Effect of activated carbon on the nitrogen balance in broilers, soil and corn forage fertilized with the excreta of the broilers

Abstract

Abstract Objective: To assess the contribution and retention of nitrogen in broilers supplemented with activated carbon (AcCa), and in soils and corn forage fertilized with the excreta of chickens that consumed AcCa. Design/methodology/approach: Broilers housed individually received diets with four levels of AcCa: 0, 0.15, 0.30 and 0.45% and the nitrogen balance was determined using the total excreta collection. A sample of 200 g of excreta were taken and mixed with 2 kg of soil (S+E) in plastic trays and watered every 15 days; On days 1 and 60, samples were taken to perform the nitrogen balance. The S+E mixtures were added to 17 kg of potted agricultural soil to produce corn forage for 100 days, and forage yield and composition were recorded. The results were subjected to ANOVA and linear regression. Findings/conclusions: In broilers, the nitrogen retention showed a quadratic response (P<0.05); in the S+E mixtures, the percentage (P<0.01) and final nitrogen content (P<0.05) had quadratic responses, and in forage, the percentage of nitrogen showed a cubic response (P<0.05) with respect to the increased addition of CaAc in the diet of broilers. The AcCa can be used to improve the efficiency of nitrogen use in broilers and for the recycling of nitrogen through the integration of excreta in agricultural soils and its extraction in corn forage.Objective: To evaluate the contribution and nitrogen retention in broilers supplementedwith activated carbon (CaAc), as well and in soils and corn forage fertilized with the excretaof chickens that consumed CaAc.Design / methodology / approach: Chickens individually housed received diets with fourlevels of CaAc: 0, 0.15, 0.30 and 0.45% and their nitrogen balance was determined usingthe total collection of excreta. 200 g of the chicken excreta were taken and mixed with 2 kgof soil (S + E) in plastic trays and watered every 15 d. On day 1 and 60, samples weretaken to perform the nitrogen balance assessment. The S + E mixtures were added to 17kg of agricultural soil in pots to produce corn forage for 100 d, their yield and compositionwere recorded. The results were analyzed with an ANOVA and linear regression.Findings / conclusion: In chickens, nitrogen retention showed a quadratic response (P<0.05); In the S + E mixtures, the percentage (P <0.01) and final nitrogen content (P <0.05) had also quadratic responses, and in the forage, the nitrogen percentage showed a cubicresponse (P <0.05) respect to the increases in the addition of CaAc in the chicken´s diet. CaAc can be used to improve the nitrogen efficiency in chickens and for nitrogen recycling through the integration of excreta in agricultural soils and its extraction in corn forage

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Revista Agro Productividad

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Last time updated on 27/04/2021

This paper was published in Revista Agro Productividad.

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