Influence of an organic acid blend and essential oil blend, individually or in combination, on growth performance, carcass parameters, apparent digestibility, intestinal microflora and intestinal morphology of broilers

This study evaluated the effect of an essential oil blend and its delivery routes on broiler chicken growth performance, blood biochemistry, intestinal morphology, and immune and antioxidant status. Eggs were incubated and allotted to 3 groups: non-injected group, in ovo saline group, and in ovo essential oil group. On d 18 of incubation, essential oil in saline or saline alone was injected into the amnion. At hatch, chicks were assigned to post-hatch treatment combinations (1) in ovo essential oil + in-water essential oil (in ovo + in-water EO); (2) in ovo essential oil (in ovo EO); (3) in ovo saline; (4) in-water essential oil; (5) in-feed antibiotics (Bacitracin methylene disalicylate) and (6) a negative control (NC; corn-wheat-soybean diet) in 8 replicate cages (6 birds/cage) and raised for 28 d. The in ovo EO group reduced (p < 0.05) chick length and hatchability, all groups recorded no difference in growth performance at 0–28 d. The in ovo + in-water EO treatment reduced (p < 0.05) blood creatine kinase and aspartate aminotransferase levels whilst increasing (p < 0.05) total antioxidant capacity in birds. The in ovo + in-water delivery of EO might represent a potential antibiotic reduction strategy for the poultry industry but more research is needed to address the concern of reduced hatchability.

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Dietary supplementation of plant essential oil improves growth performance, intestinal morphology and health in weaned pigs

Journal of Animal Physiology and Animal Nutrition ◽

10.1111/jpn.13271 ◽

2019 ◽

Vol 104 (2) ◽

pp. 579-589

Author(s):

Guoqi Su ◽

Xuanwu Zhou ◽

Yu Wang ◽

Daiwen Chen ◽

Guang Chen ◽

...

Keyword(s):

Essential Oil ◽

Growth Performance ◽

Dietary Supplementation ◽

Intestinal Morphology ◽

Weaned Pigs

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Effects of dietary seaweed extract supplementation in sows and post-weaned pigs on performance, intestinal morphology, intestinal microflora and immune status

British Journal Of Nutrition ◽

10.1017/s0007114511000997 ◽

2011 ◽

Vol 106 (5) ◽

pp. 688-699 ◽

Cited By ~ 33

Author(s):

S. G. Leonard ◽

T. Sweeney ◽

B. Bahar ◽

B. P. Lynch ◽

J. V. O'Doherty

Keyword(s):

Growth Performance ◽

Intestinal Microflora ◽

Immune Status ◽

Average Daily Gain ◽

Intestinal Morphology ◽

Seaweed Extract ◽

Gut Health ◽

Weaned Pigs ◽

Treatment Groups ◽

Daily Gain

The present study investigated the effects of dietary supplementation of a seaweed extract (SWE) to sows and weaned pigs on post-weaning growth performance, intestinal morphology, intestinal microflora, volatile fatty acid concentrations and immune status of pigs at days 11 and 117 post-weaning. Gestating sows (n20) were supplemented with a SWE (0v.10·0 g/d) from day 107 of gestation until weaning (day 26). At weaning, pigs (four pigs per sow) were divided into two groups based on sow diet during lactation and supplemented with a SWE (0v.2·8 g/kg diet), resulting in four treatment groups: (1) BB (basal sows–basal pigs); (2) BS (basal sows–treated pigs); (3) SB (treated sows–basal pigs); (4) SS (treated sows–treated pigs). Pigs weaned from SWE-supplemented sows had a higher average daily gain (ADG) between days 0 and 21 (P < 0·05) post-weaning compared with pigs weaned from non-SWE-supplemented sows. Pigs offered post-weaning diets (PW) containing SWE had decreased colonicEscherichia colipopulations on day 11 (P < 0·01) and decreased colonic Enterobacteriaceae numbers on day 117 (P < 0·05). Pigs offered PW containing SWE had a greater mRNA abundance ofMUC2in the colon at day 11 post-weaning (P < 0·05) compared with pigs offered unsupplemented diets. In conclusion, these results demonstrate that SWE supplementation post-weaning provides a dietary means to improve gut health and to enhance growth performance in starter pigs. Dietary SWE supplementation increased ADG during the grower–finisher (GF) phases. However, there was no growth response to SWE inclusion in GF diets when pigs were weaned from SWE-supplemented sows.

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PSIX-15 Effects of mixture of essential oils and organic acid supplementation on growth performance, blood profiles, leg bone length and intestinal morphology in broilers

Journal of Animal Science ◽

10.1093/jas/skz258.692 ◽

2019 ◽

Vol 97 (Supplement_3) ◽

pp. 347-348

Author(s):

Hanjin Oh ◽

Shudong Liu ◽

Won Yun ◽

Jihwan Lee ◽

Jiseon An ◽

...

Keyword(s):

Essential Oils ◽

Organic Acid ◽

Growth Performance ◽

Basal Diet ◽

Feed Additives ◽

Intestinal Morphology ◽

Acid Supplementation ◽

Bone Length ◽

Significant Difference ◽

Blood Profiles

Abstract This study was conducted to evaluate the effects of mixture of essential oils and organic acid supplementation on growth performance, blood profiles, leg bone length and intestinal morphology in ROSS broilers. A total of 40 Ross 308 broiler (1140 ±80g) were randomly allocated to 2 groups, basal diet (CON), basal diet+0.05% Avi-protect® (AVI), with 20 replicates every group, and 1 chicken per replicate per cage. The BW (P < 0.05) and weight gain (P < 0.05) of broilers were increased in the AVI group compared with the CON group. The content of triglyceride (P < 0.05) and LDL (P < 0.05) significantly decreased in the AVI group compared with the CON group. There was no significant difference on leg bone length between the AVI and the CON group (P > 0.05). the villi height (P < 0.05) and goblet cell count (P < 0.05) significantly increased in the AVI group compared with the CON group. In conclusion, the Avi-protect® as feed additives improved the growth performance and lipid metabolism and promoted the development of intestinal morphology in broilers.

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