Determination of the optimal mating age of colonised Glossina brevipalpis and Glossina austeni using walk-in field cages in South Africa

Table 1 Summary of various mating parameters for Glossina brevipalpis and G. austeni in the field cage for accessing the time of peak mating activity and optimal mating age

	Possible pairs	Actual mated	Overall proportion (PM)	Relative mating index (RMI ± SD)	Mating latency time (min ± SD)	Mating duration (min ± SD)	Mean spermathecal value	Insemination rate
G. brevipalpis
Fly activity morning	90	63	0.70	-	73.15 ± 0.04	174.21 ± 0.06	0.75 ± 0.20	1.00
Fly activity afternoon	120	79	0.66	-	47.16 ± 0.03	165.13 ± 0.06	0.86 ± 0.12	0.99
Male age	210	97	0.46	-	54.40 ± 0.03	173.20 ± 0.03	0.72 ± 0.31	0.94
9 days	-	67	-	0.68 ± 0.23	55.03 ± 0.03	193.48 ± 0.04	0.74 ± 0.28	0.94
6 days	-	24	-	0.25 ± 0.20	56.38 ± 0.03	152.24 ± 0.04	0.79 ± 0.28	0.96
3 days	-	6	-	0.06 ± 0.06	40.33 ± 0.05	176.00 ± 0.04	0.25 ± 0.35	0.33
G. austeni
Fly activity morning	120	59	0.49	-	94.33 ± 0.04	204.50 ± 0.06	0.80 ± 0.20	0.98
Fly activity afternoon	150	88	0.59	-	58.36 ± 0.04	138.63 ± 0.04	0.68 ± 0.25	0.94
Male age	360	153	0.43	-	94.30 ± 0.05	137.40 ± 0.05	0.57 ± 0.30	0.93
9 days	-	83	-	0.54 ± 0.12	97.10 ± 0.05	144.80 ± 0.06	0.61 ± 0.30	0.95
6 days	-	45	-	0.30 ± 0.16	84.07 ± 0.04	139.20 ± 0.04	0.54 ± 0.25	0.96
3 days	-	25	-	0.17 ± 0.14	103.56 ± 0.05	126.80 ± 0.04	0.51 ± 0.34	0.80

ISSN: 1756-3305