crosses and backcrosses of swine

Schneider

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Section: Carcass Traitssupporting

confidence: 67%

“…Similar differences for days to 220 pounds and and/or rate of gain were presented by Bruner andSwiger (1968), Quijandria ^ (1970) and Young e^ al. (1976b).…”

Section: W56supporting

confidence: 57%

Section: Non-genetic Effects On Swine Performancementioning

confidence: 99%

“…Some evidence of its affect cn feedlot performance has been presented (Smith and McLaren, 1967;. Age of dam has had little effect on carcass merit (Bruner and Swiger, 1968).…”

Section: Non-genetic Effects On Swine Performancementioning

confidence: 99%

Section: Non-genetic Effects On Swine Performancementioning

confidence: 99%

See 3 more Smart Citations

Individual and maternal heterosis estimated from single crosses and backcrosses of swine

Schneider

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Influence of energy and protein concentration in the diet on the performance of growing pigs 4. Effects of sex on response to dietary protein level

1972

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Two barrows and two gilts from each of 16 litters, by Landrace sires out of Large White x Landrace females, were fed individually one of 4 dietary protein levels (approximately 14 %, 17 %, 20 % and 23 % CP) at a common energy level (approximately 3165 kcal/kg DE), from an initial weight of 23 kg to slaughter at 59 kg. The 17 % CP diet gave 19 % faster growth and 17 % better feed conversion than the 14 % CP diet (P < 0-01) with no evident change resulting from further increase in protein level, while the 23 % CP diet gave 29% more lean than the 14% CP diet (P< 0-01), as assessed by dissection of a sample joint. There were no significant differences between sexes in growth rate, efficiency of feed conversion or carcass composition. Only depth of backfat on the shoulder and at 'K' and carcass length showed significant (P < 0-05) sex differences, and the only sex x diet interaction was in eye-muscle area. The results are discussed in relation to those presented in the previous three papers of the series.

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Feed intake in six lines of pigs and its influence on growth and carcass traits 1. Feeding twice daily for 20 min per session

Cöp¹,

Buiting²

1977

Anim. Sci.

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For a crossbreeding experiment six lines of pigs were developed from six breeds: Belgian Landrace (B), Pietrain (P), Dutch Landrace (N), Dutch Yorkshire (G), Duroc (D) and Hampshire (H). Out of 10 different litters per line, one female and one castrate male were housed and fed individually from 20 to 96 kg. All pigs were offered feed twice daily for 20 min exactly. Maximum differences in feed intake between the lines increased from 150 g at 25 kg to more than 500 g at 95 kg live weight. Daily intake of Pietrain pigs was lower than that of all other lines. Differences between the N, H and G lines were small. The difference between the feed intake of males and females increased from zero at 27 kg to 230 g at 75 kg. Differences in daily gain were greatest between the P and G lines, and doubled during the growing period from 80 g to 170 g. Differences in daily gain between the N, H and B lines were small. Pietrain pigs and, to a lesser extent, Belgian Landrace pigs produced more meaty carcasses but both had poorer meat quality than other other lines. It is concluded that differences in feed intake might be the main causal factor for the existence of differences between biological types of pigs.

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Effects of Sex, Season and Breed on Live and Carcass Traits at the Ohio Swine Evaluation Station

Cited by 30 publications

References 0 publications

Individual and maternal heterosis estimated from single crosses and backcrosses of swine

Individual and maternal heterosis estimated from single crosses and backcrosses of swine

Influence of energy and protein concentration in the diet on the performance of growing pigs 4. Effects of sex on response to dietary protein level

Feed intake in six lines of pigs and its influence on growth and carcass traits 1. Feeding twice daily for 20 min per session

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