id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
grj-291	Lukanov, Hristo; Pavlova, Ivelina; Genchev, Atanas; Petrov, Todor	Egg production characteristics of several Bulgarian chicken breeds	2025	10	.pdf	application/pdf	7890	413	51	The Egg Production Efficiency Index (EPEI) as an economic indicator for measuring poultry egg production. A similar trend is observed in egg production, with approximately 97 million tonnes produced in 2023, of which around 94% were chicken eggs (FAO, 2024).	cache/grj-291.pdf	txt/grj-291.txt