[
Abdel-Hafez M.A.M., Fadiel A., Marai I.F.M., El-Darawany A.A. (2008). Reproductive performance traits as affected by heat stress and its alleviation in sheep. Trop. Subtrop. Agroecosystems, 8: 209-234.
]Search in Google Scholar
[
Al Mufarji A., Mohammed A.A., Al Masruri H., Al Zeidi R. (2022). Modulation impacts of Moringa oleifera on thermo tolerance parameters and blood indices in subtropical ewes under heat stress. Adv. Anim. Vet. Sci., 10: 1641-1648.
]Search in Google Scholar
[
Adama J.Y., Aremu A., Adenike U.M. (2018). Effect of confinement and semi-intensive system of management on the rectal temperature of sheep. J. Sci. Educ. Technol., 14: 30-5.
]Search in Google Scholar
[
Aggarwal A., Upadhyay R., Aggarwal A., Upadhyay R. (2013). Heat stress and hormones. Heat stress and animal productivity. Delhi, India, Springer, 27-51 pp.
]Search in Google Scholar
[
Ahmad Para I., Ahmad Dar P., Ahmad Malla B., Punetha M., Rautela A., Maqbool, I., Rayees, M. (2020). Impact of heat stress on the reproduction of farm animals and strategies to ameliorate it. Biol. Rhythm Res., 51: 616-632.
]Search in Google Scholar
[
Aké-Villanueva J.R., Aké-López J.R., Magaña-Monforte J.G., Segura-Correa J.C. (2019). Reproductive behavior in hair sheep rams under tropical conditions. Trop. Anim. Health Prod., 51: 1627-1635
]Search in Google Scholar
[
Amitha J.P., Krishnan G., Bagath M., Sejian V., Bhatta R. (2019). Heat stress impact on the expression patterns of different reproduction related genes in Malabari goats. Theriogenology, 131: 169-176.
]Search in Google Scholar
[
Andanson S., Boissy A., Veissier I. (2020). Animal. Conditions for assessing cortisol in sheep: the total form in blood v. the free form in saliva. Animal, 14: 1916-1922.
]Search in Google Scholar
[
Barragán Sierra A., Avendaño-Reyes L., Hernández Rivera J.A., Vicente-Pérez R., Correa-Calderón A., Mellado M., Meza-Herrera C.A., Macías-Cruz, U. (2021). Thermoregulation and reproductive responses of rams under heat stress. Review. Rev. Mex. Cienc. Pecu, 12: 910-931.
]Search in Google Scholar
[
Berman A., Horovitz T., Kaim M., Gacitua H. (2016). A comparison of THI indices leads to a sensible heat-based heat stress index for shaded cattle that aligns temperature and humidity stress. Int. J. Biometeorol., 60: 1453-1462.
]Search in Google Scholar
[
Bhasin S. (2003). Androgen effects in mammals. Encyclopedia of hormones, 70-83.
]Search in Google Scholar
[
Boni R. (2019). Heat stress, a serious threat to reproductive function in animals and humans. Mol. Reprod. Dev., 86: 1307-1323.
]Search in Google Scholar
[
Bhateshwar V., Rai D.C., Datt M. (2021). Heat stress responses in small ruminants under arid and semi-arid regions of Western India: A Review. Agricultural Reviews, R-2393: 1-9.
]Search in Google Scholar
[
Cai Y., Deng M., Zhang Q., Liu Z., Wang L., Sheng W., Zhang Y., You P., Wang Z., Wang F. (2021). Effects of dietary betaine supplementation on biochemical parameters of blood and testicular oxidative stress in Hu sheep. Theriogenology, 164: 65-73.
]Search in Google Scholar
[
Chen Y., Yu T. (2018). Testosterone mediates hyperthermic response of mice to heat exposure. Life sciences, 214: 34-40.
]Search in Google Scholar
[
Celec P., Ostatníková D., Hodosy J. (2015). On the effects of testosterone on brain behavioral functions. Front. Neurosci., 9: 12.
]Search in Google Scholar
[
Chauhan S.S., Rashamol V.P., Bagath M., Sejian V., Dunshea F.R. (2021). Impacts of heat stress on immune responses and oxidative stress in farm animals and nutritional strategies for amelioration. Int. J. Biometeorol., 65: 1231-1244.
]Search in Google Scholar
[
Corazzin M., Del Bianco S., Bovolenta S., Piasentier E. (2019). Carcass characteristics and meat quality of sheep and goat. In: More than beef, pork and chicken–the production, processing, and quality traits of other sources of meat for human diet, Lorenzo J.M., Munekata P.E., Barba F.J., Toldra F. (Eds.). Springer, Switzerland, pp. 119-165.
]Search in Google Scholar
[
Curtis S.E. (1983). Environmental management in animal agriculture. Ames, Iowa. Iowa State University Press. 410 pp.
]Search in Google Scholar
[
Das R., Sailo L., Verma N., Bharti P., Saikia J., Imtiwati K.R., Kumar R. (2016). Impact of heat stress on health and performance of dairy animals: A review. Vet. World., 9: 260-268.
]Search in Google Scholar
[
Darbandi M., Darbandi S., Agarwal A., Sengupta P., Durairajanayagam D., Henkel R., Sadeghi M.R. (2018). Reactive oxygen species and male reproductive hormones. Reprod. Biol. Endocrinol., 16: 1-14
]Search in Google Scholar
[
Darbandi S., Darbandi M. (2016). Lifestyle modifications on further reproductive problems. Cresco J. Reprod. Sci., 1: 1–2.
]Search in Google Scholar
[
da Silva R.G., Maia A.S.C. (2012). Principles of animal biometeorology (Vol. 2). Springer Science & Business Media.
]Search in Google Scholar
[
de La Salles A.Y.F., Batista L.F., de Souza B.B., da Silva A.F., de Barros Correia É.L. (2020). Growth and reproduction hormones of ruminants subjected to heat stress. J. Anim. Behav. Biometeorol., 5: 7-12.
]Search in Google Scholar
[
de Silva T.P.D., da Costa Torreão J.N., Marques C.A.T., de Araújo M.J., Bezerra L.R., Kumar Dhanasekaran D., Sejian V. (2016). Effect of multiple stress factors (thermal, nutritional and pregnancy type) on adaptive capability of native ewes under semi-arid environment. J. Therm. Biol., 59: 39-46.
]Search in Google Scholar
[
de Andrade Pantoja M.H., Esteves S.N., Jacinto M.A.C., Pezzopane J.R.M., de Paz C.C.P., da Silva J.A.R., Lourenco Junior J.D.B, Brandao F.Z., Moura A.B.B., Romanello N., Botta D., Garcia, A.R. (2017). Thermoregulation of male sheep of indigenous or exotic breeds in a tropical environment. J. Therm. Biol., 69: 302-310.
]Search in Google Scholar
[
Deng C.C., Zhang J.P., Huo Y.N., Xue H.Y., Wang W., Zhang J.J., Wang X.Z. (2022). Melatonin alleviates the heat stress‐induced impairment of Sertoli cells by reprogramming glucose metabolism. J. Pineal Res., 73: e12819.
]Search in Google Scholar
[
Dhumal S.S., Naik P., Dakshinamurthy S., Sullia K. (2021). Semen pH and its correlation with motility and count-A study in subfertile men. JBRA Assist. Reprod., 25: 172.
]Search in Google Scholar
[
Dunshea F.R., Gonzalez-Rivas P.A., Hung A.T., DiGiacomo K., Chauhan S.S., Leury B.J., Ponnampalan E.N., Cottrell J. J. (2017). Nutritional strategies to alleviate heat stress in sheep. Singapore, Springer, pp. 371-388.
]Search in Google Scholar
[
Dwyer C. (2009). The behaviour of sheep and goats. The Ethology of Domestic Animals, 2nd Edition: An Introductory Text. Wallingford, Oxfordshire, UK, CAB International, pp. 161-176.
]Search in Google Scholar
[
Escareño L., Salinas-González H., Wurzinger M., Iñiguez L., Sölkner J., Meza-Herrera C. (2012). Dairy goat production systems. Trop. Anim. Health Prod., 45: 17-34.
]Search in Google Scholar
[
EL Nagar A. (2022). Seminal Plasma Proteins as Biomarkers of Fertility and Semen Traits in Egyptian Barki Rams. Ann. Agric. Sci. Moshtohor, 60: 787-798.
]Search in Google Scholar
[
El-Shalofy A.S., Samir H., El-Sherbiny H.R. (2023). Intramuscular administration of l-arginine boosts testicular hemodynamics, plasma concentrations of testosterone and nitric oxide in heat-stressed rams. Theriogenology, 197: 127-132.
]Search in Google Scholar
[
El-Sherbiny H.R., El-Shalofy A.S., Samir H. (2022). Exogenous L-carnitine administration ameliorates the adverse effects of heat stress on testicular hemodynamics, echotexture, and total antioxidant capacity in Rams. Front. Vet. Sci., 9.
]Search in Google Scholar
[
Fadl A.M., Abdelnaby E.A., El-Sherbiny H.R. (2022). Supplemental dietary zinc sulphate and folic acid combination improves testicular volume and haemodynamics, testosterone levels and semen quality in rams under heat stress conditions. Reprod. Domest. Anim., 57: 567-576
]Search in Google Scholar
[
FAO (2018) Faostat database. http://www.fao.org/faostat/en/#home. Accessed 10 Mac 2023
]Search in Google Scholar
[
Fowler D.G., Dun R.B. (1966). Skin folds and Merino breeding. 4. The susceptibility of rams selected for a high degree of skin wrinkle to heat induced infertility. Aust. J. Exp. Agric., 6: 121-127.
]Search in Google Scholar
[
Fontbonne A., Thomas, P.G.A. (2008). Chapter 23 - Drugs and reproduction. Edinburgh, Scotland, Saunders Elsevier, 2nd ed., pp. 528-545
]Search in Google Scholar
[
Francis J.R., Javvaji P.K., Dhali A., Kolte A.P., Roy S.C., Giridhar K., Sejian V. (2020). Seasonal variations in quality, preservability and fertilizing ability of ovine spermatozoa. Biol. Rhythm Res., 51: 951-962.
]Search in Google Scholar
[
Garcia-Oliveros L.N., de Arruda R.P., Batissaco L., Gonzaga V.H.G., Nogueira V.J.M., Florez-Rodriguez S.A., Pinto S.C.C., Nichi M., Losano, J.D.d.A., Kawai G.K.V, Celeghini E.C.C. (2022). Chronological characterization of sperm morpho-functional damage and recovery after testicular heat stress in Nellore bulls. J. Therm. Biol., 106: 103237
]Search in Google Scholar
[
Godfrey R.W., Collins J.R., Gray M.L. (1998). Evaluation of sexual behavior of hair sheep rams in a tropical environment. J. Anim. Sci., 76: 714-717.
]Search in Google Scholar
[
Gonzalez-Rivas P.A., Chauhan S.S., Ha M., Fegan N., Dunshea F.R., Warner R.D. (2020). Effects of heat stress on animal physiology, metabolism, and meat quality: A review. Meat Sci., 162: 108025.
]Search in Google Scholar
[
Gottardi F.P., Pannunzio Dias e Silva T., Paraguaio P.E., Torreão J. N. D. C., Torreão Marques C.A., Bezerra L.R., de Aroujo M.J., Machado L.P., Abdalla Filho A.L. (2020). The role of diet on the rhythm of physiological responses of lactating ewes under heat stress. Biol. Rhythm Res., 51: 349-361.
]Search in Google Scholar
[
Hamilton T.R.D.S., Mendes C.M., Castro L.S.D., Assis P.M.D., Siqueira A.F.P., Delgado J. D.C., Goissis M.D., Muiño-Blanco T., Cebrián-Pérez J.A., Nichi M., Visintin J.A., Assumpção M.E.O.D.Á. (2016). Evaluation of lasting effects of heat stress on sperm profile and oxidative status of ram semen and epididymal sperm. Oxid. Med. Cell. Longev., 2016: 1-12.
]Search in Google Scholar
[
Habeeb A.A., Gad A.E., Atta M.A. (2018). Temperature-humidity indices as indicators to heat stress of climatic conditions with relation to production and reproduction of farm animals. Int. J. Biotechnol. Recent Adv., 1: 35-50.
]Search in Google Scholar
[
Habeeb A.A. (2020). The techniques used in tropical and subtropical regions to reduce the negative effects of heat stress on farm animals. World J. Adv. Res. Rev., 7: 077-084.
]Search in Google Scholar
[
Habibu B., Emmanuel M.J., Yahaya A.A., Baba A.Y., Yaqub L.S., Buhari H.U., Dzenda T., Kawu M.U. (2021). Adaptive performance of hairy thin-tailed (Yankasa) and wooly fat-tailed (Ossimi) sheep in tropical hot-dry season. Small Rumin. Res., 205: 106541.
]Search in Google Scholar
[
Igono M.O., Bjotvedt G., Sanford-Crane H.T. (1992). Environmental profile and critical temperature effects on milk production of Holstein cows in desert climate. Int. J. Biometeorol., 36; 77-87.
]Search in Google Scholar
[
Júnior C.C., Lucci C.M., Peripolli V., Silva A.F., Menezes A.M., Morais S.R.L., Aroujo M.S., Ribeiro L.M.S.C, Mattos R.C., McManus, C. (2015). Effects of testicle insulation on seminal traits in rams: preliminary study. Small Rumin. Res., 130: 157-165.
]Search in Google Scholar
[
Joy A., Dunshea F.R., Leury B.J., Clarke I.J., DiGiacomo K., Chauhan, S.S. (2020). Resilience of small ruminants to climate change and increased environmental temperature: a review. Animals, 10: 867.
]Search in Google Scholar
[
Kang S., Kim D.H., Lee S., Lee T., Lee K. W., Chang H. H., Moon B., Ayasan T., Choi Y. H. (2020). An acute, rather than progressive, increase in temperature-humidity index has severe effects on mortality in laying hens. Front. Vet. Sci., 7: 568093.
]Search in Google Scholar
[
Kastelic J.P., Wilde R.E., Bielli A., Genovese P., Rizzoto G., Thundathil J. (2019). Hyperthermia is more important than hypoxia as a cause of disrupted spermatogenesis and abnormal sperm. Theriogenology, 131: 177-181.
]Search in Google Scholar
[
Karthik D., Suresh J., Reddy Y.R., Sharma G.R.K., Ramana J.V., Gangaraju G., Reddy Y.P.K., Yasaswini D., Adegbeye M.J. Reddy, P.R.K. (2021a). Farming systems in sheep rearing: Impact on growth and reproductive performance, nutrient digestibility, disease incidence and heat stress indices. Plos one, 16: e0244922.
]Search in Google Scholar
[
Karthik D., Suresh J., Reddy Y.R., Sharma G. R. K., Ramana J.V., Reddy P.P.R., Reddy Y.P.K., Gangaraju G., Yasaswini D., Adegbeye M.J., Reddy P.R.K. (2021b). Adaptive profiles of Nellore sheep with reference to farming system and season: physiological, hemato-biochemical, hormonal, oxidative-enzymatic and reproductive standpoint. Heliyon, 7: e07117.
]Search in Google Scholar
[
Kahwage P.R., Esteves S.N., Jacinto M.A.C., Junior W.B., Machado R., Romanello N., Passeri L.F., de Mendonça K.L., Garcia A.R. (2018). Assessment of body and scrotal thermoregulation and semen quality of hair sheep rams throughout the year in a tropical environment. Small Rumin. Res., 160: 72-80.
]Search in Google Scholar
[
Kleemann D.O., Kelly J.M., Arney L.J., Tilbrook A.J., Walker S.K. (2022). Melatonin dose: testicular and testosterone response in Border Leicester rams during spring. Livest. Sci., 260: 104928.
]Search in Google Scholar
[
Kobayashi Y., Wakamiya K., Kohka M., Yamamoto Y., Okuda K. (2013). Summer heat stress affects prostaglandin synthesis in the bovine oviduct. Reproduction, 146: 103-110.
]Search in Google Scholar
[
Khan S., Khan I.U., Khan A.Z., Zaman S., Majid A., Rehman A.U., Khan M.A., Maris H., Ullah R., Qureshi S. (2020). Evaluating fertility and growth rate potential of indigenous sheep breeds submitted to heat stress under different management systems. J. Adv. Vet. Anim. Res., 7: 170.
]Search in Google Scholar
[
Lykkesfeldt J., Svendsen O. (2007). Oxidants and antioxidants in disease: oxidative stress in farm animals. Vet. J. VET., 173: 502-511.
]Search in Google Scholar
[
Mahfouz R., Sharma R., Thiyagarajan A., Kale V., Gupta S., Sabanegh E., Agarwal A. (2010). Semen characteristics and sperm DNA fragmentation in infertile men with low and high levels of seminal reactive oxygen species. Fertil. Steril., 94: 2141-2146.
]Search in Google Scholar
[
Mahidin M.U. (2021, August 26). Supply and Utilization Accounts Selected Agricultural Commodities, Malaysia 2016-2020. Department of Statistic Malaysia. Retrieved from https://www.dosm.gov.my/v1/index.php/index.php?r=column/cthemeByCat&cat=164&bul_id=cHgwanhNdU4vWXRvc3pnZU9xSjZTUT09&menu_id=Z0VTZGU1UHBUT1VJMFlpaXRRR0xpdz09
]Search in Google Scholar
[
Maquivar M.G., Smith S.M., Busboom J.R. (2021). Reproductive management of rams and ram lambs during the pre-breeding season in US sheep farms. Animals, 11: 2503.
]Search in Google Scholar
[
Marcone G., Kaart T., Piirsalu P., Arney D.R. (2021). Panting scores as a measure of heat stress evaluation in sheep with access and with no access to shade. Appl. Anim. Behav. Sci., 240: 105350.
]Search in Google Scholar
[
Maksimović N., Hristov S., Milovanović A., Barna T., Stojanov I., Cekić B., Milošević-Stanković I. (2021). Development of sexual behaviour in ram lambs and its correlation to serum testosterone. Large Anim. Rev., 27: 31-34.
]Search in Google Scholar
[
Marai I.F.M., El-Darawany A.A., Fadiel A., Abdel-Hafez M.A.M. (2007). Physiological traits as affected by heat stress in sheep – a review. Small Rumin. Res., 71: 1-12.
]Search in Google Scholar
[
Marai I.F., El‐Darawany H.A., Ismail E.S.A.F., Abdel‐Hafez M.A. (2006). Tunica dartos index as a parameter for measurement of adaptability of rams to subtropical conditions of Egypt. Anim. Sci. J., 77: 487-494.
]Search in Google Scholar
[
Maquivar M.G., Smith S.M., Busboom J.R. (2021). Reproductive management of rams and ram lambs during the pre-breeding season in US sheep farms. Animals, 11: 2503.
]Search in Google Scholar
[
Maurya V.P., Sejian V., Kumar D., Naqvi S.M.K. (2020). Impact of heat stress, nutritional stress and their combinations on the adaptive capability of Malpura sheep under hot semi-arid tropical environment. J. Anim. Behav. Biometeorol., 7: 17-23.
]Search in Google Scholar
[
Maurya V.P., Sejian V., Kumar D., Naqvi, S.M.K. (2018). Biological ability of Malpura rams to counter heat stress challenges and its consequences on production performance in a semi-arid tropical environment. Biol. Rhythm Res., 49: 479-493.
]Search in Google Scholar
[
Maurya V.P., Sejian V., Kumar D., Naqvi S.M.K. (2016). Impact of heat stress, nutritional restriction and combined stresses (heat and nutritional) on growth and reproductive performance of Malpura rams under semi‐arid tropical environment. J. Anim. Physiol. Anim. Nutr., 100: 938-946.
]Search in Google Scholar
[
Mahjoubi E., Yazdi M.H., Aghaziarati N., Noori G.R., Afsarian O., Baumgard L.H. (2015). The effect of cyclical and severe heat stress on growth performance and metabolism in Afshari lambs. J. Anim. Sci., 93: 1632-1640.
]Search in Google Scholar
[
Mascarenhas N. M. H., Furtado D.A., Fonsêca V.D.F.C., de Souza B.B., de Oliveira A.G., Morais F.T.L., de Sousa Silva R., da Silva M.R., Batista L.F., Dornelas K.C., Bezerra C.V.d.C, da Costa Silva, J. A. P. (2023). Thermal stress index for native sheep. J. Therm. Biol., 115: 103607.
]Search in Google Scholar
[
Mehranfrooz A., Ahmadi A., Yavari M. (2022). Semen quality and biochemistry and blood antioxidant status in Mehraban rams supplemented with organic selenium alone or combined with organic chromium during the summer. Res. Sq., 1: 2-17.
]Search in Google Scholar
[
McManus C.M., Faria D.A., Lucci C.M., Louvandini H., Pereira S.A., Paiva S.R. (2020). Heat stress effects on sheep: Are hair sheep more heat resistant?. Theriogenology, 155: 157-167.
]Search in Google Scholar
[
Moura A.B.B., Brandão F.Z., Esteves S.N., de Souza G.N., da Fonseca J.F., Pantoja M.H.A., Romanello N., Botta D., Giro A., Garcia, A.R. (2019). Differences in the thermal sensitivity and seminal quality of distinct ovine genotypes raised in tropical conditions. Theriogenology, 123: 123-131.
]Search in Google Scholar
[
Mohapatra A., De K., Kumar D., Naqvi S.M.K., Singh R. (2019). Seasonal rhythmicity of thermoregulatory physiological responses in fat-rumped sheep under semi-arid tropical environment. Biol. Rhythm Res., 50: 949-956.
]Search in Google Scholar
[
Nedeva I., Slavov T., Radev V., Panayotov D., Varlyakov I. (2022). Blood biochemical profile as an objective measure of welfare in Lacaune sheep. Bulg. J. Agric. Sci., 28: 324-30.
]Search in Google Scholar
[
Nardone A., Ronchi B., Lacetera N., Ranieri M.S., Bernabucci U. (2010). Effects of climate changes on animal production and sustainability of livestock systems. Livest. Sci., 130: 57-69.
]Search in Google Scholar
[
Naqvi S.M.K., Kumar D., Paul R.K., Sejian V. (2012). Environmental Stresses and Livestock Reproduction. In: Sejian V., Naqvi S., Ezeji T., Lakritz J., Lal R. (Editors). Environmental Stress and Amelioration in Livestock Production. Berlin, Heidelberg, Springer, pp. 97-128.
]Search in Google Scholar
[
Nicolás-López P., Macías-Cruz U., Mellado M., Correa-Calderón A., Meza-Herrera C.A., Avendaño-Reyes L. (2021). Growth performance and changes in physiological, metabolic and hematological parameters due to outdoor heat stress in hair breed male lambs finished in feedlot. Int. J. Biometeorol., 65: 1451-1459.
]Search in Google Scholar
[
Oke O.E., Uyanga V.A., Iyasere O.S., Oke F.O., Majekodunmi B.C., Logunleko M.O., Abiona J.A., Nwosu E.U., Abioja M.O., Daramola J.O., Onagbesan O.M. (2021). Environmental stress and livestock productivity in hot-humid tropics: Alleviation and future perspectives. J. Therm. Biol., 100: 103077.
]Search in Google Scholar
[
Pérez R.V., Macías Cruz U., Avendaño Reyes L., Correa-Calderón A., López Baca M.D.L.Á., Lara Rivera A.L. (2020). Heat stress impacts in hair sheep production. Review. Rev. Mex. Cienc. Pecu., 11: 205-222.
]Search in Google Scholar
[
Prathap P., Chauhan S.S., Leury B.J., Cottrell J.J., Joy A., Zhang M., Dunshea F.R. (2022). Reducing the Fermentability of Wheat with a Starch Binding Agent Reduces Some of the Negative Effects of Heat Stress in Sheep. Animals, 12: 1396.
]Search in Google Scholar
[
Puppel K., Kapusta A., Kuczyńska B. (2015). The etiology of oxidative stress in the various species of animals, a review. J. Sci. Food Agric., 95: 2179-2184.
]Search in Google Scholar
[
Rahimi J., Mutua J.Y., Notenbaert A.M., Marshall K., Butterbach-Bahl K. (2021). Heat stress will detrimentally impact future livestock production in East Africa. Nat. Food, 2: 88-96.
]Search in Google Scholar
[
Ravi Kanth Reddy P., Srinivasa Kumar D., Raghava Rao E., Venkata Seshiah C., Sateesh K., Reddy, Y.P.K., Hyder I. (2019). Assessment of eco-sustainability vis-à-vis zoo-technical attributes of soybean meal (SBM) replacement with varying levels of coated urea in Nellore sheep (Ovis aries). PLoS One, 14: e0220252.
]Search in Google Scholar
[
Rebez E.B., Sejian V., Silpa M.V., Dunshea F.R. (2023). Heat stress and histopathological changes of vital organs: A novel approach to assess climate resilience in farm animals. Sustainability, 15: 1242.
]Search in Google Scholar
[
Reddy P.R., Kumar B.R., Prasad C.S., Venkataseshiah C., Hyder I. (2022). Erythrocyte fragility based assessment of true thermal resilience in tropical small ruminants. Biol. Rhythm Res., 53: 234-245.
]Search in Google Scholar
[
Ren G., Hao X., Zhang X., Liu S., Zhang J. (2022). Effects of guanidinoacetic acid and betaine on growth performance, energy and nitrogen metabolism, and rumen microbial protein synthesis in lambs. Anim. Feed Sci. Technol., 292: 115402.
]Search in Google Scholar
[
Rizzoto G., Kastelic J.P. (2020). A new paradigm regarding testicular thermoregulation in ruminants?. Theriogenology, 147: 166-175.
]Search in Google Scholar
[
Rout P.K., Kumar A., Behera B.K. (2019). Goat Production and Supply Chain Management in the Tropics. Haryana, India. CABI.
]Search in Google Scholar
[
Rocha D.R., Martins J.A.M., van Tilburg M.F., Oliveira R.V., Moreno F.B., Monteiro-Moreira A.C.O., Moreira R.A., Aroujo A.A., Moura A.A. (2015). Effect of increased testicular temperature on seminal plasma proteome of the ram. Theriogenology, 84: 1291-1305.
]Search in Google Scholar
[
Ruiz-Ortega M., García y González, E. C., Hernández-Ruiz, P. E., Pineda-Burgos, B. C., Sandoval-Torres, M. A., Velázquez-Morales, J. V., Rodríguez-Castillo J.D.C., Rodríguez-Castañeda E.L., Robles-Robles J.M., Ponce-Covarrubias, J. L. (2022). Thermoregulatory Response of Blackbelly Adult Ewes and Female Lambs during the Summer under Tropical Conditions in Southern Mexico. Animals, 12: 1860.
]Search in Google Scholar
[
Romero R.D., Montero Pardo A., Montaldo H.H., Rodríguez, A.D., Hernández Cerón J. (2013). Differences in body temperature, cell viability, and HSP-70 concentrations between Pelibuey and Suffolk sheep under heat stress. Trop. Anim. Health. Prod., 45: 1691-1696.
]Search in Google Scholar
[
Li C., Zhang J., Li Y., Zhao X., Liang H., Li K., Qu M., Qiu Q., Ouyang, K. (2022). Glutamate Supplementation Improves Growth Performance, Rumen Fermentation, and Serum Metabolites in Heat-Stressed Hu Sheep. Front. Nutr., 9: 851386.
]Search in Google Scholar
[
Liu C., Wang C., Zhang J., Liu Q., Guo G., Huo W.J., Zhang, Y.L. (2021). Guanidinoacetic acid and betaine supplementation have positive effects on growth performance, nutrient digestion and rumen fermentation in Angus bulls. Anim. Feed Sci. Technol., 276: 114923.
]Search in Google Scholar
[
Sa’ayinzat F.E., Bawa E.K., Ogwu D., Ayo J.O. (2021). Oxidative stress and its effects on reproductive performance in thermally-stressed ewes. Infertility, 6: 09-17
]Search in Google Scholar
[
Sanchez-Davila F., Bernal-Barragan H., Vazquez-Armijo J.F., López-Villalobos N., Ledezma-Torres R.A., Grizelj J., Brenner E.G., Vasquez N.A., Palomera, C. L. (2020). Annual variation in reproductive parameters and sexual behaviour of Saint Croix rams in a semi-desert region in Mexico. J. Appl. Anim. Res., 48: 499-506.
]Search in Google Scholar
[
Seixas L., Peripolli V., Façanha D.A.E., Fischer V., Poli C.H.E.C., Melo C.B., Louvandini H., McManus, C.M. (2021). Physiological and hematological parameters of sheep reared in the tropics and subtropics. Arq. Bras. Med. Vet. Zootec., 73: 622-630.
]Search in Google Scholar
[
Sejian V., Maurya V.P., Kumar K., Naqvi S.M.K. (2012). Effect of multiple stresses on growth and adaptive capability of Malpura ewes under semi-arid tropical environment. Trop. Anim. Health Prod., 45: 107-116.
]Search in Google Scholar
[
Sejian V., Silpa M.V., Reshma Nair M.R., Devaraj C., Krishnan,G., Bagath M., König S., Gaughan J.G., Dunshea F.R., Bhatta, R. (2021). Heat stress and goat welfare: Adaptation and production considerations. Animals, 11: 1021.
]Search in Google Scholar
[
Shahat, Abdallah M., Jacob C. Thundathil, John P. Kastelic (2022). Melatonin or L-arginine in semen extender mitigate reductions in quality of frozen-thawed sperm from heat-stressed rams. Anim. Reprod. Sci., 238: 106934.
]Search in Google Scholar
[
Shahat A.M., Thundathil J.C., Kastelic J.P. (2022). Melatonin improves testicular hemodynamics and sperm quality in rams subjected to mild testicular heat stress. Theriogenology, 188: 163-169.
]Search in Google Scholar
[
Shahat A.M. Rizzoto G., Kastelic J.P. (2020). Amelioration of heat stress-induced damage to testes and sperm quality. Theriogenology, 158: 84-96.
]Search in Google Scholar
[
Shashank C.G., Prashant R.G., Kumar P., Kulkarni N.A., Tiwari M., Jayakumar S., Sejian V. (2023). Comparative assessment of growth performance of indigenous and cross-bred calves subjected to combined stressors (heat and nutritional). Int. J. Biometeorol., 67: 1435–1450.
]Search in Google Scholar
[
Singh N.P., Karim S.A., Sankhyan S.K., Verma, D.L. (2003). Carcass characteristics of finisher lambs maintained under intensive and semi-intensive system of feeding. Indian J. Small Ruminants, 9: 142-143.
]Search in Google Scholar
[
Silpa M.V., Sejian V., Koenig S., Devaraj C., Shashank C.G., Kolte A.P., Manjunathareddy G.B., Bhatta R. (2021). Skin Based Novel Approaches for Establishing Climate Resilience in Goats. In Climate Change and Livestock Production: Recent Advances and Future Perspectives. Springer, Singapore, pp.113-126
]Search in Google Scholar
[
Slimen I.B., Chniter M., Najar T., Ghram A. (2019). Meta-analysis of some physiologic, metabolic and oxidative responses of sheep exposed to environmental heat stress. Livest. Sci., 229: 179-187.
]Search in Google Scholar
[
Summer A., Lora I., Formaggioni P., Gottardo, F. (2019). Impact of heat stress on milk and meat production. Anim. Front., 9: 39-46.
]Search in Google Scholar
[
Swelum A.A., Hashem N.M., Abdelnour S.A., Taha A.E., Ohran H., Khafaga A. F., El-Tarabily K.A., Abd El-Hack, M. E. (2021). Effects of phytogenic feed additives on the reproductive performance of animals. Saudi J. Biol. Sci., 28: 5816-5822.
]Search in Google Scholar
[
Tan C.L., Knight Z.A. (2018). Regulation of body temperature by the nervous system. Neuron, 98: 31-48.
]Search in Google Scholar
[
Tao X., Xin H. (2003). Acute synergistic effects of air temperature, humidity, and velocity on homeostasis of market–size broilers. Trans. ASAE, 46: 491.
]Search in Google Scholar
[
Thornton P., Nelson G., Mayberry D., Herrero M. (2021). Increases in extreme heat stress in domesticated livestock species during the twenty‐first century. Glob. Chang. Biol., 27: 5762-5772.
]Search in Google Scholar
[
Todini L. (2007). Thyroid hormones in small ruminants: effects of endogenous, environmental and nutritional factors. Animal, 1: 997-1008.
]Search in Google Scholar
[
Lallo C.H., Cohen J., Rankine D., Taylor M., Cambell J., Stephenson T. (2018). Characterizing heat stress on livestock using the temperature humidity index (THI)—prospects for a warmer Caribbean. Reg. Environ. Change, 18: 2329-2340.
]Search in Google Scholar
[
Lewis Baida B.E., Swinbourne A.M., Barwick J., Leu S.T., van Wettere W.H. (2021). Technologies for the automated collection of heat stress data in sheep. Anim. Biotelemetry, 9: 1-15.
]Search in Google Scholar
[
Li F.K., Yang Y., Jenna K., Xia C.H., Lv S.J., Wei W.H. (2018). Effect of heat stress on the behavioral and physiological patterns of Small-tail Han sheep housed indoors. Trop. Anim. Health Prod., 50: 1893-1901.
]Search in Google Scholar
[
Temple D., Manteca X. Animal welfare in extensive production systems is still an area of concern. Front. Sustain. Food Syst., 4: 545902.
]Search in Google Scholar
[
Teufel N., Markemann A., Kaufmann B., Valle-Zárate A., Otte J. (2010). Livestock production systems in South Asia and the Greater Mekong sub-region. A quantitative description of livestock production in Bangladesh, Cambodia, India, Lao PDR, Nepal, Pakistan, Sri Lanka, Thailand, and Viet Nam. Rome, Italy, FAO, pp. 70
]Search in Google Scholar
[
Thornton P., Nelson G., Mayberry D., Herrero M. (2021). Increases in extreme heat stress in domesticated livestock species during the twenty‐first century. Glob. Chang. Biol., 27: 5762-5772.
]Search in Google Scholar
[
van Wettere, W.H., Kind K.L., Gatford K.L., Swinbourne, A.M., Leu S.T., Hayman P.T., Kelly J.M., Weaver A.C., Kleemann., D.O., Walker S.K. (2021). Review of the impact of heat stress on reproductive performance of sheep. J. Anim. Sci. Biotechnol., 12: 1-18.
]Search in Google Scholar
[
Wang X., Li T., Chen N., An X., Zhao X., Ma Y. (2020). Distinct expression and localization patterns of HSP70 in developmental reproductive organs of rams. Gene, 760: 145029.
]Search in Google Scholar
[
Xue L., Zhou S., Wang D., Zhang F., Li J., Cai L. (2022). The Low Dose of Saccharomyces cerevisiae Is Beneficial for Rumen Fermentation (Both In Vivo and In Vitro) and the Growth Performance of Heat-Stressed Goats. Microorganisms, 10: 1877.
]Search in Google Scholar
[
Yaxley K.J., Joiner K.F., Abbass H. (2021). Drone approach parameters leading to lower stress sheep flocking and movement: sky shepherding. Sci. Rep., 11: 1–9.
]Search in Google Scholar
