Changes in performance, egg quality and blood parameters of laying hens fed selenium and oregano oil
H. Reshadi A , M. Torki
A C and H. Mohammadi B
+ Author Affiliations
- Author Affiliations
A Department of Animal Science, College of Agriculture and Natural Resources, Razi University, Imam Avenue, PO Box 6715685423, Kermanshah, Iran.
B Department of Agriculture, Payame Noor University, Tehran, Iran.
C Corresponding author. Email: torki@razi.ac.ir
Animal Production Science 60(13) 1620-1629 https://doi.org/10.1071/AN19319
Submitted: 24 June 2019 Accepted: 24 February 2020 Published: 12 May 2020
Abstract
Context: Organic and herbal additives in feed may lead to more healthy animal products. For this study, we hypothesised that an organic form of selenium and/or a herbal additive (oregano, Origanum vulgare L.) may improve performance of laying hens.
Aims: The study was designed to determine the effects of selenium source (SS, sodium selenite; or selenium yeast, SY), oregano essential oil (OEO) and a combination of Se and OEO on performance, egg quality and blood parameters of laying hens.
Methods: In total, 216 Lohmann LSL-Lite laying hens, 66 weeks of age, were assigned to feed on one of six diets: control group, receiving basal diet (BD); BD + 0.3 mg SS/kg; BD + 0.3 mg SY/kg; BD + 250 mg OEO/kg; BD + 250 mg OEO + 0.3 mg SS/kg; BD + 250 mg OEO + 0.3 mg SY/kg. For each treatment, there were six replicates of six hens each for 12 weeks.
Key results: Feed conversion ratio was higher (P < 0.05) with the OEO diet than in the control. The SY diet decreased egg production and the OEO diet decreased egg mass (P < 0.05), although this effect was reversed with the SY + OEO diet. This would illustrate a synergistic effect of OEO with SY. Highest and lowest yolk colour values were found with the SY and SS diets, respectively (P < 0.05). Serum uric acid was lower with diets containing Se than the control diet (P < 0.05). Glutathione peroxidase activity was highest with SY and SY + OEO diets and lowest with the OEO diet (P < 0.05). Birds fed the SS + OEO diet showed the highest total antioxidant capacity and those fed SY showed the lowest total antioxidant capacity (P < 0.05).
Conclusions: Based on the results of the current study, it can be concluded that SY diet have increasing effect on egg weight in laying hens. In addition, novel synergistic effects between OEO and SY diets on improving egg production, egg mass and feed conversion ratio have been found. In terms of oxidative status, the detected synergistic effects between OEO and SS diets on total antioxidant capacity and between OEO and SY diets on glutathione peroxidase (GPx) have not been reported before, that appreciate more clarifying investigations in future. Although, dietary supplemental SY individually and also with OEO increased GPx, adding SS to diet together with OEO showed more improving effect on GPx compared to the separate usage.
Implications: Dietary supplemental SY can improve egg weight in laying hens. In addition, adding SY to diet of laying hens individually and with OEO have beneficial effects on oxidative status of bird in terms of GPs activity, which in turn can ameliorate the unfavourable impressions of probable environmentally oxidative stress on productive performance.
Additional keywords: albumin, cholesterol, egg traits, glucose, phytogenic, triglycerides, uric acid.
References
Alcicek A, Bozkurt M, Cabuk M (2003) The effect of an essential oil combination derived from selected herbs growing wild in Turkey on broiler performance. South African Journal of Animal Science 33, 89–94.| The effect of an essential oil combination derived from selected herbs growing wild in Turkey on broiler performance.Crossref | GoogleScholarGoogle Scholar |
Arpasova H, Mellen M, Kacaniova M, Hascik P, Petrovic V, Cobanova K, Leng L (2009) Effects of dietary supplementation of sodium selenite and selenized yeast on selected qualitative parameters of laying hens eggs. Slovak Journal of Animal Science 42, 27–33.
Arpasova H, Kacaniova M, Galik B, Mellen M (2013) The influence of oregano essential oil and pollen on egg albumen qualitative parameters and microbiological indicators of table eggs content. Lucrari Stiintifice. Zootehnie si Biotehnologii 46, 6–11.
Blois MS (1958) Antioxidant determination by the use of stable free radical. Nature 181, 1199–1200.
| Antioxidant determination by the use of stable free radical.Crossref | GoogleScholarGoogle Scholar |
Botsoglou NA, Florou-Paneri P, Christaki E, Fletouris DJ, Spais AB (2002) Effect of dietary oregano essential oil on performance of chickens and on iron-induced lipid oxidation of breast, thigh and abdominal fat tissues. British Poultry Science 43, 223–230.
| Effect of dietary oregano essential oil on performance of chickens and on iron-induced lipid oxidation of breast, thigh and abdominal fat tissues.Crossref | GoogleScholarGoogle Scholar | 12047086PubMed |
Botsoglou NA, Florou-Paneri P, Christaki E, Fletouris DJ, Spais AB (2003) Inhibition of lipid oxidation in long-term frozen stored chicken meat by dietary oregano essential oil and a-tocopheryl acetate supplementation. Food Research International 36, 207–213.
| Inhibition of lipid oxidation in long-term frozen stored chicken meat by dietary oregano essential oil and a-tocopheryl acetate supplementation.Crossref | GoogleScholarGoogle Scholar |
Botsoglou NA, Christaki E, Florou-Paneri P, Giannenas I, Papageorgiou G, Spais AB (2004) The effect of a mixture of herbal essential oils or α-tocopheryl acetate on performance parameters and oxidation of body lipid in broilers. South African Journal of Animal Science 34, 52–61.
| The effect of a mixture of herbal essential oils or α-tocopheryl acetate on performance parameters and oxidation of body lipid in broilers.Crossref | GoogleScholarGoogle Scholar |
Botsoglou N, Florou-Paneri P, Botsoglou E, Dotas V, Giannenas I, Koidis A, Mitrakos P (2005) The effect of feeding rosemary, oregano, saffron and a-tocopheryl acetate on hen performance and oxidative stability of eggs. South African Journal of Animal Science 35, 143–151.
Bozkurt M, Alcicek A, Cabuk M, Kucukyilmaz K, Catli AU (2009) Effect of an herbal essential oil mixture on growth, laying traits, and egg hatching characteristics of broiler breeders. Poultry Science 88, 2368–2374.
| Effect of an herbal essential oil mixture on growth, laying traits, and egg hatching characteristics of broiler breeders.Crossref | GoogleScholarGoogle Scholar | 19834088PubMed |
Breinholt V, Lauridsen ST, Dragsted LO (1999) Differential effects of dietary flavonoids on drug metabolizing and antioxidant enzymes in female rat. Xenobiotica 29, 1227–1240.
| Differential effects of dietary flavonoids on drug metabolizing and antioxidant enzymes in female rat.Crossref | GoogleScholarGoogle Scholar | 10647909PubMed |
Cabuk M, Bozkurt M, Alcicek A, Catli AU, Baser KHC (2006) Effect of a dietary essential oil mixture on performance of laying hens in the summer season. South African Journal of Animal Science 36, 215–221.
Cetingul IS, Bayram I, Yardimci M, Sahin EH, Sengor E, Akkaya AB, Uyarlar C (2009) Effects of oregano (Oregano onites) on performance, hatchability and egg quality parameters of laying quails (Coturnix coturnix japonica). Italian Journal of Animal Science 8, 467–477.
| Effects of oregano (Oregano onites) on performance, hatchability and egg quality parameters of laying quails (Coturnix coturnix japonica).Crossref | GoogleScholarGoogle Scholar |
Christaki E, Bonos E, Giannenas I, Florou-Paneri P (2012) Evaluation of oregano and α-tocopheryl acetate on laying Japanese quail diets. Journal of Basic and Applied Sciences 8, 238–242.
Costa ND, McDonald DE, Swan RA (1993) Age-related changes in plasma biochemical values of farmed emus (Dromaius novaehollandie). Australian Veterinary Journal 70, 341–344.
| Age-related changes in plasma biochemical values of farmed emus (Dromaius novaehollandie).Crossref | GoogleScholarGoogle Scholar | 8240173PubMed |
Cross DE, Acamovic T, Deans SG, Mcdevitt RM (2002) The effects of dietary inclusion of herbs and their volatile oils on the performance of growing chickens. British Poultry Science 43, 33–35.
| The effects of dietary inclusion of herbs and their volatile oils on the performance of growing chickens.Crossref | GoogleScholarGoogle Scholar |
Cross DE, Svoboda K, McDevitt RM, Acamovic T (2003) The performance of chickens fed diets with and without thyme oil and enzymes. British Poultry Science 44, 18–19.
| The performance of chickens fed diets with and without thyme oil and enzymes.Crossref | GoogleScholarGoogle Scholar |
Cross DE, McDevitt RM, Hillman K, Acamovic T (2007) The effect of herbs and their associated essential oils on performance, dietary digestibility and gut microflora in chickens from 7 to 28 days of age. British Poultry Science 48, 496–506.
| The effect of herbs and their associated essential oils on performance, dietary digestibility and gut microflora in chickens from 7 to 28 days of age.Crossref | GoogleScholarGoogle Scholar | 17701503PubMed |
Ding X, Yu Y, Su Z, Zhang K (2017) Effects of essential oils on performance, egg quality, nutrient digestibility and yolk fatty acid profile in laying hens. Animal Nutrition 3, 127–131.
| Effects of essential oils on performance, egg quality, nutrient digestibility and yolk fatty acid profile in laying hens.Crossref | GoogleScholarGoogle Scholar | 29767138PubMed |
Favier AE (1993) Nutritional and clinical factors affecting the bioavailability of trace elements in humans. Bioavailability 93, 202–211.
Florou-Paneri P, Nikolakakis I, Giannenas I, Koidis A, Botsoglou E, Dotas V, Mitsopoulos I (2005) Hen performance and egg quality as affected by dietary oregano essential oil and tocopheryl acetate supplementation. International Journal of Poultry Science 7, 449–454.
Florou-Paneri P, Dotas D, Mitsopoulos I, Dotas V, Botsoglou E, Nikolakakis I, Botsoglou N (2006) Effect of feeding rosemary and. ALPHA.-tocopheryl acetate on hen performance and egg quality. Journal of Poultry Science 43, 143–149.
| Effect of feeding rosemary and. ALPHA.-tocopheryl acetate on hen performance and egg quality.Crossref | GoogleScholarGoogle Scholar |
Foster LH, Sumar S (1997) Selenium in health and disease: a review. Critical Reviews in Food Science and Nutrition 37, 211–228.
| Selenium in health and disease: a review.Crossref | GoogleScholarGoogle Scholar | 9143818PubMed |
Friedman M, Henika PR, Mandrell RE (2002) Bactericidal activities of plant essential oils and some of their isolated constituents against Campylobacter jejuni, Escherichia coli, Listeria monocytogenes, and Salmonella enterica. Journal of Food Protection 65, 1545–1560.
| Bactericidal activities of plant essential oils and some of their isolated constituents against Campylobacter jejuni, Escherichia coli, Listeria monocytogenes, and Salmonella enterica.Crossref | GoogleScholarGoogle Scholar | 12380738PubMed |
Habibian M, Sadeghi G, Ghazi S, Moeini MM (2015) Selenium as a feed supplement for heat-stressed poultry: a review. Biological Trace Element Research 165, 183–193.
| Selenium as a feed supplement for heat-stressed poultry: a review.Crossref | GoogleScholarGoogle Scholar | 25721721PubMed |
Hagan EC, Hansen WH, Fitzhugh OG, Jenner PM, Jones WI, Taylor JM, Long EL, Nelson AA, Brouwer JB (1967) Food flavourings and compounds of related structure. II. Subacute and chronic toxicity. Food and Cosmetics Toxicology 5, 141–157.
| Food flavourings and compounds of related structure. II. Subacute and chronic toxicity.Crossref | GoogleScholarGoogle Scholar | 6068552PubMed |
Hernandez F, Madrid J, Garcia V, Orengo J, Megias MD (2004) Influence of two plant extracts on broilers performance, digestibility, and digestive organ size. Poultry Science 83, 169–174.
| Influence of two plant extracts on broilers performance, digestibility, and digestive organ size.Crossref | GoogleScholarGoogle Scholar | 14979566PubMed |
Hertrampf JW (2001) Alternative antibacterial performance promoters-new feed additive possibilities. Poultry International 40, 50–54.
Huff WE, Kubena LF, Harvey RB (1988) Progression of ochratoxicosis in broiler chickens. Poultry Science 67, 1139–1146.
| Progression of ochratoxicosis in broiler chickens.Crossref | GoogleScholarGoogle Scholar | 2905799PubMed |
Hullar I, Vucskits AV, Berta E, Andrasofszky E, Bersenyi A, Szabo J (2018) Effect of fulvic and humic acids on copper and zinc homeostasis in rats. Acta Veterinaria Hungarica 66, 40–51.
| Effect of fulvic and humic acids on copper and zinc homeostasis in rats.Crossref | GoogleScholarGoogle Scholar | 29580088PubMed |
Jiang ZY, Lin YC, Zhou GL, Luo LH, Jiang SQ, Chen F (2009) Effects of dietary selenomethionine supplementation on growth performance, meat quality and antioxidant property in yellow broilers. Journal of Agricultural and Food Chemistry 57, 9769–9772.
| Effects of dietary selenomethionine supplementation on growth performance, meat quality and antioxidant property in yellow broilers.Crossref | GoogleScholarGoogle Scholar |
Kirkpinar F, Unlu HB, Ozdemir G (2011) Effects of oregano and garlic essential oils on performance, carcase, organ and blood characteristics and intestinal microflora of broilers. Livestock Science 137, 219–225.
| Effects of oregano and garlic essential oils on performance, carcase, organ and blood characteristics and intestinal microflora of broilers.Crossref | GoogleScholarGoogle Scholar |
Lee KW, Everts H, Kappert HJ, Frehner M, Losa R, Beynen AC (2003) Effects of dietary essential oil components on growth performance, digestive enzymes and lipid metabolism in female broiler chickens. British Poultry Science 44, 450–457.
| Effects of dietary essential oil components on growth performance, digestive enzymes and lipid metabolism in female broiler chickens.Crossref | GoogleScholarGoogle Scholar | 12964629PubMed |
Leng Lj, Bobcek R, Kuricova S, Boldizarova K, Gresakova L, Sevickova Z, Revajova V, Levkutova M, Levkut M (2003) Comparative metabolic and immune response of chickens diets containing inorganic selenium and Sel-Plex TM organic selenium. In ‘Biotechnology in the feed industry’. (Eds TP Lyons, KA Jacques) pp. 131–145. (Nottingham University Press, Nottingham, UK)
Levander OA, Burk RF (1994) Selenium. In ‘Modern nutrition in health and disease’. (Eds ME Shils, JA Olson, M Shike) pp. 242–251. (Lea and Febiger: Philadelphia, PA, USA)
Lin YL, Cheng CY, Lin YP, Lau YW, Juan IM, Lin JK (1998) Hypolipidemic effect of green tea leaves through induction of antioxidant and phase II enzymes including superoxide dismutase, catalase, and glutathione S-transferase in rats. Journal of Agricultural and Food Chemistry 46, 1893–1899.
| Hypolipidemic effect of green tea leaves through induction of antioxidant and phase II enzymes including superoxide dismutase, catalase, and glutathione S-transferase in rats.Crossref | GoogleScholarGoogle Scholar |
Migliorini MJ, Boiago MM, Roza LF, Barreta M, Arno A, Robazza WS, Galvao AC, Galli GM, Machado G, Baldissera MD, Wagner R, Stefani LCM, Silva ASD (2019) Oregano essential oil (Origanum vulgare) to feed laying hens and its effects on animal health. Anais da Academia Brasileira de Ciências 91, e20170901
| Oregano essential oil (Origanum vulgare) to feed laying hens and its effects on animal health.Crossref | GoogleScholarGoogle Scholar | 30785496PubMed |
NRC (1994) ‘Nutrient requirements of domestic animals. Nutrient requirements of poultry.’ 9th rev. edn. (National Research Council, National Academy Press: Washington, DC)
Oussalah M, Caillet S, Saucier L, Lacroix M (2007) Inhibitory effects of selected plant essential oils on the growth of four pathogenic bacteria: E.coli O157:H7, Salmonella typhimurium, Staphylococcus aureus and Listeria monocytogenes. Food Control 18, 414–420.
| Inhibitory effects of selected plant essential oils on the growth of four pathogenic bacteria: E.coli O157:H7, Salmonella typhimurium, Staphylococcus aureus and Listeria monocytogenes.Crossref | GoogleScholarGoogle Scholar |
Ozek K, Wellmann KT, Ertekin B, Tarım B (2011) Effects of dietary herbal essential oil mixture and organic acid preparation on laying traits, gastrointestinal tract characteristics, blood parameters and immune response of laying hens in a hot summer season. Journal of Animal and Feed Sciences 20, 575–586.
| Effects of dietary herbal essential oil mixture and organic acid preparation on laying traits, gastrointestinal tract characteristics, blood parameters and immune response of laying hens in a hot summer season.Crossref | GoogleScholarGoogle Scholar |
Paglia DE, Valentine WN (1967) Studies on the quantitative and qualitative characterization of erythrocyte glutathione peroxidase. Journal of Laboratory and Clinical Medicine 70, 158–169.
Papageorgiou G, Botsoglou N, Govaris A, Giannenas I, Iliadis S, Botsoglou E (2003) Effect of dietary oregano oil and α-tocopheryl acetate supplementation on iron-induced lipid oxidation of turkey breast, thigh, liver and heart tissues. Journal of Animal Physiology and Animal Nutrition 87, 324–335.
| Effect of dietary oregano oil and α-tocopheryl acetate supplementation on iron-induced lipid oxidation of turkey breast, thigh, liver and heart tissues.Crossref | GoogleScholarGoogle Scholar | 14507415PubMed |
Park KW, Rhee AR, Um JS, Paik IK (2009) Effect of dietary available phosphorus and organic acids on the performance and egg quality of laying hens. Journal of Applied Poultry Research 18, 598–604.
| Effect of dietary available phosphorus and organic acids on the performance and egg quality of laying hens.Crossref | GoogleScholarGoogle Scholar |
Paton ND, Cantor AH, Pescatore AJ, Ford MJ (2000) Effect of dietary selenium source and storage on internal quality and shell strength of eggs. Poultry Science 70, 116.
Paton ND, Cantor AH, Pescatore AJ, Ford MJ, Smith CA (2002) The effect of dietary selenium source and level on the uptake of selenium by developing chick embryos. Poultry Science 81, 1548–1554.
| The effect of dietary selenium source and level on the uptake of selenium by developing chick embryos.Crossref | GoogleScholarGoogle Scholar | 12412922PubMed |
Pavlata L, Illek J, Pechova A (2001) Blood and tissue selenium concentrations in calves treated with inorganic or organic selenium compounds: a comparison. Acta Veterinaria Brunensis 70, 19–26.
| Blood and tissue selenium concentrations in calves treated with inorganic or organic selenium compounds: a comparison.Crossref | GoogleScholarGoogle Scholar |
Payne RL, Southern LL (2005) Comparison of inorganic and organic selenium sources for broilers. Poultry Science 84, 898–902.
| Comparison of inorganic and organic selenium sources for broilers.Crossref | GoogleScholarGoogle Scholar | 15971527PubMed |
Payne RL, Lavergne TK, Southern LL (2005) Effect of inorganic versus organic selenium on hen production and egg selenium concentration. Poultry Science 84, 232–237.
| Effect of inorganic versus organic selenium on hen production and egg selenium concentration.Crossref | GoogleScholarGoogle Scholar | 15742959PubMed |
Peric L, Milosevic N, Zikic D, Kanacki Z, Dzinic N, Nollet L, Spring P (2009) Effect of selenium sources on performance and meat characteristics of broiler chickens. Journal of Applied Poultry Research 18, 403–409.
| Effect of selenium sources on performance and meat characteristics of broiler chickens.Crossref | GoogleScholarGoogle Scholar |
Petrovic V, Boldizarova K, Faix S, Mellen M, Arpasova H, Leng L (2006) Antioxidant and selenium status of laying hens fed with diets supplemented with selenite or Se-yeast. Journal of Animal and Feed Sciences 15, 435–444.
| Antioxidant and selenium status of laying hens fed with diets supplemented with selenite or Se-yeast.Crossref | GoogleScholarGoogle Scholar |
Placha I, Takacova J, Ryzner M, Cobanova K, Laukova A, Strompfova V, Faix S (2014) Effect of thyme essential oil and selenium on intestine integrity and antioxidant status of broilers. British Poultry Science 55, 105–114.
| Effect of thyme essential oil and selenium on intestine integrity and antioxidant status of broilers.Crossref | GoogleScholarGoogle Scholar | 24397472PubMed |
Radwan Nadia L, Hassan RA, Qota EM, Fayek HM (2008) Effect of natural antioxidant on oxidative stability of eggs and productive and reproductive performance of laying hens. International Journal of Poultry Science 7, 134–150.
| Effect of natural antioxidant on oxidative stability of eggs and productive and reproductive performance of laying hens.Crossref | GoogleScholarGoogle Scholar |
Renema RA (2004) Reproductive responses to Sel-Plex organic selenium in male and female broiler breeders: impact on production traits and hatchability. In ‘Nutritional biotechnology in the feed and food industries. Proceedings 20th Alltech’s Annual Symposium’. pp. 81–91. (Nottingham University Press: Nottingham, UK)
Roofchaee A, Irani M, Ebrahimzadeh MA, Akbari MR (2011) Effect of dietary oregano (Origanum vulgare L.) essential oil on growth performance, cecal microflora and serum antioxidant activity of broiler chickens. African Journal of Biotechnology 10, 6177–6183.
Sahin N, Sahin K, Onderci M (2003) Vitamin E and selenium supplementation to alleviate cold-stress-associated deterioration in egg quality and egg yolk mineral concentrations of Japanese quails. Biological Trace Element Research 96, 179–190.
| Vitamin E and selenium supplementation to alleviate cold-stress-associated deterioration in egg quality and egg yolk mineral concentrations of Japanese quails.Crossref | GoogleScholarGoogle Scholar | 14716097PubMed |
Sayedpiran SA, Nobakht A, Khodaei S (2011) The effects of using of probiotic, organic acid and blends of some medicinal herbs on performance, egg quality, blood biochemical and immunity parameters of laying hens. Tabriz Veterinary Journal 5, 1111–1122.
Selvaraj P, Thangavel A, Nanjappan K (1998) Plasma biochemical profile of broiler chickens. The Indian Veterinary Journal 75, 1026–1027.
Skrivan M, Simane J, Dlouha G, Doucha J (2006) Effect of dietary sodium selenite, Se-enriched yeast and Se-enriched Chlorella on egg Se concentration, physical parameters of eggs and laying hen production. Czech Journal of Animal Science 51, 163–167.
| Effect of dietary sodium selenite, Se-enriched yeast and Se-enriched Chlorella on egg Se concentration, physical parameters of eggs and laying hen production.Crossref | GoogleScholarGoogle Scholar |
Surai PF (2000) Organic selenium: benefits to animals and humans, a biochemist’s view. In ‘Biotechnology in the feed industry’. (Eds TP Lyons, KA Jacques) pp. 205–260. (Nottingham University Press: Nottingham, UK)
Surai PF (2002) ‘Natural antioxidants in avian nutrition and reproduction.’ (Nottingham University Press: Nottingham, UK)
Toyoda H, Himeno S, Imura N (1990) Regulation of glutathione peroxidase mRNA level by dietary selenium manipulation. Biochimica et Biophysica Acta 1049, 213–215.
| Regulation of glutathione peroxidase mRNA level by dietary selenium manipulation.Crossref | GoogleScholarGoogle Scholar | 2364111PubMed |
Utterback PL, Parsons CM, Yoon I, Butler J (2005) Effect of supplementing selenium yeast in diets of laying hens on egg selenium content. Poultry Science 84, 1900–1901.
| Effect of supplementing selenium yeast in diets of laying hens on egg selenium content.Crossref | GoogleScholarGoogle Scholar | 16479947PubMed |
Wang YB, Xu BH (2008) Effect of different selenium source (sodium selenite and selenium yeast) on broiler chickens. Animal Feed Science and Technology 144, 306–314.
| Effect of different selenium source (sodium selenite and selenium yeast) on broiler chickens.Crossref | GoogleScholarGoogle Scholar |
Wang Y, Zhan X, Zhang X, Wu R, Yuan D (2011) Comparison of different forms of dietary selenium supplementation on growth performance, meat quality, selenium deposition, and antioxidant property in broilers. Biological Trace Element Research 143, 261–273.
| Comparison of different forms of dietary selenium supplementation on growth performance, meat quality, selenium deposition, and antioxidant property in broilers.Crossref | GoogleScholarGoogle Scholar | 20838922PubMed |
Windisch W, Schedle K, Plitzner C, Kroismayr A (2008) Use of phytogenic products as feed additives for swine and poultry. Journal of Animal Science 86, E140–E148.
| Use of phytogenic products as feed additives for swine and poultry.Crossref | GoogleScholarGoogle Scholar | 18073277PubMed |
Yang J, Huang K, Qin S, Wu X, Zhao Z, Chen F (2009) Antibacterial action of selenium-enriched probiotics against pathogenic Escherichia coli. Digestive Diseases and Sciences 54, 246–254.
| Antibacterial action of selenium-enriched probiotics against pathogenic Escherichia coli.Crossref | GoogleScholarGoogle Scholar | 18612820PubMed |
Yesilbag D, Colpan I (2006) Effects of organic acid supplemented diets on growth performance, egg production and quality and on serum parameters in laying hens. Revue de Medecine Veterinaire 157, 280–284.
Yesilbag D, Gezen SS, Biricik H, Meral Y (2013) Effects of dietary rosemary and oregano volatile oil mixture on quail performance, egg traits and egg oxidative stability. British Poultry Science 54, 231–237.
| Effects of dietary rosemary and oregano volatile oil mixture on quail performance, egg traits and egg oxidative stability.Crossref | GoogleScholarGoogle Scholar | 23647187PubMed |
Yevtushenko TI, Konovalenko IS, Deryvedmid LV (2017) Dry extract of the oregano as perspective raw material for correction of climacteric syndrome. Topical issues of new drugs development. In ‘Abstracts of XXIV International Scientific and Practical Conference of Young Scientists and Students’. Vol. 2, p. 73. (Kh.: Publishing Office NUPh: Kharkiv, Ukraine)
Yoon I, Werner TM, Butler JM (2007) Effect of source and concentration of selenium on growth performance and selenium retention in broiler chickens. Poultry Science 86, 727–730.
| Effect of source and concentration of selenium on growth performance and selenium retention in broiler chickens.Crossref | GoogleScholarGoogle Scholar | 17369545PubMed |
Youdim KA, Deans SG (2000) Effect of thyme oil and thymol dietary supplementation on the antioxidant status and fatty acid composition of the ageing rat brain. British Journal of Nutrition 83, 87–93.
| Effect of thyme oil and thymol dietary supplementation on the antioxidant status and fatty acid composition of the ageing rat brain.Crossref | GoogleScholarGoogle Scholar | 10703468PubMed |
Young JF, Dragsted LO, Daneshvar B, Lauridsen ST, Hansen M, Sandstroem B (2000) The effect of grape-skin extract on oxidative status. British Journal of Nutrition 84, 505–513.
| The effect of grape-skin extract on oxidative status.Crossref | GoogleScholarGoogle Scholar | 11103221PubMed |
Zuberbuehler CA, Messikommer RE, Arnold MM, Forrer RS, Wenk C (2006) Effects of selenium depletion and selenium repletion by choice feeding on selenium status of young and old laying hens. Physiology & Behavior 87, 430–440.
| Effects of selenium depletion and selenium repletion by choice feeding on selenium status of young and old laying hens.Crossref | GoogleScholarGoogle Scholar |
