Khatun Anguara, Chowdhury Sachchidananda Das, Roy Bibek Chandra, Dey Bapon, Haque Azimul, Chandran Bakthavachalam
Department of Poultry Science, Bangladesh Agricultural University, Mymensingh, Bangladesh.
Kemin Industries South Asia Pvt. Ltd., #C-3, 1st Street, Ambattur Industrial Estate, Chennai, India.
J Adv Vet Anim Res. 2019 Feb 3;6(1):66-73. doi: 10.5455/javar.2019.f313. eCollection 2019 Mar.
The experiment was conducted to investigate the comparative effects of inorganic trace minerals (ITM) and three forms of organic trace minerals (OTM) (propionate, metho-chelated, and proteinate) on growth performance, edible meat yield, immunity, and profitability of commercial broilers.
A corn-soya based mash diet comprising four treatments each of 10 replicates were fed to 720 day-old Cobb 500 broiler chicks for 35 days (starter diet 0-21 days and grower diet 22-35 days). The diets for comparison were as follows: diet 1: control diet with ITM premix at 1 kg/ton of feed (T); diet 2: control diet supplemented with propionate trace minerals at 600 gm/ton (T); diet 3: control diet supplemented with metho-chelated trace minerals at 500 gm/ton by reducing 225 gm methionine/ton of feed (T); and diet 4: control diet supplemented with proteinate trace minerals at 500 gm/ton of feed (T). Growth performance, carcass yield, and antibody titer (AT) data were recorded. Data were analyzed and interpreted using SAS Computer Package Program version 9.1.
Feeding propionate and proteinate OTM showed similar performance. Birds fed these two types (propionate and proteinate) or OTM had better performance in comparison with those receiving ITM and metho-chelated one. Proteinate group produced more wing meat and propionate group showed higher breast and drumstick meat yield as compared with those received the metho-chelated trace mineral and ITM. The birds belonging to OTM groups showed significantly higher AT level against infectious bursal disease. Proteinate minerals groups showed higher profitability followed by propionate fed broilers.
Two forms of OTM, propionate and proteinate improved performance of commercial broilers over those of ITM and metho-chelated one.
本试验旨在研究无机微量元素（ITM）和三种有机微量元素（OTM）（丙酸盐、蛋氨酸螯合物和蛋白盐）对商品肉鸡生长性能、可食用肉产量、免疫力和盈利能力的比较影响。
以玉米-大豆为基础的粉料日粮，包含四种处理，每种处理10个重复，饲喂720只1日龄的科宝500肉鸡35天（0 - 21天为育雏日粮，22 - 35天为生长日粮）。用于比较的日粮如下：日粮1：含1 kg/吨饲料的ITM预混料的对照日粮（T）；日粮2：添加600 g/吨丙酸盐微量元素的对照日粮（T）；日粮3：通过减少225 g/吨饲料的蛋氨酸，添加500 g/吨蛋氨酸螯合微量元素的对照日粮（T）；日粮4：添加500 g/吨饲料的蛋白盐微量元素的对照日粮（T）。记录生长性能、胴体产量和抗体效价（AT）数据。使用SAS计算机软件包程序9.1对数据进行分析和解释。
饲喂丙酸盐和蛋白盐OTM表现出相似的性能。与接受ITM和蛋氨酸螯合物的肉鸡相比，饲喂这两种类型（丙酸盐和蛋白盐）或OTM的肉鸡性能更好。与接受蛋氨酸螯合微量元素和ITM的肉鸡相比，蛋白盐组生产的翅肉更多，丙酸盐组的胸肉和腿肉产量更高。属于OTM组的肉鸡对传染性法氏囊病的AT水平显著更高。蛋白盐矿物质组的盈利能力更高，其次是饲喂丙酸盐的肉鸡。
两种形式的OTM，丙酸盐和蛋白盐比ITM和蛋氨酸螯合物能更好地提高商品肉鸡的性能。
