The Energy Value for Broiler Chickens of Heat-Treated and Untreated Amaranth Grain, with and without Enzyme Addition

Hossein Janmohammadi, Babak Hosseintabar-Ghasemabad, Saeid Amirdahri, Ivan Fedorovich Gorlov, Karpenko Ekaterina Vladimirovna, Marina Ivanovna Slozhenkina, Rana Muhammad Bilal, Alireza Seidavi () and Clive Julian Christie Phillips ()
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Hossein Janmohammadi: Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran
Babak Hosseintabar-Ghasemabad: Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran
Saeid Amirdahri: Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz 5166616471, Iran
Ivan Fedorovich Gorlov: Volga Region Research Institute of Manufacture and Processing of Meat-and-Milk Production, 400131 Volgograd, Russia
Karpenko Ekaterina Vladimirovna: Volga Region Research Institute of Manufacture and Processing of Meat-and-Milk Production, 400131 Volgograd, Russia
Marina Ivanovna Slozhenkina: Volga Region Research Institute of Manufacture and Processing of Meat-and-Milk Production, 400131 Volgograd, Russia
Rana Muhammad Bilal: Department of Animal Nutrition, Faculty of Veterinary and Animal Sciences, The Islamia University, Bahawalpur 62300, Pakistan
Alireza Seidavi: Department of Animal Science, Rasht Branch, Islamic Azad University, Rasht 41335-3516, Iran
Clive Julian Christie Phillips: Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, 51014 Tartu, Estonia

Agriculture, 2022, vol. 12, issue 11, 1-12

Abstract: Amaranth is a pseudocereal which can thrive in conditions of drought and limited inputs. Samples of amaranth grain were subjected to proximate analysis with standard laboratory methods. We conducted two experiments to determine apparent (corrected to zero nitrogen balance) metabolisable energy (AME n ) content of untreated (UAG) and heat-treated (HTAG) amaranth grain for Ross-308 male broiler chicks (35–42 d and BW 2141 ± 10.41 g). In each experiment, 10 assay diets (ADs) were fed to 400 birds in individual metabolism cages in a 2 × 5 factorial design. ADs were obtained by substituting amaranth for the main ingredients in the reference diet (RD). Two levels of enzyme addition (0 and 0.55 g/kg) and five amaranth replacement rates (0, 150, 300, 450 and 600 g/kg) were used, and metabolism trials were conducted using the total excreta collection method. Two regression equations were estimated for UAG, with and without enzyme addition, that determined the AME n content of UAG as 3264 and 3255 kcal/kg, respectively. For HTAG, the AMEn contents with and without enzyme addition were 3973 and 3828 kcal/kg, respectively. Thus, enzyme addition improved the energy value of UAG and HTAG by 0.28 and 3.8%, respectively. The AME n value of HTAG was 708 and 573 kcal/kg higher than UAG in diets with and without enzyme addition, respectively. Thus, we conclude that there was more benefit from heat treatment than enzyme addition, but there was a synergistic effect of heat treatment and enzyme inclusion on the metabolisable energy concentration of amaranth in the diets of broilers.

Keywords: amaranth grain; climate change; drought; metabolisable energy; enzyme supplements (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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