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| Titel: |
Effect on Carcass Traits of Selection for Increased Lean Tissue Growth Rate in Swine on Low or High Dietary Protein Levels |
| Auteur: |
Johansen, Sigurd Håkansson, Jan Andersson, Kjell |
| Verschenen in: |
Acta agriculturae Scandinavica. Section A, Animal science |
| Paginering: | Jaargang 43 (1993) nr. 4 pagina's 207-213 |
| Jaar: |
1993-11-01 |
| Inhoud: |
Pigs were selected for lean tissue growth rate (LTGR) in two lines, fed low (LP line) or high (HP line) protein levels. This investigation comprised 92 and 95 pigs, respectively, from generation 3 of the two lines, tested on low, medium and high protein diets between 25 and 105 kg body weight. HP compared to LP line pigs had higher ham percentage (P=0.02), thinner backfat (P=0.003) and lower intramuscular fat content (P = 0.01). A positive correlated response (P=0.02) in osteochondrosis score of femur (OCDf) was found in the HP line. There were unfavourable correlations (P<0.05) between OCDf and performance in the LP line. There were numerically negative correlations between length of the small intestines (LSI) and feed conversion ratio in both lines, and a numerically positive correlation between LSI and daily weight gain in the HP line. There were no interactions between selection lines and test diets. The present results indicate that selection for LTGR ought to be performed on a high protein feeding regime. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 7 gevonden artikelen
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