Basit Muhammad Abdul, Arifah Abdul Kadir, Loh Teck Chwen, Saleha Abdul Aziz, Salleh Annas, Kaka Ubedullah, Idris Sherifat Banke
Department of Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
Department of Biosciences, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan, Pakistan.
Saudi J Biol Sci. 2020 Jun;27(6):1503-1513. doi: 10.1016/j.sjbs.2020.04.017. Epub 2020 Apr 18.
Due to antimicrobial resistance and the public health hazard of antibiotic growth promoters, there is a grave need to find potential alternatives for sustainable poultry production. (PB) and (PO) are herbs, which have been reported for antimicrobial, antioxidant, and anti-inflammatory properties. The present study aimed to estimate the influence of different dose supplementation of leaf meal (PBLM) and leaf meal (POLM) on growth performance, ileal digestibility and gut morphology of broilers chickens. A total of 210 one day-old broiler chicks were randomly grouped into 7 treatments, and each treatment group has 3 replicates (n = 10) with a total number of 30 chicks. The treatments included T control (basal diet (BD) with no supplementation), T (BD + 2 g/kg PBLM); T (BD + 4 g/kg PBLM), T (BD + 8 g/kg PBLM), T (BD + 2 g/kg POLM), T (BD + 4 g/kg POLM), T (BD + 8 g/kg POLM). Growth performance, gut morphology and ileal digestibility were measured. Except for T (8 g/kg PBLM), graded dose inclusion of PBLM and POLM increased (P < 0.05) the body weight gain (BWG), positively modulated the gut architecture and enhanced nutrient digestibility in both stater and finisher growth phases of broiler chickens. Birds fed on PBLM 4 g/kg (T), and POLM 8 g/kg (T) had significantly higher (P < 0.05) BWG with superior (P < 0.05) feed efficiency in the overall growth period. Chickens fed on diets T and T had longer (P < 0.05) villi for duodenum as well as for jejunum. Furthermore, the birds fed on supplementations T and T showed improved (P < 0.05) digestibility of ether extract (EE), and dry matter (DM) compared to the control group. However, least (P < 0.05) crude protein (CP) digestibility was recorded for T In conclusion, dietary supplementations of PBLM 4 g/kg and POLM 8 g/kg were positively modulated the intestinal microarchitecture with enhanced nutrient digestibility, resulted in maximum body weight gain, thus improved the growth performance of broiler chickens.
由于抗菌药物耐药性以及抗生素生长促进剂对公共卫生的危害，迫切需要寻找可持续家禽生产的潜在替代物。（PB）和（PO）是已报道具有抗菌、抗氧化和抗炎特性的草药。本研究旨在评估不同剂量添加的PB叶粉（PBLM）和PO叶粉（POLM）对肉鸡生长性能、回肠消化率和肠道形态的影响。总共210只1日龄肉鸡雏鸡被随机分为7个处理组，每个处理组有3个重复（n = 10），共30只雏鸡。处理包括T对照组（不添加的基础日粮（BD））、T（BD + 2 g/kg PBLM）；T（BD + 4 g/kg PBLM），T（BD + 8 g/kg PBLM），T（BD + 2 g/kg POLM），T（BD + 4 g/kg POLM），T（BD + 8 g/kg POLM）。测定了生长性能、肠道形态和回肠消化率。除T（8 g/kg PBLM）外，分级添加PBLM和POLM增加了（P < 0.05）肉鸡育雏期和育肥期的体重增加（BWG），对肠道结构有正向调节作用，并提高了营养物质消化率。饲喂4 g/kg PBLM（T）和8 g/kg POLM（T）的鸡在整个生长周期中体重增加显著更高（P < 0.05），饲料效率更高（P < 0.05）。饲喂T和T日粮的鸡十二指肠和空肠的绒毛更长（P < 0.05）。此外，与对照组相比，饲喂T和T添加物的鸡的乙醚提取物（EE）和干物质（DM）消化率有所提高（P < 0.05）。然而，T组的粗蛋白（CP）消化率最低（P < 0.05）。总之，日粮添加4 g/kg PBLM和8 g/kg POLM对肠道微观结构有正向调节作用，提高了营养物质消化率，导致最大体重增加，从而改善了肉鸡的生长性能。
