. 2013 Apr-Jun;8(2):234–241.

Table 2.

Evaluation of developing resistance in three chicken Eimeria field isolates in coccidian-infected broiler chicks

Experimental group		AWG (g)	FCR (g/g)	Lesion score	Oocyst index	%GI_NNC	%OAA	AST
Experimental group		AWG (g)	FCR (g/g)	Lesion score	Oocyst index	%GI_NNC	%OAA	Ea	Em	Emi	Et
Isolate 1	Salinomycin	307.4^b	1.7^C	0.7^b	1.3	LE	PR	S	PR	S	S
	Amprolium+ethopabate	252.7^C	2.01^a	0.9^b	1.5	PR	R	PR	S	R	S
	Diclazuril	254.5^C	1.9^b	0.9^b	1.6	PR	R	PR	PR	S	S
	INC	237.1^C	2.03^a	1.9^a	1.4
	NNC	348.5^a	1.6^C	-	-
	S.E.M.	12.0	0.04	0.14	0.14
Isolate2	Salinomycin	284.9^b	1.77^bc	0.8^b	1.0^ab	LE	PR	R	R	R	S
	Amprolium+ethopabate	213.7^C	2.1^a	0.9^b	1.6^a	R	R	R	R	PR	S
	Diclazuril	224.3^C	1.9^ab	1.0^b	1.1^ab	PR	R	R	R	R	S
	INC	205.6^C	2.03^a	1.5^a	0.8^b
	NNC	348.5^a	1.65^C	-	-
	S.E.M.	14.9	0.04	0.09	0.13
Isolate 3	Salinomycin	249.6^b	1.74^C	1.5^bc	1.5^ab	PR	PR	R	PR	PR	PR
	Amprolium+ethopabate	196.9^C	2.1^b	2.1^ab	1.2^b	R	R	R	PR	R	R
	Diclazuril	258.1^b	1.7^C	1.2^C	1.9^ab	PR	PR	R	PR	R	S
	INC	145.3^d	2.75^a	2.3^a	2.6^a
	NNC	348.5^a	1.65^C	-	-
	S.E.M.	18.6	0.12	0.17	0.23

^a-c

Means sharing the same superscripts within each section do not differ (P ≤ 0.05).

AWG: Average weight gain: FCR: Feed conversion ratio; INC: Infected Non-medicated Control group; NNC: Non- Infected Non- medicated Control group;%GI_NNC=%WG_NNC-[(F_M-F_NNC)×10]-(OI_M-OI_INC)-[(LS_M-LS_INC)×2)]-(%mortality/2) where GI is Global Index, WG is weight gain, F is FCR, OI is oocyst index, LS is lesion score, M is medicated group;%OAA=[average GSR of medicated group-average GSR of INC]/average GSR of NNC-average GSR of INC]×100 where OAA is Optimum Anticoccidial Activity, GSR is Growth and Survival Ratio calculated as the cage weight at trial termination+the weight of any dead bird/the cage weight when infected; AST= 100%-(mean lesion score of medicated group-mean lesion score of INC×100%) wher AST is Anticoccidial Sensitivity Test; Ea: Eimeria acervulina; Em: E. maxima; Emi: E. mitis; Et: E. tenella; LE: Limited Efficacy; PR: Partially Resistant; RS: Reduced Sensitivity; R: Resistant; S: Sensitive;