Response of layer chicks to the dietary inclusion of allicin-rich extract

被引:11
作者
Adjei-Mensah, B. [1 ]
Oke, E. O. [2 ]
Ali, M. M. [1 ]
Hamidu, J. A. [3 ]
Tona, K. [1 ]
机构
[1] Univ Lome, Reg Ctr Excellence Poultry Sci, BSP 1515, Lome, Togo
[2] Fed Univ Agr, Dept Anim Physiol, Abeokuta, Nigeria
[3] Kwame Nkrumah Univ Sci & Technol, Dept Anim Sci, UP 244, Kumasi, Ghana
关键词
nutraceutical; feed additive; allicin-rich extract; immunity; inflammation; FERMENTED GARLIC POWDER; GROWTH-PERFORMANCE; NUTRIENT DIGESTIBILITY; ESSENTIAL OILS; MEAT QUALITY; SUPPLEMENTATION; PLANTS; METABOLISM; NUTRITION; LIVER;
D O I
10.1016/j.japr.2022.100291
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Nutraceuticals of natural origin (for example, garlic) have proven to enhance the immunity, health and performance of birds just as the synthetic types (antibiotics). However, health -related concerns about the use of synthetic feed additives call for more studies to be conducted on the use of phytogenics, which are natural growth promoters obtained from plants. Thus, a 5-wk feeding trial was carried out to assess the response of layer chicks to the dietary inclusion of allicin-rich extract. Six hundred 21-day-old Bovans Brown layer chicks were allocated to 6 treatments with 5 replicates (20 chicks each) using a completely randomized design (CRD). The treatments consisted of negative control (T0), positive control (T1) was supplemented with antibiotics, whereas the experimental groups T2 was supplemented with garlic powder (0.50 g/kg), and T3, T4, and T5 were supplemented with an allicin-rich extract from garlic in the proportion of 0.10, 0.30, and 0.50 mL/kg in the diet, respectively. The results showed that feed intake was increased (P <= 0.001) at the highest level of inclusion (0.50 mL/kg) during wk 8. Lymphocyte percent of the blood was superior (P = 0.042) in all the groups compared to the negative control. Mean corpuscular volume was significantly (P = 0.025) lower in T2 compared to the control groups. The total protein concentration of the serum was statistically (P = 0.015) higher in the allicin-rich extract groups compared to the positive control. Histo-pathological examination revealed that liver toxicity increased as the levels of allicin-rich extract increased. It can be concluded that allicin-rich extract supplementation improved the immunity of chicks by inhibiting microbial infections and inflammations.
引用
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页数:12
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