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Table 2
Specific activities (IU1/mg proteins) of the pancreatic enzymes
Species	Roe deer			Cattle
Stage	Adult	Young		Ruminant calf	Milk-fed calf
Age	> 1 year	< 1 year	%Δ¹	159 days	138 days	%Δ²
				(W group)	(MF group)
Chymotrypsin	1936 ± 33^†	1397 ± 65^‡	39.0	12 ± 43^§	16 ± 35^§	−25.0
Trypsin	95 ± 2^†	90 ± 3^†‡	5.5	102 ± 2^†	76 ± 1^‡	34.2
Elastase I	279 ± 7^†	233 ± 12^†‡	20.0	160 ± 35^‡§	57 ± 55^§	180.7
Elastase II	1423 ± 28^†	1286 ± 50^†	10.7	270 ± 139^‡	194 ± 219^‡	39.2
Lipase	209 ± 70^†	237 ±34^†	−11.9	477 ± 16^‡	738 ± 27^‡	−35.4
Amylase	15.6 ± 0.2^†§	14.1 ± 0.3^†	10.6	16.2 ± 0.4^§	8.9 ± 0.3^‡	81.4
Ratio:
Chymotrypsin/Trysin	22.4 ± 0.3^†	15.4 ± 0.7^‡	45.5	0.1 ± 0.4^§	0.3 ± 0.3^§	−66,7

Values are mean ± SEM (standard error of the mean).

^{†, ‡, §} Means within a row with different superscripts differ (P < 0.05).

Effect of species: Means within a row are different between species (P < 0.001) for chymotrypsin and Elastase II.

IU¹: International Unit.

%Δ: Difference between values: Adult values-Young values (Δ¹) or Ruminant values- Milk-fed values (Δ²) expressed as % of “Young values” and “Milk-fed values” respectively.

Guilloteau et al. BMC Veterinary Research 2012 8:70 doi:10.1186/1746-6148-8-70

Table 2