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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 Restricted^b
79^c	M	29.0	1.02	28.1	>29.0	1.88	53.1
92^c	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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