BMC Veterinary Research

Table 2 The effect of thermal manipulation (TM) on hatchability in broiler chicks subjected to different thermal manipulation treatments during embryogenesis

From: Thermal manipulation of the broilers embryos: expression of muscle markers genes and weights of body and internal organs during embryonic and post-hatch days

Parameters	Groups
	Control	TM₁	TM₂	TM₃	TM₄
Non-hatched eggs	38 (16.24%)	41 (16.27%)	42 (16.67%)	62 (22.46%)	64 (23.03%)
Total (hatch)	196/234	211/252	210/252	214/276	214/278
Hatchability %	83.76^a	83.73^a	83.33^a	77.53^b	76.97 ^b

^a-b Within the same ED, means ± SD with different superscripts differ significantly (P < 0.05)

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ISSN: 1746-6148

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