. 2023 Jul 11;102(10):102897. doi: 10.1016/j.psj.2023.102897

Table 10.

Effect of dietary GRE supplementation on differential leukocyte counts in broiler chicks (d 6 and 13).

Day 6 (parameters measured)2				Day 13 (parameters measured)2
Treatments¹	Heterophil (%)	Lymphocyte (%)	H:L ratio	Heterophil (%)	Lymphocyte (%)	H:L ratio
CON	54.00^ab	13.50^ab	0.264^b	51.67	18.00^bc	0.357^ab
MX	61.67^a	11.33^b	0.189^b	56.33	15.00^c	0.286^b
GRE-0.375%	53.00^ab	23.00^a	0.443^ab	54.33	28.00^a	0.531^ab
GRE-0.75%	41.00^b	22.33^ab	0.566^a	43.33	25.17^ab	0.597^ab
GRE-1.5%	48.50^ab	18.83^ab	0.410^ab	45.00	25.17^ab	0.600^a
GRE-3%	54.67^ab	19.17^ab	0.371^ab	45.00	24.50^abc	0.565^ab
SEM	3.317	2.560	0.062	3.308	2.265	0.697
P-value	0.0043	0.0155	0.0031	0.0345	0.0022	0.0076

^a-c

Mean values bearing different superscript letters within a column are significantly different (P < 0.05). n = 12 birds per treatment.

Treatment CON consisted of chicks fed unmedicated corn–soybean meal (SBM) basal without GRE; Treatment MX consisted of chicks given unmedicated corn–SBM basal into which bacitracin methylene disalicylate (BMD) was added at 0.055 g/kg diet; Treatment GRE-0.375% consisted of chicks given unmedicated corn–SBM basal into which GRE was added at 0.375% level; Treatments GRE-0.75%, GRE-1.5%, and GRE-3% consisted of chicks that were given diets similar to GRE-0.375% consisted of chicks that were given diets similar to GRE1 at 0.75%, 1.5%, and 3%, respectively.