[Abdullah A., Dhaliwal K.K., Roslan N.F.F., Lee C.H., Kalaiselvam M., Radman H.M., Saad Q.H.M., Yusof K., Jaarin K. (2015). The effect of Cosmos caudatus (Ulam Raja) on detoxifying enzymes in extrahepatic organs in mice. J. App. Pharm. Sci., 5: 82–88.]Search in Google Scholar
[Abo-Alqassem Z.M., Ahmed S.A., Ahmed E.A., El-Iraqi K.G. (2018). Effect of different stocking densities as an environmental stressing factor on broiler behaviour and performance. Benha Vet. Med. J., 34: 51–65.]Search in Google Scholar
[Abudabos A.M., Samara E.M., Hussein E.O., Al-Ghadi A.Q.M. Al-Atiyat R.M. (2013). Impacts of stocking density on the performance and welfare of broiler chickens. Ital. J. Anim. Sci., 12: 66–71.]Search in Google Scholar
[Ahmed O.B., Mahmoud M., Mahmoud U., El-Bab M.F. (2016). Histomorphological changes associated with different doses of Chinese propolis in the bursa Fabricius of chickens. J. Adv. Vet. Res., 6: 1–6.]Search in Google Scholar
[Akbarian A., Michiels J., Degroote J., Majdeddin M., Golian A., De Smet S. (2016). Association between heat stress and oxidative stress in poultry; mitochondrial dysfunction and dietary interventions with phytochemicals. J. Anim. Sci. Biotechnol., 7: 37.]Search in Google Scholar
[Astaneh I.Y., Chamani M., Mousavi S.N., Sadeghi A.A., Afshar M.A. (2018). Effect of stocking density on performance and immunity in Ross 308 broiler chickens. Kafkas Univ. Vet. Fak. Derg., 24: 483–489.]Search in Google Scholar
[Cheng S.H., Barakatun-Nisak M.Y., Anthony J. (2015). Potential medicinal benefits of Cosmos caudatus (Ulam Raja): A scoping review. J. Res. Med. Sci., 20: 1000–1006.]Search in Google Scholar
[Gholami M., Chamani M., Seidavi A., Sadeghi A.A., Aminafschar M. (2020). Effect of stocking density and climate region on performance, immunity, carcass characteristics, blood constitutes, and economical parameters of broiler chickens. Braz. J. Anim. Sci., 49: 1–16.]Search in Google Scholar
[Hosseini-Vashan S.J., Golian A., Yaghobfar A. (2015). Growth, immune, antioxidant, and bone responses of heat stress-exposed broilers fed diets supplemented with tomato pomace. Int. J. Biometeorol., 60: 1183–1192.]Search in Google Scholar
[Houshmand M., Azhar K., Zulkifli I., Bejo M.H., Kamyab A. (2012). Effect of prebiotic, protein level and stocking density on performance, immunity, and stress indicators of broiler. Poultry Sci., 91: 393–401.]Search in Google Scholar
[Iskender H., Yenice G., Dokumacioglu E., Kaynar O., Hayirli A., Kaya A. (2016). The effects of dietary flavonoid supplementation on the antioxidant status of laying hens. Rev. Bras. Cienc Avic, 18: 663–668.]Search in Google Scholar
[Isroli I., Yudiarti T., Widiastuti E., Sugiharto S. (2017). Probiotic Bacillus plus vitamins and minerals enhanced haemoglobin values and relative weight of ileum and improved feed conversion ratio of broilers during brooding period. Livest. Res. Rural Dev., 29: 11.]Search in Google Scholar
[Jeong S.B., Kim Y.B., Lee J.W., Kim D.H., Moon B.H., Chang H.H., Choi Y.H., Lee K.W. (2020). Role of dietary gamma-aminobutyric acid in broiler chickens raised under high stocking density. Anim. Nutr., 6: 293–304.]Search in Google Scholar
[Jeyakumari A. (2016). Microencapsulation of bioactive food ingredients and controlled release – a review. MOJ Food Process. Tech., 2: 1–9.]Search in Google Scholar
[Karimy M.F., Julendra H., Sofyan Damayanti P. (2013). Efektifitas ekstrak daun kenikir (Cosmos caudatus), daun mengkudu (Morinda citrifolia), dan tepung cacing tanah (Lumbricus rubellus) dalam sediaan granul larut air sebagai koksidiostat alami terhadap infeksi Eimeria tenella pada ayam broiler (in Indonesian). JITV, 18: 88–98.]Search in Google Scholar
[Kiernan J.A. (2015). Histological and histochemical methods. Butterworth/Heinemann, Oxford, 5th. ed.]Search in Google Scholar
[Kim D.W., Hong E.C., Kim J.H., Bang H.T., Choi J.Y., Ji S.Y., Lee W.S., Kim S.H. (2015). Effect of dietary quercetin on growth performance, blood chemical parameter, immunoglobulin and blood antioxidant activity in broiler chicks (in Korean). Korean J. Poult. Sci., 42: 33–40.]Search in Google Scholar
[Kristeen-Teo Y.W., Yeap S.K., Tan S.W., Omar A.R., Ideris A., Tan S.G., Alitheen N.B. (2017). The effects of different velogenic NDV infections on the chicken bursa of Fabricius. BMC Vet. Res., 13: 151.]Search in Google Scholar
[Li W., Wei F., Xu B., Sun Q., Deng W., Ma H., Bai J., Li S. (2019). Effect of stocking density and alpha-lipoic acid on the growth performance, physiological and oxidative stress and immune response of broilers. Asian-Australas. J. Anim. Sci., 32: 1914–1922.]Search in Google Scholar
[Liliswarianis N., Musa N.L.W., Zain M.Z.M.W., Kasim J., Karim S.A. (2011). Preliminary studies on phytochemical screening of ulam and fruit from Malaysia. E-J. Chem., 8: 285–288.]Search in Google Scholar
[Mayo M.A. (2002). Virus taxonomy-Houston. Arch Virol., 147: 1071–1076.]Search in Google Scholar
[Mishra M. (2016). Materials of natural origin for encapsulation, In: Handbook of encapsulation and controlled release, Mishra M. (Ed.). USA, CRC Press Taylor & Francis Group, pp 493.]Search in Google Scholar
[Mosleh N., Shomali T., Nematollahi F., Ghahramani Z., Khafi M.S.A., Namazi F. (2018). Effect of different periods of chronic heat stress with or without vitamin C supplementation on bone and selected serum parameters of broiler chickens. Avian Pathol., 47: 197–205.]Search in Google Scholar
[Nwaigwe C.U., Ihedioha J.I., Shoyinka S.V., Nwaigwe C.O. (2020). Evaluation of the hematological and clinical biochemical markers of stress in broiler chickens. Vet. World, 13: 2–8.]Search in Google Scholar
[Oke O.E., Oso A., Iyasere O.S., Odebowale T., Akanji T., Odusami O., Udehi S., Daramola J.O. (2020). Growth performance and physiological responses of helmeted guinea fowl (Numida meleagris) to different stocking densities in humid tropical environment. Agri. Trop. Subtrop., 53: 5–12.]Search in Google Scholar
[Palizdar M.H., Pourelmi M.R., Tabrizi H.R., Seperh Z. (2016). The impact of acidifier in the diet of broiler chickens grown in high stocking densities on growth performance, immune system, and blood metabolites. J. Anim. Prod., 18: 95–106.]Search in Google Scholar
[Palizdar M.H., Daylami M.K., Poulermi M.R. (2017). Effects of high stocking density on growth performance, blood metabolites and immune response of broilers (ROSS 308). Livest. Sci., 8: 196–200.]Search in Google Scholar
[Pang S.F., Yusoff M.M., Gimbun J. (2014). Extraction and microencapsulation of polyphenol from Orthosiphon stamineus leaves. J. Mech. Eng. Sci., 7: 1033–1041.]Search in Google Scholar
[Park B.S., Um K.H., Park S.O., Zammit V.A. (2018). Growth performance physiological responses of helmeted guinea fowl (Numida meleagris) to different stocking densities in humid tropical environment. Arch. Anim. Breed, 61: 425–432.]Search in Google Scholar
[Qaid M., Albatshan H., Shafey H., Abudabos A.M. (2016). Effect of stocking density on the performance and immunity of 1–14 d old broiler chicks. Braz. J. Poult. Sci., 18: 1–10.]Search in Google Scholar
[Reddy D.M., Reddy G.V., Mandal P.K. (2018). Application of natural antioxidants in meat and meat products – a review. Food Nutr. J., 3: 173.]Search in Google Scholar
[Reihani S.F.S., Azhar M.E. (2012). Antioxidant activity and total phenolic content in aqueous extracts of selected traditional Malay salads (ulam). Int. J. Food. Res., 19: 1439–1444.]Search in Google Scholar
[Salami S.A., Majoka M.A., Saha S., Garber A., Gabarrou J.F. (2015). Efficacy of dietary antioxidants on broiler oxidative stress, performance and meat quality: science and market. Avian Biol. Res., 8: 65–78.]Search in Google Scholar
[Saleh I., Trisnaningsih U., Dwirayani D., Syahadat R.M., Atmaja I.S.W. (2020). Analisis preferensi konsumen terhadap dua spesies kenikir; Cosmos caudatus dan Cosmos sulphureus (in Indonesian). Mahatani, 3: 196–204.]Search in Google Scholar
[Selvam R., Sarananakumar M., Suresh S., Sureshbabu G., Sasikumar M., Prashanth D. (2017). Effect of vitamin E supplementation and high stocking density on the performance and stress parameters of broilers. Rev. Bras. Cienc Avic., 19: 587–594.]Search in Google Scholar
[Simitzis P.E., Kalogeraki E., Goliomytis M., Charismiadou M.A., Trianaphyllopoulus K., Ayoutanti A. (2012). Impact of stocking density on broiler growth performance, meat characteristics, behavioural components and indicators of physiological and oxidative stress. Br. Poult. Sci., 53: 1–5.]Search in Google Scholar
[Sugiharto S., Turini Y., Isroli I., Widiastuti E., Wahyuni H.I., Sartono T.A. (2019). Fermented feed as a potential source of natural antioxidants for broiler chickens – a mini review. Agric. Conspec. Sci., 84: 313–318.]Search in Google Scholar
[Taghvaei M., Jafari S.M. (2015). Application and stability of natural antioxidants in edible oils in order to substitute synthetic additives. J. Food Sci. Technol., 52: 1272–1282.]Search in Google Scholar
[Tóthová C., Sesztakova E., Bielik B., Nagy O. (2019). Changes of total protein and protein fractions in broiler chickens during the fattening period. Vet. World, 12: 598–604.]Search in Google Scholar
[Trucillo P., Campardelli R., Aliakbarian B., Perego P., Reverchon E. (2018). Supercritical assisted process for the encapsulation of olive pomace extract into liposomes. J. Supercrit. Fluids, 135: 152–159.]Search in Google Scholar
[USDA [United States Department of Agriculture] (2020). Livestock and poultry: World markets and trade. Global Market Analysis, Foreign Agricultural Service.]Search in Google Scholar
[Vongsak B., Sithisarn P., Gritsanapan W. (2012). HPLC quantitative analysis of three major antioxidant components of Moringa oleifera leaf extracts. Planta Med., 78: 1252.]Search in Google Scholar
[Wang M., Yu B., He J., Yu J., Luo Y.-H., Luo J.-Q., Mao X.-B., Chen D.-W. (2020). The toxicological effect of dietary excess of saccharicterpenin, the extract of camellia seed meal, in piglets. J. Integr. Agr., 10: 211–224.]Search in Google Scholar
[Yanai T., Abo-Samaha M.I., El-Kazaz S.E., Tohamy H.G. (2018). Effect of stocking density on productive performance, behaviour, and histopathology of the lymphoid organs in broiler chickens. Europ. Poult. Sci., 82: 1–15.]Search in Google Scholar
[Zhou Y., Mao S., Zhou M. (2019). Effect of the flavonoid baicalein as a feed additive on the growth performance, immunity, and antioxidant capacity of broiler chickens. Poultry Sci., 98: 2790–2799.]Search in Google Scholar