Effect of a microencapsulated complex of biofactors and antioxidants on the growth performance, plasma biochemistry, intestinal health, and immune and antioxidant status of broiler chickens challenged with cold stress

被引:0
作者
Oretomiloye, Fisayo [1 ]
Lahaye, Ludovic [2 ]
Adewole, Deborah [3 ]
机构
[1] Agr & Agrifood Canada, Lethbridge Res & Dev Ctr, Lethbridge, AB T1J 3B6, Canada
[2] JEFO Nutr Inc, St Hyacinthe, PQ J2R 2E7, Canada
[3] Univ Saskatchewan, Coll Agr & Bioresources, Dept Anim & Poultry Sci, Saskatoon, SK S7N 5A8, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
antioxidants; broiler chickens; cold stress; growth performance; gut health microencapsulation; ACID-BASE-BALANCE; ANTIBODY-RESPONSES; VITAMIN-E; SUPPLEMENTATION; MICROBIOTA; DIET; PARAMETERS; MANAGEMENT; CURCUMIN; INDEXES;
D O I
10.1139/cjas-2024-0091
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The study examined the effects of a microencapsulated complex of biofactors and antioxidants (P(BF + AOx)) on growth and health status of broiler chickens challenged with cold stress. Day-old broilers were allotted to four treatments in a 2 x 2 factorial design with two dietary treatments: (1) Control (CON; corn-wheat-soybean-based) and (2) CON + 0.015% P(BF + AOx), and two thermal treatments: (1) Thermoneutral (TN; 29 degrees C +/- 1 on days 8-10, 54 h) and (2) Cold stress (CS; 20 degrees C on days 8-10, 54 h). Treatments were allocated to six replicates, with eight chicks/replicate. Growth performance was measured weekly from days 0-21. On day 14, two birds/cage were euthanized. Cold stress reduced (P < 0.05) total antioxidant capacity (TAC), serum IgM, jejunal villus height (VH), villus width (VW), and VH:crypt depth (VH:CD). Irrespective of CS, P(BF + AOx) improved (P < 0.05) feed intake (631 vs. 592 g/bird), body weight (BW) (383 vs. 349 g/bird), BW gain (337 vs. 301 g/bird) up to day 14, and plasma TAC. Regardless of the challenge model, P(BF + AOx) increased (P < 0.05) duodenal VW, VH:CD, jejunal, and ileal VH:CD, and the relative abundance of cecal Intestinimonas and Colidextribacteria, compared to the CON. In conclusion, CS altered broiler blood parameters and gut morphology, but 0.015% P(BF + AOx) improved early life growth performance, TAC, and gut health, irrespective of CS, suggesting that it could be an effective strategy to support overall health and performance.
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页数:16
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