The effect of humic acid on zinc accumulation in chicken broiler tissues

• Published in: Czech Journal of Animal Science Vol. 54; no. 3; pp. 121 - 127
• Main Authors: Herzig, I.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Fakulta Veterinarni Hygieny a Ekologie, Navratilova, M.,Vyzkumny Ustav Veterinarniho Lekarstvi, Brno (Czech Republic), Totusek, J.,Masarykova Univ., Brno (Czech Republic). Ustav Preventivniho Lekarstvi, Suchy, P.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Farmaceuticka Fakulta, Vecerek, V.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Fakulta Veterinarni Hygieny a Ekologie, Blahova, J.,Veterinarni a Farmaceuticka Univ., Brno (Czech Republic). Fakulta Veterinarni Hygieny a Ekologie, Zraly, Z.,Vyzkumny Ustav Veterinarniho Lekarstvi, Brno (Czech Republic)
• Format: Journal Article
• Language: English
• Published: Czech Academy of Agricultural Sciences 01.03.2009
• Subjects: ACIDE HUMIQUE; ACIDO HUMICO; ADDITIF AUX ALIMENTS DES ANIMAUX; ADITIVOS DE PIENSOS; ALIMENTACION DE LOS ANIMALES; ALIMENTATION DES ANIMAUX; ANIMAL FEEDING; ANIMAL NUTRITION; biochemical profile; BLOOD; BODY WEIGHT; BROILER CHICKENS; COMPLEMENT ALIMENTAIRE; FEED ADDITIVES; FOIE; GAIN DE POIDS; GANANCIA DE PESO; HIGADO; http://www.fao.org/aos/agrovoc#c_15846; http://www.fao.org/aos/agrovoc#c_27925; http://www.fao.org/aos/agrovoc#c_2827; http://www.fao.org/aos/agrovoc#c_33996; http://www.fao.org/aos/agrovoc#c_3685; http://www.fao.org/aos/agrovoc#c_4099; http://www.fao.org/aos/agrovoc#c_429; http://www.fao.org/aos/agrovoc#c_4395; http://www.fao.org/aos/agrovoc#c_5003; http://www.fao.org/aos/agrovoc#c_8350; http://www.fao.org/aos/agrovoc#c_8519; http://www.fao.org/aos/agrovoc#c_9435; http://www.fao.org/aos/agrovoc#c_959; HUMIC ACIDS; kidney; KIDNEYS; leg muscle; LIVER; MUSCLE; MUSCLES; MUSCULOS; NUTRICION ANIMAL; NUTRITION ANIMALE; PESO CORPORAL; POIDS CORPOREL; POLLO DE ENGORDE; POULET DE CHAIR; REIN; RINONES; SANG; SANGRE; SULFATE DE ZINC; SULFATO DE CINC; SUPLEMENTOS; SUPPLEMENTS; WEIGHT GAIN; ZINC SULPHATE
• ISSN: 1212-1819; 1805-9309
• DOI: 10.17221/1676-CJAS

Thirty-six selected male chickens were allocated into four groups (C, HA, ZN, ZN + HA) and the experiment was initiated after 4 days of an adaptation period. Group C was fed a complete feed mixture without supplements. Group HA was fed the same diet with 500 mg of humic acid per chicken and day. Group ZN was loaded with 240 mg Zn (as 600 mg ZnSO4) per chicken and day, and birds of the group ZN + HA were loaded as those of the latter group, with additional 500 mg of humic acid per chicken and day. The treatments were carried out for 10 days. Subsequently, the chickens were slaughtered and samples of liver, kidneys, leg muscles and blood were collected for Zn level assessment. Increased Zn levels (non-significantly) by 11 to 30% compared to group C were found in the tissues of HA animals. Significantly increased Zn levels in kidneys, liver and blood serum were found in ZN chickens. No significant changes of Zn levels were reported in ZN + HA animals.