Abstract
This researchers focused at how adding vitamin C (VC) to biochar and replacing it with a mineral supplement affected egg quality and laying hen performance. 50 experimental units were created from 400 laying hens using a 5 × 2 factorial treatment design (10 treatments, 5 repeats, and 8 laying hens per repetition). Biochar levels (0, 25, 50, 75, and 100% replacement with mineral supplements of diet) and VC levels (0 and 100 mg/kg of diet) were some of the studied variables. The results showed that different experimental diets had no significant effect on performance parameters (feed intake, feed conversion ratio, daily weight gain, egg weight, egg production, and egg mass) of laying hens. In the whole of experiment (50–62 weeks of age), dietary treatments had no influence on egg albumen %, Haugh unit, albumen index, yolk %, yolk index, yolk color, egg shell thickness, or egg shell ash. The results revealed that biochar, due to its availability and easy production, can replace mineral supplements in laying hens’ diet, with no adverse effects on productive performance and egg quality traits.
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