TABLE 4.

Production values and death rates in young deer associated with IgG1 ELISA status^a

Total no. of deer	IgG1 test result (age)	Death rate (%)	Mean body wt at 15 mo (kg)	% of Animals with wt of >95 kg at 15 mo
201	Neg (6-8 mo); neg (12-15 mo)	3	104	93
39	Neg (6-8 mo); pos (12-15 mo)	8	100	77
76	Pos (all)	43	90.3	30

^aYoung deer (fawns) were screened by IgG1 ELISA to detect M. paratuberculosis infection at two ages, 6 to 8 months and 12 to 15 months. Subsequent production characteristics and death rates in these animals were recorded and matched against the diagnostic status of animals at the two time points. Pos, ELISA positive; neg, ELISA negative.