[Retracted] Improved Chicken Reproduction and Yield of Improved Poultry from Titanium Dioxide (TiO₂) Nanoparticles Coated in Jimma Horro Area of Kellem Wollega Zone, Ethiopia

Table 2

Reproduction and manufacturing yields of the titanium dioxide nanoparticle coated improved poultry.

Parameter	Tibe (55)	Ilu kitaye (55)	Nunu (55)	Total
	Mean ± SE	Mean ± SE	Mean ± SE	Mean	Range	value
Egg produced from exotic per year	232 ± 0.5^a	230.1 ± 0.59^b	232.3 ± 0.59^c	225.2	220–250	0.001
Egg laid per hen per clutch	42.35 ± 0.2^a	42.27 ± 0.2^a	40.18 ± 0.29^b	41.60	37–47	0.001
Age at 1^st egg (exotic)	5.94 ± 0.0^b	6.4 ± 0.8^a	6.21 ± 0.06^a	6.00	5–7	0.001
Age at slaughtering (exotic)	4.76 ± 0.1^b	5 ± 0.086^ba	5.02 ± 0.07^a	5.01	4–6	0.003