Single and combined effects of vitamin C and oregano essential oil in diet, on growth performance, and blood parameters of broiler chicks reared under heat stress condition

Abstract

This study was conducted to evaluate the effects of adding vitamin C (VC), oregano essential oil (OR), or their combination in diet, on growth performance, and blood parameters of broiler chicks reared under heat stress (HS) condition (38 °C). One-day-old 240 male broilers were randomly assigned to four treatment groups, six replicates of ten birds each. The birds were fed with either a basal diet or a basal diet supplemented with either 200 mg L-ascorbic acid/kg of diet, 250 mg of oregano essential oil/kg of diet, or 200 mg L-ascorbic acid plus 250 mg of oregano essential oil/kg of diet. Average daily feed intake (ADFI), average daily gain (ADG), and feed conversion ratio (FCR) were obtained for 42 days of age and at the end of the experiment (day 42); birds were bled to determine some blood parameters and weighted for final body weight (BW). Feeding birds with diets supplemented with oregano essential oil and vitamin C in a single or combined form increased ADG (P > 0.05). Also BW increased and feed efficiency decreased (P < 0.05) in the birds fed with diets including VC and OR (in a single or combined form), compared to those fed the basal diet. ADFI was not significantly influenced by dietary oregano essential oil and vitamin C (P > 0.05). Supplemental oregano essential oil and vitamin C in a combined form decreased the serum concentration of corticosterone, triglycerides, glucose, and MDA (P < 0.05) compared with other groups. An increase in the serum concentrations of vitamin C were seen in broiler chicks supplemented with vitamin C. From the results of the present experiment, it can be concluded that diet supplementation by combined oregano essential oil and vitamin C could have beneficial effects on some blood parameters of broiler chicks reared under heat stress condition.

Effects of two sources of Mexican oregano oil on performance, blood profile, carcass variables, and meat of broilers

“…The effects found in the current study with 0.4 g of MOO/kg of feed coincided with results from recent studies with plant extracts in diets on broiler performance and feed efficiency (Cho et al, 2014;Khattak et al, 2014;Park et al, 2014;Ghazi et al, 2015;Sun et al, 2015;Hashemipour et al, 2016;Peng et al, 2016;Chowdhury et al, 2018). Specifically, Reyer et al (2017) revealed improved growth performance in all groups fed the phytogenic additives [25.0 mg of an essential oil blend (star anise, rosemary, thyme, and oregano)/kg of feed, 46.0 mg of a Quillaja saponin blend/kg, or a combination of both preparations (essential oils + saponins)] compared with control broilers from 8 to 21 days; our results at 21 days with PLG and LBS+PLG in feed was not different from the control group.…”

“…A number of researchers have evaluated performance and meat quality of broilers given plant extracts (Akbarian et al, 2013;Sharifi et al, 2013;Cho et al, 2014;Park et al, 2014;Starčević et al, 2015) and OEO (Hong et al, 2012;Khattak et al, 2014;Kırkpınar et al, 2014;Küçükyılmaz et al, 2014;Ghazi et al, 2015;Silva-Vázquez et al, 2015;Sun et al, 2015;Ghazanfari et al, 2015;Hashemipour et al, 2016;Peng et al, 2016;Reyer et al 2017;Chowdhury et al, 2018), demonstrating their influence on feed intake, growth enhancement, blood parameters, and meat quality. Silva-Vazquez et al (2017) indicated that Greek (Origanum vulgare L. ssp.…”

Leverage of Synthetic Vitamins (C and E) on Antioxidant Activity in Broilers Challenged With E. Coli.

“…Although the birds were able to synthetize its own requirement of vitamin C, but during stress the requirements may exceed the synthetizing ability of the birds. Vitamin C supplementation in diets have many beneficial influences on blood parameters of broilers raised under heat stress (Ghazi et al, 2015). Vitamin C improved performance traits (body weight, body weight gain, feed conversion ratio, and performance index) and blood metabolites which in turn suppressed the negative effects of heat stress (Rafiee et al, 2016).…”

Effects of Dietary Pearlzyme on Growth Performance and Development of Digestive Organs in Broilers

“…또한 펄자임은 catalytic triad라는 특이구조를 갖고 있어 (Dodson and Wlodawer, 1998), 산(acid)의 환경에서 효소의 활성부위를 보호하며 점 진적으로 염기(base)환경에 이를 경우 최대 활성을 나타내 는 것으로 알려져 있다 (Joo et al, 2003 (Feddes et al, 2002;Ghazi et al, 2014 (Kim et al, 2007), xylanase (Engberg et al, 2004;Kalmendal and Tauson, 2012), 그리고 serine protease (Kalmendal and Tauson, 2012)를 각각 또는 3가지의 효소복합제(fungal xylanase, protease, 90 bacterial α-amylase) (Gracia et al, 2003)를 첨가하였을 때 육계의 사료섭취량에 영향을 주지 않았다. Xylanase (Engberg et al, 2004) 또는 3 가지 효소복합제 (Gracia et al, 2003)는 육계의 증체량을 증 가시켰지만, Kalmendal and Tauson(2012)이 발표한 논문에 서는 xylanase와 serine protease는 체중을 증가시키는데 효 과가 없었다.…”