TABLE 4.

Regression analysis of the main effect of garlic powder (quantitative factor) on the relative weight of bursa of Fabricius and thymus.

		Bursa of Fabricius			Thymus
Source	df	Sum of squares	R 2	p Value	Sum of squares	R 2	p Value
Model	1	0.008	0.26	0.0002	0.007	0.23	0.0007
Lack of fit	2	0.001		0.2024	0.001		0.3887
Pure error	44	0.021			0.024
Total error	46	0.023			0.025
Equation		0.13 + 0.02 GP			0.4 + 0.02 GP

Abbreviation: GP, garlic powder.