Mortality and Morbidity of Beef Calves in Free-Range Farms in Alentejo, Portugal—A Preliminary Study

Table 2

Pearson’s correlation coefficients among variables ().

	Herd size	% Weaned calves	Deaths (birth to 30 d)	Deaths (30 d to weaning)	Diarrhea	Respiratory disease	Sudden deaths
Herd size	1.00	N.S.	0.73	0.61	0.65	0.43	0.61
% Weaned calves	N.S.	1.00	−0.51	N.S.	N.S.	N.S.	−0.42
Deaths (birth to 30 d)	0.73	−0.51	1.00	0.66	0.47	0.38	0.62
Deaths (30 d to weaning)	0.61	N.S.	0.66	1.00	N.S.	N.S.	0.54
Diarrhea	0.65	N.S.	0.47	N.S.	1.00	0.59	0.52
Respiratory disease	0.43	N.S.	0.38	N.S.	0.59	1.00	0.46
Sudden deaths	0.61	−0.42	0.62	0.54	0.52	0.46	1.00

Herd size and % weaned calves were transformed; the remaining variables were transformed; values are significant at the level; N.S., not significant.