Table 1.

Percentages of peripheral blood T cell and B cell subpopulations in turkeys administered feeds with different Met sources and content (n = 7)

	CD4+	CD4+CD25+	CD8+	CD4+CD8+	IgM+
Group1
0-DLML	13.8	0.39	1.98	0.35	8.43
0-MHAL	14.8	0.39	2.08	0.39	8.24
0-DLMH	11.7	0.37	1.49	0.30	7.66
0-MHAH	11.2	0.38	1.86	0.33	9.22
HE-DLML	29.1	0.46	2.87	0.53	5.90
HE-MHAL	25.3	0.46	1.60	0.50	5.77
HE-DLMH	21.6	0.42	2.24	0.51	5.67
HE-MHAH	19.8	0.46	1.75	0.50	6.31
Infection
0	12.87	0.382	1.854	0.341	8.39
HE	23.96	0.450	2.116	0.511	5.91
Met dosage
Low	20.76	0.423	2.295	0.445	7.06
High	16.07	0.409	1.675	0.407	7.24
Met source
DLM	19.06	0.410	1.987	0.419	6.94
MHA	17.77	0.422	1.983	0.433	7.36
SEM2	1.250	0.013	0.138	0.022	0.255
p – values
Infection	< 0.001	0.011	0.333	< 0.001	< 0.001
Dose	0.009	0.581	0.027	0.319	0.572
Source	0.450	0.636	0.987	0.712	0.197
Interaction	nd3	nd	nd	nd	nd

¹ Feeds administered to uninfected (0) and infected (HE) turkeys in weeks 1–4 and 5–8, contained DLM and the equivalent amount of MHA at two levels: low (_L) - 0.55, 0.45, and high (_H) - 0.78, 0.65, respectively [% as fed]

²SEM- standard error of the mean

³nd – not detected: no significant infection x dose, infection x source, dose x source or infection x dose x source interactions