Table A1.

Summary of the studies included in the meta-analysis.

Author	Country	Product	Duration, d	Age 1	Method of supplementation	Dose, mg/kg BW
Abdel-Hamid et al. [48]	Egypt	BP	28	≤15	Aqueous solution orally with a syringe	268, 321
Al-Homidan et al. [18]	Egypt	PRO	42	≤15	Mixed with a basal diet	250, 500
Attia et al. [69]	Egypt	BP	70	>15	Aqueous solution orally with a syringe	54, 120, 171, 309, 600, 904
Attia et al. [70]	Egypt	BP	140	>15	Aqueous solution orally with a syringe	52, 114, 156, 335, 674, 1002
Attia et al. [2]	Egypt	BP, PRO	56	≤15	Aqueous solution orally with a syringe	100, 93
Attia et al. [14]	Egypt	BP, PRO	140	>15	Aqueous solution orally with a syringe	737, 735
Attia et al. [20]	Egypt	BP, PRO	280	>15	Oral capsules	423, 846, 423, 846
Dias et al. [71]	Brazil	BP	82	≤15	Aqueous solution orally with a syringe	1000
El-Hammady et al. [72]	Egypt	BP	56	>15	Orally through drinking water	500, 1000
Hashem et al. [73]	Egypt	PRO	70	>15	Mixed with a basal diet	30
Hashem et al. [1]	Egypt	PRO	35	≤15	Mixed with a basal diet	30, 60
Hassan et al. [17]	Egypt	BP	84	>15	Orally through drinking water	636, 1280
Piza et al. [74]	Brazil	PRO	32	≤15	Mixed with a basal diet	47, 93, 139
Sierra-Galicia et al. [19]	Mexico	BP, PRO	42	≤15	Orally through drinking water	500, 50
Waly et al. [16]	Egypt	PRO	56	≤15	Mixed with a basal diet	100, 150, 200
Zeedan et al. [15]	Egypt	BP	70	≤15	Orally through drinking water	140, 348, 487

BW: body weight; d: days; ¹: age in weeks; BP: bee pollen; PRO: propolis.