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Selected issues in the anatomy and physiology of the avian organ of vision and eye disorders in farmed poultry

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Jun 11, 2025

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Addison E.M., Anderson R.C.: A review of the eye worms of the genus Oxyspirura (Nematoda: Spiruroidea). J Wildl Dis 1969, 55, 1–58. Addison E.M. Anderson R.C. : A review of the eye worms of the genus Oxyspirura (Nematoda: Spiruroidea) . J Wildl Dis 1969 , 55 , 1 58 . Search in Google Scholar

Akan M., Haziroğlu R., Ilhan Z., Sareyyüpoğlu B., Tunca R.: A case of aspergillosis in a broiler breeder flock. Avian Dis 2002, 46, 497–501, doi: 10.1637/0005-2086(2002)046[0497:ACOAIA]2.0.CO;2. Akan M. Haziroğlu R. Ilhan Z. Sareyyüpoğlu B. Tunca R. : A case of aspergillosis in a broiler breeder flock . Avian Dis 2002 , 46 , 497 501 , 10.1637/0005-2086(2002)046[0497:ACOAIA]2.0.CO;2 . Open DOISearch in Google Scholar

Bagust T.J., Jones R.C., Guy J.S.: Avian infectious laryngotracheitis. Rev Sci Tech 2000, 19, 483–492, doi: 10.20506/rst.19.2.1229. Bagust T.J. Jones R.C. Guy J.S. : Avian infectious laryngotracheitis . Rev Sci Tech 2000 , 19 , 483 492 , 10.20506/rst.19.2.1229 . Open DOISearch in Google Scholar

Barr C., Murphy C.J., Ghazikhanian G.Y., Bellhorn R.W.: Cataracts and optic nerve hypoplasia in turkey poults. Avian Dis 1988, 32, 469–477. Barr C. Murphy C.J. Ghazikhanian G.Y. Bellhorn R.W. : Cataracts and optic nerve hypoplasia in turkey poults . Avian Dis 1988 , 32 , 469 477 . Search in Google Scholar

Baumel J.J.: Handbook of avian anatomy: nomina anatomica avium, Second Edition. Nuttal Ornithological Club, Cambridge, MA, 1993. Baumel J.J. : Handbook of avian anatomy: nomina anatomica avium , Second Edition. Nuttal Ornithological Club , Cambridge, MA , 1993 . Search in Google Scholar

Bellhorn R.W.: Retinal nutritive systems. Semin Avian Exotic Pet Med 1997, 6, 108–118, doi: 10.1016/S1055-937X(97)80018-7. Bellhorn R.W. : Retinal nutritive systems . Semin Avian Exotic Pet Med 1997 , 6 , 108 118 , 10.1016/S1055-937X(97)80018-7 . Open DOISearch in Google Scholar

Bellhorn R.W., Bellhorn M.S.: The avian pecten. I. Fluorescenin permeability. Ophthalmic Res 1975, 7, 1–7, doi: 10.1159/000264728. Bellhorn R.W. Bellhorn M.S. : The avian pecten . I. Fluorescenin permeability. Ophthalmic Res 1975 , 7 , 1 7 , 10.1159/000264728 . Open DOISearch in Google Scholar

Bennett A.T.D., Cuthill I.C.: Ultraviolet vision in birds: what is its function? Vision Res 1994, 34, 1471–1478, doi: 10.1016/0042-6989(94)90149-x. Bennett A.T.D. Cuthill I.C. : Ultraviolet vision in birds: what is its function? Vision Res 1994 , 34 , 1471 1478 , 10.1016/0042-6989(94)90149-x . Open DOISearch in Google Scholar

Bickford A.A., Saunders J.R.: Experimental toxoplasmosis in chickens. Am J Vet Res 1966, 27, 308–318. Bickford A.A. Saunders J.R. : Experimental toxoplasmosis in chickens . Am J Vet Res 1966 , 27 , 308 318 . Search in Google Scholar

Bradley F.A., Bickford A.A., Walker R.L.: Diagnosis of favus (avian dermatophytosis) in oriental breed chickens. Avian Dis 1993, 37, 1147–1150. Bradley F.A. Bickford A.A. Walker R.L. : Diagnosis of favus (avian dermatophytosis) in oriental breed chickens . Avian Dis 1993 , 37 , 1147 1150 . Search in Google Scholar

Brown C.C., Sullivan L., Dufour‐Zavala L., Kulkarni A., Willams S., Susta L., Zhang J., Sellers H.: Comparing presence of avian paramyxovirus‐1 through immunohistochemistry in tracheas of experimentally and naturally infected chickens. Avian Dis 2013, 57, 36–40, doi: 10.1637/10299-070312-Reg.1. Brown C.C. Sullivan L. Dufour‐Zavala L. Kulkarni A. Willams S. Susta L. Zhang J. Sellers H. : Comparing presence of avian paramyxovirus‐1 through immunohistochemistry in tracheas of experimentally and naturally infected chickens . Avian Dis 2013 , 57 , 36 40 , 10.1637/10299-070312-Reg.1 . Open DOISearch in Google Scholar

Buys S.B., du Preez J.H., Els H.J.: A preliminary report on the isolation of a virus causing sinusitis in turkeys in South Africa and attempts to attenuate the virus. Turkeys 1980, 6, 36–46. Buys S.B. du Preez J.H. Els H.J. : A preliminary report on the isolation of a virus causing sinusitis in turkeys in South Africa and attempts to attenuate the virus . Turkeys 1980 , 6 , 36 46 . Search in Google Scholar

Buys S.B., du Preez J.H., Els H.J.: Swollen head syndrome in chickens: a preliminary report on the isolation of a possible aetiological agent. J South African Vet Assoc 1989, 60, 221–222. Buys S.B. du Preez J.H. Els H.J. : Swollen head syndrome in chickens: a preliminary report on the isolation of a possible aetiological agent . J South African Vet Assoc 1989 , 60 , 221 222 . Search in Google Scholar

Capua I., Marangon S.: The avian influenza epidemic in Italy, 1999–2000: a review. Avian Pathol 2000, 29, 289–294, doi: 10.1080/03079450050118403. Capua I. Marangon S. : The avian influenza epidemic in Italy, 1999–2000: a review . Avian Pathol 2000 , 29 , 289 294 , 10.1080/03079450050118403 . Open DOISearch in Google Scholar

Cheville N.F., Tappe J., Ackermann M., Jensen A.: Acute fibrinopurulent blepharitis and conjunctivitis associated with Staphylococcus hyicus, Escherichia coli, and Streptococcus sp. in chickens and turkeys. Vet Pathol 1988, 25, 369–375, doi: 10.1177/030098588802500506. Cheville N.F. Tappe J. Ackermann M. Jensen A. : Acute fibrinopurulent blepharitis and conjunctivitis associated with Staphylococcus hyicus, Escherichia coli, and Streptococcus sp . in chickens and turkeys. Vet Pathol 1988 , 25 , 369 375 , 10.1177/030098588802500506 . Open DOISearch in Google Scholar

Chikuba T., Uehara H., Fumikura S., Takahashi K., Suzuki Y.,Hoshinoo K., Yamamoto Y.: Riemerella anatipestifer infection in domestic ducks in Japan, 2014. J Vet Med Sci 2016, 78, 1635–1638, doi: 10.1292/jvms.16-0278. Chikuba T. Uehara H. Fumikura S. Takahashi K. Suzuki Y. Hoshinoo K. Yamamoto Y. : Riemerella anatipestifer infection in domestic ducks in Japan, 2014 . J Vet Med Sci 2016 , 78 , 1635 1638 , 10.1292/jvms.16-0278 . Open DOISearch in Google Scholar

Crispin S.M., Barnett K.C.: Ocular candidiasis in ornamental ducks. Avian Pathol 1978, 7, 49–59, doi: 10.1080/03079457808418259. Crispin S.M. Barnett K.C. : Ocular candidiasis in ornamental ducks . Avian Pathol 1978 , 7 , 49 59 , 10.1080/03079457808418259 . Open DOISearch in Google Scholar

Cummings T.S., French J.D., Fletcher O.J.: Ophthalmopathy in a broiler breeder flock reared in dark-out housing. Avian Dis 1986, 3, 609–611. Cummings T.S. French J.D. Fletcher O.J. : Ophthalmopathy in a broiler breeder flock reared in dark-out housing . Avian Dis 1986 , 3 , 609 611 . Search in Google Scholar

Davis G.S., Siopes T.D., Peiffer R.L., Cook C.: Morphologic changes induced by photoperiod in eyes of turkey poults. Am J Vet Res 1986, 47, 953–955. Davis G.S. Siopes T.D. Peiffer R.L. Cook C. : Morphologic changes induced by photoperiod in eyes of turkey poults . Am J Vet Res 1986 , 47 , 953 955 . Search in Google Scholar

Dayan M.O., Ozaydin T.: A Comparative Morphometrical Study of the Pecten Oculi in Different Avian Species. Sci World J 2013, 1–5, doi: 10.1155/2013/968652. Dayan M.O. Ozaydin T. : A Comparative Morphometrical Study of the Pecten Oculi in Different Avian Species . Sci World J 2013 , 1 5 , 10.1155/2013/968652 . Open DOISearch in Google Scholar

Deaton J.W., Reece F.N., Thornberry F.D.: Atmospheric ammonia and incidence of blood spots in eggs. Poult Sci 1986, 65, 1427–1428, doi: 10.3382/ps.0651427. Deaton J.W. Reece F.N. Thornberry F.D. : Atmospheric ammonia and incidence of blood spots in eggs . Poult Sci 1986 , 65 , 1427 1428 , 10.3382/ps.0651427 . Open DOISearch in Google Scholar

Dhondt A.A., Tessaglia D.L., Slothower R.L.: Epidemic mycoplasmal conjunctivitis in house finches from eastern North America. J Wildl Dis 1998, 34, 265–280, doi: 10.7589/0090-3558-34.2.265. Dhondt A.A. Tessaglia D.L. Slothower R.L. : Epidemic mycoplasmal conjunctivitis in house finches from eastern North America . J Wildl Dis 1998 , 34 , 265 280 , 10.7589/0090-3558-34.2.265 . Open DOISearch in Google Scholar

Dyar P.M., Fletcher O.J., Page R.K.: Aspergillosis in turkeys associated with use of contaminated litter. Avian Dis 1984, 28, 250–255. Dyar P.M. Fletcher O.J. Page R.K. : Aspergillosis in turkeys associated with use of contaminated litter . Avian Dis 1984 , 28 , 250 255 . Search in Google Scholar

Ehrlich D., Stuchbery J., Zappia J.: Morphology of congenital microphthalmia in chicks (Gallus gallus). J Morphol 1989, 199, 1–13, doi: 10.1002/jmor.1051990102. Ehrlich D. Stuchbery J. Zappia J. : Morphology of congenital microphthalmia in chicks (Gallus gallus) . J Morphol 1989 , 199 , 1 13 , 10.1002/jmor.1051990102 . Open DOISearch in Google Scholar

Farmer H., Chalmers W.S.K., Woolcock P.R.: Chlamydia psittaci isolated from the eyes of domestic ducks (Anas platyrhynchos) with conjunctivitis and rhinitis. Vet Rec 1982, 110, 59, doi: 10.1136/vr.110.3.59. Farmer H. Chalmers W.S.K. Woolcock P.R. : Chlamydia psittaci isolated from the eyes of domestic ducks (Anas platyrhynchos) with conjunctivitis and rhinitis . Vet Rec 1982 , 110 , 59 , 10.1136/vr.110.3.59 . Open DOISearch in Google Scholar

Ficken M.D, Nasisse M.P., Boggan G.D., Guy J.S., Wages D.P., Witter R.L., Rosenberger J.K., Nordgren R.M.: Marek’s disease virus isolates with unusual tropism and virulence for ocular tissues: Clinical findings, challenge studies and pathological features. Avian Pathol 1991, 20, 461–474, doi: 10.1080/03079459108418784. Ficken M.D Nasisse M.P. Boggan G.D. Guy J.S. Wages D.P. Witter R.L. Rosenberger J.K. Nordgren R.M. : Marek’s disease virus isolates with unusual tropism and virulence for ocular tissues: Clinical findings, challenge studies and pathological features . Avian Pathol 1991 , 20 , 461 474 , 10.1080/03079459108418784 . Open DOISearch in Google Scholar

French N.A.: Effect of incubation temperature on the gross pathology of turkey embryos. Br Poult Sci 1994, 35, 363–371, doi: 10.1080/00071669408417701. French N.A. : Effect of incubation temperature on the gross pathology of turkey embryos . Br Poult Sci 1994 , 35 , 363 371 , 10.1080/00071669408417701 . Open DOISearch in Google Scholar

Halpin F.B.: Opacity of the Lens in Fowl Associated with Exposure to the Virus of Infectious Avian Encephalomyelitis: A Case Report. Avian Dis 1967, 11, 146–148, doi: 10.2307/1588107. Halpin F.B. : Opacity of the Lens in Fowl Associated with Exposure to the Virus of Infectious Avian Encephalomyelitis: A Case Report . Avian Dis 1967 , 11 , 146 148 , 10.2307/1588107 . Open DOISearch in Google Scholar

Hart N.S., Partridge J.C., Cuthill I.C.: Visual pigments, cone oil droplets, ocular media and predicted spectral sensitivity in the domestic turkey (Meleagris gallopavo). Vision Res 1999, 39, 3321–3328, doi: 10.1016/s0042-6989(99)00071-1. Hart N.S. Partridge J.C. Cuthill I.C. : Visual pigments, cone oil droplets, ocular media and predicted spectral sensitivity in the domestic turkey (Meleagris gallopavo) . Vision Res 1999 , 39 , 3321 3328 , 10.1016/s0042-6989(99)00071-1 . Open DOISearch in Google Scholar

Holthules H., Engel L., Spessert R., Vollrath L.: Circadian gene expression patterns of melanopsin and pinopsin in the chick pineal gland. Biochem Biophys Res Commun 2005, 326, 160–165, doi: 10.1016/j.bbrc.2004.11.022. Holthules H. Engel L. Spessert R. Vollrath L. : Circadian gene expression patterns of melanopsin and pinopsin in the chick pineal gland . Biochem Biophys Res Commun 2005 , 326 , 160 165 , 10.1016/j.bbrc.2004.11.022 . Open DOISearch in Google Scholar

Jackwood M.W., de Wit S.: Section II: Viral Diseases; Chapter 4: Infectious Bronchitis. In: Diseases of poultry, Volume 1, 14th Edition, edited by D.E. Swayne, M. Boulianne, C.M. Logue, L.R. McDougald, V.L. Nair, D.L. Suarez, S. de Wit, T. Grimes, D. Johnson, M. Kromm, T.Y. Prajitno, I. Rubinoff, G. Zavala, Wiley-Blackwell, Hoboken, NJ, USA, 2020, pp. 167–188. Jackwood M.W. de Wit S. : Section II: Viral Diseases; Chapter 4: Infectious Bronchitis . In: Diseases of poultry , Volume 1 , 14 th Edition, edited by Swayne D.E. Boulianne M. Logue C.M. McDougald L.R. Nair V.L. Suarez D.L. de Wit S. Grimes T. Johnson D. Kromm M. Prajitno T.Y. Rubinoff I. Zavala G. , Wiley-Blackwell , Hoboken, NJ, USA , 2020 , pp. 167 188 . Search in Google Scholar

Keymer I.F.: Cataracts in birds. Avian Pathol 1977, 6, 335–341, doi: 10.1080/03079457708418243. Keymer I.F. : Cataracts in birds . Avian Pathol 1977 , 6 , 335 341 , 10.1080/03079457708418243 . Open DOISearch in Google Scholar

Klasing K.C.: Section VI: Noninfectious Diseases; Chapter 29: Nutritional diseases. In: Diseases of Poultry, Volume 1, 13th Edition, edited by D.E. Swayne, J.R. Glisson, L.R. McDougald, L.K. Nolan, D.L. Suarez, V.L. Nair, John Wiley & Sons, Ames, IA, USA, 2013, pp. 1203–1232, doi: 10.1002/9781119421481.ch13. Klasing K.C. : Section VI: Noninfectious Diseases; Chapter 29: Nutritional diseases . In: Diseases of Poultry , Volume 1 , 13 th Edition, edited by Swayne D.E. Glisson J.R. McDougald L.R. Nolan L.K. Suarez D.L. Nair V.L. , John Wiley & Sons , Ames, IA, USA , 2013 , pp. 1203 1232 , 10.1002/9781119421481.ch13 . Open DOISearch in Google Scholar

Koncicki A., Szubstarska A.: Rola Pseudomonas aeruginosa w patologii drobiu (The role of Pseudomonas aeruginosa in avian pathology – in Polish). Med Weter 1988, 44, 474–477. Koncicki A. Szubstarska A. : Rola Pseudomonas aeruginosa w patologii drobiu (The role of Pseudomonas aeruginosa in avian pathology – in Polish) . Med Weter 1988 , 44 , 474 477 . Search in Google Scholar

Li J., Bi D., Pan S., Zhang Y., Zhou D.: Effects of high dietary vitamin A supplementation on tibial dyschondroplasia, skin pigmentation and growth performance in avian broilers. Res Vet Sci 2008, 84, 409–412, doi: 10.1016/j.rvsc.2007.11.008. Li J. Bi D. Pan S. Zhang Y. Zhou D. : Effects of high dietary vitamin A supplementation on tibial dyschondroplasia, skin pigmentation and growth performance in avian broilers . Res Vet Sci 2008 , 84 , 409 412 , 10.1016/j.rvsc.2007.11.008 . Open DOISearch in Google Scholar

Lindsay D.S., Blagburn B.L., Hoerr F.J., Giambrone J.J.: Experimental Cryptosporidium baileyi infections in chickens and turkeys produced by ocular inoculation of oocysts. Avian Dis 1987, 31, 355–357. Lindsay D.S. Blagburn B.L. Hoerr F.J. Giambrone J.J. : Experimental Cryptosporidium baileyi infections in chickens and turkeys produced by ocular inoculation of oocysts . Avian Dis 1987 , 31 , 355 357 . Search in Google Scholar

Liu S.G., Gan M.H., Zhao Z.M.: Studies on Klebsiella infection in chickens. I. Diagnosis and control of ophthalmia caused by Klebsiella. Chinese J Vet Med 1988, 14, 7–9. Liu S.G. Gan M.H. Zhao Z.M. : Studies on Klebsiella infection in chickens . I. Diagnosis and control of ophthalmia caused by Klebsiella. Chinese J Vet Med 1988 , 14 , 7 9 . Search in Google Scholar

Minbay, A., Kreier J.P.: An experimental study of the pathogenesis of fowl pox infection in chickens. Avian Dis 1973, 17, 532–539. Minbay A. Kreier J.P. : An experimental study of the pathogenesis of fowl pox infection in chickens . Avian Dis 1973 , 17 , 532 539 . Search in Google Scholar

Nakamura K., Mase M., Tanimura N., Yamaguchi S., Nakazawa M., Yuasa N.: Swollen head syndrome in broiler chickens in Japan: its pathology, microbiology and biochemistry. Avian Pathol 1997, 26, 139–154, doi: 10.1080/03079459708419201. Nakamura K. Mase M. Tanimura N. Yamaguchi S. Nakazawa M. Yuasa N. : Swollen head syndrome in broiler chickens in Japan: its pathology, microbiology and biochemistry . Avian Pathol 1997 , 26 , 139 154 , 10.1080/03079459708419201 . Open DOISearch in Google Scholar

Nunoya, T., Yagihashi T., Tajima M., Nagasawa Y.: Occurrence of keratoconjunctivitis apparently caused by Mycoplasma gallisepticum in layer chickens. Vet Pathol 1995, 32, 11–18, doi: 10.1177/030098589503200102. Nunoya T. Yagihashi T. Tajima M. Nagasawa Y. : Occurrence of keratoconjunctivitis apparently caused by Mycoplasma gallisepticum in layer chickens . Vet Pathol 1995 , 32 , 11 18 , 10.1177/030098589503200102 . Open DOISearch in Google Scholar

Obaidia N. I., Hanson R.P.: Effect of Newcastle disease virus on ocular and paraocular tissues in experimentally inoculated chickens. Avian Dis 1989, 33, 285–290. Obaidia N. I. Hanson R.P. : Effect of Newcastle disease virus on ocular and paraocular tissues in experimentally inoculated chickens . Avian Dis 1989 , 33 , 285 290 . Search in Google Scholar

Okano T., Takanaka Y., Nakamura A., Hirunagi K., Adachi A., Ebihara S., Fukada Y.: Immunocytochemical identification of pinopsin in pineal glands of chicken and pigeon. Brain Res Mol Brain Res 1997, 50, 190–196, doi: 10.1016/s0169-328x(97)00184-8. Okano T. Takanaka Y. Nakamura A. Hirunagi K. Adachi A. Ebihara S. Fukada Y. : Immunocytochemical identification of pinopsin in pineal glands of chicken and pigeon . Brain Res Mol Brain Res 1997 , 50 , 190 196 , 10.1016/s0169-328x(97)00184-8 . Open DOISearch in Google Scholar

Olson L.D.: Ophthalmia in turkeys infected with Pasteurella multocida. Avian Dis 1981, 25, 423–430. Olson L.D. : Ophthalmia in turkeys infected with Pasteurella multocida . Avian Dis 1981 , 25 , 423 430 . Search in Google Scholar

Pandiri A.K, Cortes A.L., Lee L.F., Gimeno I.M.: Marek’s disease virus infection in the eye: chronological study of the lesions, virus replication, and vaccine‐induced protection. Avian Dis 2008, 52, 572–580, doi: 10.1637/8284-031308-Reg.1. Pandiri A.K. Cortes A.L. Lee L.F. Gimeno I.M. : Marek’s disease virus infection in the eye: chronological study of the lesions, virus replication, and vaccine‐induced protection . Avian Dis 2008 , 52 , 572 580 , 10.1637/8284-031308-Reg.1 . Open DOISearch in Google Scholar

Panigrahy B., Grumbles L.C., Terry R.J., Millar D.L., Hall C.F.: Bacterial coryza in turkeys in Texas. Poult Sci 1981, 60, 107–113, doi: 10.3382/ps.0600107. Panigrahy B. Grumbles L.C. Terry R.J. Millar D.L. Hall C.F. : Bacterial coryza in turkeys in Texas . Poult Sci 1981 , 60 , 107 113 , 10.3382/ps.0600107 . Open DOISearch in Google Scholar

Prusik M., Lewczuk B.: Budowa szyszynki ptaków (Structure of the avian pineal gland – in Polish). Med Weter 2006, 64, 764–769. Prusik M. Lewczuk B. : Budowa szyszynki ptaków (Structure of the avian pineal gland – in Polish) . Med Weter 2006 , 64 , 764 769 . Search in Google Scholar

Ramer J.C., Paul-Murphy J., Brunson D., Murphy C.J.: Effects of mydriatic agents in cockatoos, African gray parrots, and blue-fronted Amazon parrots. J Am Vet Med Assoc 1996, 208, 227–230. Ramer J.C. Paul-Murphy J. Brunson D. Murphy C.J. : Effects of mydriatic agents in cockatoos, African gray parrots, and blue-fronted Amazon parrots . J Am Vet Med Assoc 1996 , 208 , 227 230 . Search in Google Scholar

Richard J., Thurston J., Peden W., Pinello C.: Recent studies on aspergillosis in turkey poults. Mycopathologia 1984, 87, 3–11, doi: 10.1007/BF00436615. Richard J. Thurston J. Peden W. Pinello C. : Recent studies on aspergillosis in turkey poults . Mycopathologia 1984 , 87 , 3 11 , 10.1007/BF00436615 . Open DOISearch in Google Scholar

Rymer J., Choh V., Bharadwaj S., Pamanabhan V., Modilevsky L., Jovanovich E., Yeh B., Zhang Z., Guan H., Payne W., Wildsoet C.F.: The albino chick as a model for studying ocular development anomalies, including refractive errors, associated with albinism. Exp Eye Res 2007, 85, 431–432, doi: 10.1016/j.exer.2007.06.010. Rymer J. Choh V. Bharadwaj S. Pamanabhan V. Modilevsky L. Jovanovich E. Yeh B. Zhang Z. Guan H. Payne W. Wildsoet C.F. : The albino chick as a model for studying ocular development anomalies, including refractive errors, associated with albinism . Exp Eye Res 2007 , 85 , 431 432 , 10.1016/j.exer.2007.06.010 . Open DOISearch in Google Scholar

Schat K.A., van Santen V.L.: Section II: Viral Diseases; Chapter 8: Chicken Infections Anemia and Circovirus Infections in Commercial Flocks. In: Diseases of Poultry, Volume 1, 14th Edition, edited by D.E. Swayne, M. Boulianne, C.M. Logue, L.R. McDougald, V.L. Nair, D.L. Suarez, S. de Wit, T. Grimes, D. Johnson, M. Kromm, T.Y. Prajitno, I. Rubinoff, G. Zavala, Wiley-Blackwell, Hoboken, NJ, USA, 2020, pp. 248–320. Schat K.A. van Santen V.L. : Section II: Viral Diseases; Chapter 8: Chicken Infections Anemia and Circovirus Infections in Commercial Flocks . In: Diseases of Poultry , Volume 1 , 14 th Edition, edited by Swayne D.E. Boulianne M. Logue C.M. McDougald L.R. Nair V.L. Suarez D.L. de Wit S. Grimes T. Johnson D. Kromm M. Prajitno T.Y. Rubinoff I. Zavala G. , Wiley-Blackwell , Hoboken, NJ, USA , 2020 , pp. 248 320 . Search in Google Scholar

Schmitt F., Schade B., Böhm B., Shimoji Y., Pfahler C.: Erysipelas in a free‐range layer flock with conjunctival oedema as an unusual clinical sign. Berl Munch Tierarztl Wochenschr 2014, 127, 183–187. Schmitt F. Schade B. Böhm B. Shimoji Y. Pfahler C. : Erysipelas in a free‐range layer flock with conjunctival oedema as an unusual clinical sign . Berl Munch Tierarztl Wochenschr 2014 , 127 , 183 187 . Search in Google Scholar

Sellers H.S., Garcia M., Glisson J.R., Brown T.P., Sander J.S., Guy J.S.: Mild infectious laryngotracheitis in broilers in the southeast. Avian Dis 2004, 48, 430–436, doi: 10.1637/7129. Sellers H.S. Garcia M. Glisson J.R. Brown T.P. Sander J.S. Guy J.S. : Mild infectious laryngotracheitis in broilers in the southeast . Avian Dis 2004 , 48 , 430 436 , 10.1637/7129 . Open DOISearch in Google Scholar

Shawky S., Sandhu T., Shivaprasad H.L.: Pathogenicity of a low-virulence duck virus enteritis isolate with apparent immunosuppressive ability. Avian Dis 2000, 44, 590–599. Shawky S. Sandhu T. Shivaprasad H.L. : Pathogenicity of a low-virulence duck virus enteritis isolate with apparent immunosuppressive ability . Avian Dis 2000 , 44 , 590 599 . Search in Google Scholar

Shimizu T., Patton T.B., Husband S.A.: Avian Visual Behavior and the Organization of the Telencephelon. Brain Behav Evol 2010, 75, 204–218, doi: 10.1159/000314283. Shimizu T. Patton T.B. Husband S.A. : Avian Visual Behavior and the Organization of the Telencephelon . Brain Behav Evol 2010 , 75 , 204 218 , 10.1159/000314283 . Open DOISearch in Google Scholar

Shivaprasad H.L.: Poultry ophthalmology. In: Veterinary Ophthalmology, Third Edition, edited by K.N. Gelatt, Baltimore: Lippincott, Pennsylvania, Williams & Wilkins 1999, pp. 1177–1207. Shivaprasad H.L. : Poultry ophthalmology . In: Veterinary Ophthalmology , Third Edition, edited by Gelatt K.N. , Baltimore : Lippincott, Pennsylvania, Williams & Wilkins 1999 , pp. 1177 1207 . Search in Google Scholar

Shivaprasad H.L.: Eye and ear. In: Avian Histopathology, edited by T. Abdul-Azis, O.J. Fletcher J. Barnes, 4th Edition, AAAP Inc. 2016, pp. 521-524, ISBN 978-0-9789163-6-7. Shivaprasad H.L. : Eye and ear . In: Avian Histopathology , edited by Abdul-Azis T. Fletcher O.J. Barnes J. , 4 th Edition, AAAP Inc . 2016 , pp. 521 - 524 , ISBN 978-0-9789163-6-7. Search in Google Scholar

Shivaprasad H.L., Korbel R.: Blindness due to retinal dysplasia in broiler chicks. Avian Dis 2003, 47, 769–773, doi: 10.1637/6057. Shivaprasad H.L. Korbel R. : Blindness due to retinal dysplasia in broiler chicks . Avian Dis 2003 , 47 , 769 773 , 10.1637/6057 . Open DOISearch in Google Scholar

Silva E.N., Hipolito O., Grecchi R.: Natural and experimental Salmonella arizonae 18:z4,z32 (Ar. 7:1,7,8) infection in broilers. Bacteriological and histopathological survey of eye and brain lesions. Avian Dis 1980, 24, 631–636. Silva E.N. Hipolito O. Grecchi R. : Natural and experimental Salmonella arizonae 18:z4,z32 (Ar . 7:1,7,8) infection in broilers. Bacteriological and histopathological survey of eye and brain lesions. Avian Dis 1980 , 24 , 631 636 . Search in Google Scholar

Van Empel P.C., Hafez H.M.: Ornithobacterium rhinotracheale: a review. Avian Pathol 1999, 8, 217–227, doi: 10.1080/03079459994704. Van Empel P.C. Hafez H.M. : Ornithobacterium rhinotracheale: a review . Avian Pathol 1999 , 8 , 217 227 , 10.1080/03079459994704 . Open DOISearch in Google Scholar

Willis A.M., Wilkie D.A.: Avian ophthalmology Part 1: Anatomy, examination, and diagnostic techniques. J Avian Med Surg 1999, 13, 160–166. Willis A.M. Wilkie D.A. : Avian ophthalmology Part 1: Anatomy, examination, and diagnostic techniques . J Avian Med Surg 1999 , 13 , 160 166 . Search in Google Scholar

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