Importance of Indigenous Breeds of Chicken for Rural Economy and Their Improvements for Higher Production Performance

Table 4

Effect of crossbreeding using indigenous birds with respect to egg weight and egg production up to 52 weeks of age.

Traits	Cross	Cross performance	Indigenous performance	Country	References
Egg weight (g)	SB × BN	55	48	India	[27]
	SB × WN	56	52	-do-
	DR × indigenous	42.9	36.8	Nigeria	[25]
	BRN × WLH	47	45	India	[26]
	WLH × BRN	49		-do-	-do-
	Dominant Black × FU	51.45	47.19	Nigeria	[31]
	FU × Dominant Black	51.35		-do-
	Local Kei × RIR	44.2	38.3	Ethiopia	[32]
	PB2 × A	40.56	36.49	India	[8]
	NP × DR	50.43	42.48	-do-	[8, 28]
	NP × RIR	49.56		-do-
	(NP × DR) × DR	50.63		-do-
	R × NU	50.32	48.40	-do-	[8, 28]
	NU × R	45.85		-do-
	PB2 × NU	52.34		-do-
	NU × R × R	53.42		-do-
	PB2 × NU × R	53.84		-do-
Egg production 52 weeks (no)	PB2 × A	70.23	66.30	-do-	[8]
	NP × DR	89.17	57.58	-do-	[8, 28]
	NP × R	87.44		-do-
	R × NU	119.39	77.02	-do-
	NU × R	102.90		-do-
	PB2 × NU	96.23		-do-
	NU × R × R	121.10		-do-
	PB2 × NU × R	110.46		-do-

A: indigenous fowl Guwahati, BN: Black Nicobari, BRN: Brown Nicobari, DR: Dahlem Red, FU: Fulani ecotype, NP: Palampur native, NU: Udaipur native, PB2: meat-type synthetic breed, R: Rhode Island Red, SB: synthetic broiler, WN: White Nicobari, WLH: White Leghorn, and -do-: same as above.