Mice selected for high (H6) and low (L6) 6-week body weight and a randombred control population (C1) were characterized for rate, composition and efficiency of growth. Individual body weights were obtained from birth to 8 weeks of age on 682 mice representative of the three lines. Individual whole c
Feed efficiency and body composition of selected and unselected mice
✍ Scribed by M. Kownacki; W. Zieliński; T. Jezierski
- Publisher
- Springer
- Year
- 1977
- Tongue
- English
- Weight
- 435 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0040-5752
No coin nor oath required. For personal study only.
✦ Synopsis
An examination was carried out of the feed intake, feed efficiency and body composition of selected and unselected mice. It was demonstrated that selected mice utilised food more economically, and, in total, produced more protein than the control animals. However, selection had a negative influence on the percentage content of protein and ash. Also, selection caused greater adiposity of selected females and a greater water content in the bodies of selected males (in %).
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Mice were sampled from a line selected for increased postweaning weight gain from three to six weeks and from a randombred control line originating from the same base population. Body weights were recorded at each of 14 ages from day 5 to day 98. The Richards and logistic growth functions were fitte