Urinary 3-methylhistidine and Progressive Winter Undernutrition in White-tailed Deer
Table 1
Table 1. Effect of short-term (15-19 April) extreme nutritional deprivation on cumulative mass loss and urinary 3-methylhistidine:creatinine (3-MeH:C) and urea nitrogen:creatinine (UN:C) ratios of slightly and highly undernourished white-tailed deer, Grand Rapids, Minnesota, sampled on 11 and 19 April 1988. (LPLE = low protein-low energy).a
| Group Deer no. |
Sex | Pre-severe-deprivation | Post-severe-deprivation | ||||
| Cumulative | Urinary | Cumulative | Urinary | ||||
| mass loss % |
3-MeH:C (µmol:mg) |
UN:C (mg:mg) |
mass loss % |
3-MeH:C (µmol:mg) |
UN:C (mg:mg) |
||
| LPLE Restrictedb | |||||||
| 79c | M | 29.0 | 1.02 | 28.1 | >29.0 | 1.88 | 53.1 |
| 92c | F | 27.1 | 0.62 | 20.1 | 29.0 | 1.00 | 51.9 |
| 47 | F | 15.0 | 0.03 | 2.1 | 17.0 | 0.04 | 6.4 |
| 65 | M | 22.5 | 0.17 | 6.1 | 28.1 | 0.46 | 22.2 |
| Mean | 23.4 | 0.46 | 14.1 | >25.8 | 0.84 | 33.4 | |
| SE | 3.1 | 0.23 | 6.1 | 0.40 | 11.5 | ||
| LPLE Control | |||||||
| 55 | F | 4.7 | 0.03 | 2.7 | 7.0 | 0.04 | 8.1 |
| 06 | F | 2.0 | 0.05 | 3.2 | 17.4 | 0.03 | 3.8 |
| 66 | M | 15.1 | 0.05 | 3.8 | 17.2 | 0.06 | 6.9 |
| Mean | 7.3 | 0.04 | 3.2 | 13.9 | 0.04 | 6.3 | |
| SE | 4.0 | 0.01 | 0.3 | 3.4 | 0.01 | 1.3 | |
| a | Cumulative mass loss (since 4 February) and urinary UN:C ratio data are from DelGiudice et al. (1994a). |
| b | Until this period of extreme nutritional restriction (15-19 Apr), the slightly undernourished group was fed a LPLE diet (see text) ad libitum, and the highly undernourished group was fed restricted amounts of the LPLE feed. |
| c | Deer nos. 79 and 92 died on 18 and 19 April, respectively; mass of no. 79 was not obtained at death. |
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