Azizi Mohammad Naeem, Loh Teck Chwen, Foo Hooi Ling, Akit Henny, Izuddin Wan Ibrahim, Shazali Nurhazirah, Teik Chung Eric Lim, Samsudin Anjas Asmara
Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, UPM Serdang, Seri Kembangan 43400, Malaysia.
Department of Pre-Clinic, Faculty of Veterinary Science, Afghanistan National Agricultural Sciences and Technology University ANASTU, Kandahar 3801, Afghanistan.
Animals (Basel). 2021 Jul 20;11(7):2147. doi: 10.3390/ani11072147.
This study aimed to analyse the nutritional properties, apparent ileal digestibility (AID) and apparent metabolisable energy (AME) of broiler chickens fed with brown seaweed (BS) and green seaweed (GS). Proximate analysis was performed to determine the nutrient composition of seaweed. The amino acids were determined using high-performance liquid chromatography (HPLC), and atomic absorption spectroscopy was used to determine the minerals content. The gross energy (GE) was determined using a fully automatic bomb calorimeter, and the AME value was calculated. Titanium dioxide (TiO) was used as an indigestible marker to calculate the AID. A digestibility trial was conducted to investigate the effects of seaweeds on crude protein (CP), crude fibre (CF), ether extract (EE), dry matter (DM), organic matter (OM), amino acids (AA) and minerals digestibility, and AME on broiler chickens. Thirty-six broiler chickens were randomly distributed into two dietary treatment groups with six replicates and three birds per replicate. Results showed that brown and green seaweed was a source of macro and micronutrients. For the AME and AID of seaweed-based diets, the results showed that the AME value for BS and GS was 2894.13 and 2780.70 kcal/kg, respectively. The AID of BS and GS was 88.82% and 86.8% for EE, 82.03% and 80.6% for OM, 60.69% and 57.80% for CP, 48.56 and 44.02% for CF, and 17.97 and 19.40% for ash contents, respectively. Meanwhile, the AID of CP and CF was significantly higher for BS compared to the GS. Findings showed that the AID of various AA was 40.96 to 77.54%, and the AID of selected minerals (Ca, Na, K, Mg, Zn, Cu, Fe) for both BS and GS groups were above 90%.
本研究旨在分析饲喂褐藻（BS）和绿藻（GS）的肉鸡的营养特性、表观回肠消化率（AID）和表观代谢能（AME）。进行了近似分析以确定海藻的营养成分。使用高效液相色谱法（HPLC）测定氨基酸，并使用原子吸收光谱法测定矿物质含量。使用全自动弹式量热计测定总能（GE），并计算AME值。使用二氧化钛（TiO）作为不可消化标记物来计算AID。进行了一项消化率试验，以研究海藻对肉鸡粗蛋白（CP）、粗纤维（CF）、乙醚提取物（EE）、干物质（DM）、有机物（OM）、氨基酸（AA）和矿物质消化率以及AME的影响。36只肉鸡被随机分为两个日粮处理组，每组6个重复，每个重复3只鸡。结果表明，褐藻和绿藻是大量营养素和微量营养素的来源。对于以海藻为基础的日粮的AME和AID，结果表明，BS和GS的AME值分别为2894.13和2780.70千卡/千克。BS和GS的EE的AID分别为88.82%和86.8%，OM的AID分别为82.03%和80.6%，CP的AID分别为60.69%和57.80%，CF的AID分别为48.56和44.02%，灰分含量的AID分别为17.97和19.40%。同时，与GS相比，BS的CP和CF的AID显著更高。研究结果表明，各种AA的AID为40.96%至77.54%，BS和GS组所选矿物质（钙、钠、钾、镁、锌、铜、铁）的AID均高于90%。
