温热环境对母猪生产性能的影响及其调控技术研究进展

doi:10.3864/j.issn.0578-1752.2018.16.013

Abstract

Abstract: The pig industry is one of the mainstay industries of China's agriculture and rural economy. As the core component of pig farms, production performance of sows are the key factors for determining the economic benefits of pig farms. China is the largest pig breeding country in the world, and the number of breeding sows and commercial pigs are more than 50% of the world’s total. However, compared with developed countries, sows feeding management level is low in our country, and there is still a large gap in production performance. The performance of sows in practical production is affected by many factors, including nutrient intake, body characteristics, feeding environment, parity of sows, etc. Thermal environment is one of the major factors affecting the health and production performance of sows. The warm environment consists of temperature, relative humidity, air flow, radiation, and heat transfer. These factors work together on the animal to make them feel cold or hot and comfortable or not. The suitable thermal environment is conducive to ensuring the sows’ health and improving their production performance. Conversely, the unsuitable warm environment will cause heat stress in sows, destroy the body heat balance, and even lead production stop, make the body enters a pathological state, cause illness and ultimately death. Therefore, mastering the warm environment requirements of sows and adopting effective control measures are essential to improve the performance of sows and the economic benefits of pig farms. This paper reviewed the effects of warm environment on sows and the corresponding regulation techniques, aiming to provide theoretical basis and technical support for the regulation of thermal environment in pig production and management in China. (1) The effects of the warm environment on the sow are mainly reflected in changes of behavior, physiology and production performance. In terms of behavior, sows will be thermally adjusted by changing the behavioral posture, such as increasing the lying time, reducing the standing and prone time in hot environment. Because the contact area of the sows' body surface with the ground is larger when the side is lying, and the heat dissipation of the body can be increased, but frequent changes in sows’ posture will increase the piglet death rate. In the aspect of physiology, sows will reduce metabolic heat production and increase heat dissipation by reducing feed intake, increasing respiration rate and skin blood flow during heat stress, while promoting the adrenocorticotropic hormone and cortisol in the blood of sows, thyroxine dropped and insulin sensitivity increased. These physiological changes will destroy the endocrine and energy balance of the sow, leading to early embryo death, miscarriage and milk production reduction. In terms of production performance, heat stress adversely affects the performance of sow estrus interval, litter size and lactation. Heat stress mainly affects the re-service rate and litter size at pre-pregnancy and in late pregnancy mainly affects the number of live births and stillbirths. After parturition, heat stress mainly affects the survival rate of piglets. High ambient temperature adversely affects the performance of weaned piglets by affecting the lactation of sows, and heat stress can delay the weaning-to-estrus interval by affecting the feed intake, weight loss and hormone secretion of sows. (2) Thermal environment control technology of sows mainly includes overall cooling and partial cooling of the pig house. The Pad and Fan evaporative cooling system is the representative of the overall cooling of pig house. In the system, the negative pressure inside the house is caused by the exhaust of the fan, forcing the unsaturated air outside the house to flow through the wet porous curtain, causing the evaporation of water to absorb a large amount of latent heat, thereby reducing the temperature inside pig house. The system has the advantages of simplicity and cost-effectiveness. The local cooling of the pig house is mainly for the temperature control of the lying area floor, pig pens on both sides and upper part of the pig pens. The main methods include air duct evaporative cooling, cold water cover cooling, floor cooling, etc. These methods have the advantages of obvious cooling effect and energy saving.

Key words: sows, ambient temperature, regulation, performance

ZENG YaQiong, WANG Hao, LIU ZuoHua, LI Shuang, PU ShiHua, LONG DingBiao. Effects of Ambient Temperature on Production Performance of Sows and Regulatory Techniques[J].Scientia Agricultura Sinica, 2018, 51(16): 3171-3180.

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References

[1] 张晓东. 中国养猪业生产波动分析与预测预警研究[D]. 哈尔滨: 东北农业大学, 2013.

ZHANG X D. The Study on the production fluctuation analysis, forecasting and warning for the pig industry in China[D]. Harbin: Northeast Agricultural University, 2013. (in Chinese)

[2] 孙海清. 母猪妊娠日粮中可溶性纤维调控泌乳期采食量的机制及改善母猪繁殖性能的作用[D]. 武汉: 华中农业大学, 2013.

SUN H Q. Mechanism of soluble fiber inclusion in gestation diets regulating lactation feed intake of sows and its role in improving reproductive performance of sows[D]. Wuhan: Huazhong Agricultural University, 2013. (in Chinese)

[3] WHITTAKER A L, PLUSH K J, TERRY R, HUGHES P E, KENNAWAY, D J, VAN W, WILLIAM H E J. Effects of space allocation and parity on selected physiological and behavioral measures of well-being and reproductive performance in group-housed gestating sows. Livestock Science, 2015, 176: 161-165.

[4] VAN WETTERE W H E J, PAIN S J, HUGHES P E. Dietary ractopamine supplementation during the first lactation affects milk composition, piglet growth and sow reproductive performance. Animal Reproduction Science, 2016, 174: 87-92.

[5] FAN Z Y, YANG X J, KIM J, MENON D, BAIDOO S K. Effects of dietary tryptophan: lysine ratio on the reproductive performance of primiparous and multiparous lactating sows. Animal Reproduction Science, 2016, 170: 128-134.

[6] REMPEL L A, VALLET J L, LENTS C A, NONNEMAN D J. Measurements of body composition during late gestation and lactation in first and second parity sows and its relationship to piglet production and post-weaning reproductive performance. Livestock Science, 2015, 178: 289-295.

[7] CABEZON F A, SCHINCKEL A P, MARCHANT-FORDE J N, JOHNSON J S, STWALLEY R M. Effect of floor cooling on late lactation sows under acute heat stress. Livestock Science, 2017.

[8] WEGNER K, LAMBERTZ C, DAS G, REINER G, GAULY M. Effects of temperature and temperature‐humidity index on the reproductive performance of sows during summer months under a temperate climate. Animal Science Journal, 2016, 87(11):1334-1339.

[9] POLLMAN D. Seasonal Effects On Sow Herds: Industry Experience and Management Strategies. Journal of Animal Science, 2010, 88(Suppl. 3): 9.

[10] ST-PIERRE N R, COBANOV B, SCHNITKEY G. Economic Losses from heat stress by US livestock industries. Journal of Dairy Science, 2003, 86 (1S): 52-77.

[11] PELTONIEMI O A T, TAST A, LOVE R J. Factors effecting reproduction in the pig: Seasonal effects and restricted feeding of the pregnant gilt and sow. Animal Reproduction Science, 2000, 60-61 (Suppl. C): 173-184.

[12] VON BORELL E, DOBSON H, PRUNIER A. Stress, behavior and reproductive performance in female cattle and pigs. Hormones and Behavior, 2007, 52 (1): 130-138.

[13] TUMMARUK P, TANTASUPARUK W, TECHAKUMPHU M, KUNAVONGKRIT A. Effect of season and outdoor climate on litter size at birth in purebred landrace and Yorkshire sows in Thailand. Journal of Veterinary Medical Science, 2004, 66(5): 477-482.

[14] OMTVEDT I T, NELSON R. E, EDWARDS R. L,STEPHENS D F, TURMAN E J. Influence of Heat Stress During Early, Mid and Late Pregnancy of Gilts. Journal of Animal Science, 1971, 32: 312-317.

[15] TANTASUPARUK W, LUNDEHEIM N, DALIN A M, KUNAVONGKRIT A, EINARSSON S. reproductive performance of purebred landrace and Yorkshire sows in Thailand with special reference to seasonal influence and parity number. Theriogenology, 2000, 54: 481-496.

[16] BLOEMHOF S, MATHUR P K, KNOL E F, VAN DER WAAIJ H E. Effect of daily environmental temperature on farrowing rate and total born in dam line sows. Journal of Animal Science, 2013, 91: 2667-2679.

[17] 杨润泉, 方热军, 杨飞云, 黄金秀, 刘虎, 周水岳, 周晓蓉, 王浩. 环境温湿度和猪舍空气质量对妊娠母猪生产性能的影响. 家畜生态学报, 2016(12):40-43.

YANG R Q, FANG R J, YANG F Y, HUANG J X, LIU H, ZHOU S Y, ZHOU X R, WANG H. Effect of environmental temperature, humidity, and air quality on performance of pregnant sows. Journal of Domestic Animal Ecology, 2016(12):40-43. (in Chinese)

[18] 乔克. 重庆地区半开放式猪舍夏季降温措施研究[D], 重庆: 西南大学, 2006.

QIAO K. Study on summer cooling measures of semi - enclosed pig house in Chongqing[D]. Chongqing: Southwest University, 2006. (in Chinese)

[19] 李延森, 沈祥星, 李春梅. 母猪发情和产仔性能与环境温度变化相关性分析. 畜牧兽医学报, 2016(6):1133-1139.

LI Y S, SHEN X X, LI C M. Correlation Analysis between the ambient temperatures and reproductive performance of sows. Acta Veterinaria et Zootechnica Sinica, 2016(6):1133-1139. (in Chinese)

[20] EISSEN J J, APELDORN E J, KANIS E, VERSTEGEN M W A, GREEF DE K H. The Importance of a high feed intake during lactation of primiparous sows nursing large litters. Journal of Animal Science, 2003, 81(3): 594-603.

[21] EISSEN J J, KANIS E, KEMP B. Sow factors affecting voluntary feed intake during lactation. Livestock Production Science, 2000, 64(2): 147-165.

[22] LUCY M C, SAFRANSKI T J. Heat stress in pregnant sows: Thermal responses and subsequent performance of sows and their offspring. Molecular Reproduction and Development, 2017, 84(9): 946-956.

[23] SPENCER J D, BOYD R D, CABRERA R, ALLEE G L. Early weaning to reduce tissue mobilization in lactating sows and milk supplementation to enhance pigs weaning. Journal of Animal Science, 2003, 81: 2041-2052.

[24] WILLIAMS A M, SAFRANSKI D E, EICHEN P A, COATE E A, LUCY M C. Effects of a controlled heat stress during late gestation, lactation, and after weaning on thermoregulation, metabolism, and reproduction of primiparous sows. Journal of Animal Science, 2013, 91: 2100-2714.

[25] PRUNIER A, DE BRAGANCA M M, LE DIVIDICH J. Influence of high ambient temperature on performance reproductive sows. Livestock Production Science, 1997, 52(2): 123-133.

[26] SURIYASOMBOON A, LUNDEHEIM N, KUNAVONGKRIT A, EINARSSON S. Effect of temperature and humidity on reproductive performance of crossbred sows in Thailand. Theriogenology, 2006, 65(3): 606-628.

[27] 林映才, 马现永. 热应激对母猪生产的影响与技术对策. 中国畜牧兽医学会养猪分会2006年学术年会暨第四次全国会员代表大会. 天津: 2006, 284-291.

LIN Y C, MA X Y. Effects of heat stress on sow production and technical countermeasures. Chinese Association of Animal Science and Veterinary Medicine of Pigs Branch 2006 Annual Meeting and the Fourth National Membership Congress. Tianjin: 2006, 284-291. (in Chinese)

[28] 蒲红州, 沈林園, 蒋小兵, 高菲, 雷怀刚, 朱砺. 断奶至发情间隔天数对母猪年生产力的影响. 猪业科学, 2013(6):110-112.

PU H Z, SHEN L Y, JIANG X B, GAO F, LEI H G, ZHU L. Effects of wean-to-estrus intervals on annual productivity of sows. Swine Industry Science, 2013(6):110-112. (in Chinese)

[29] KOKETSU Y, DIAL G D, KING V L. Returns to service after mating and removal of sows for reproductive reasons from commercial swine farms. Theriogenology, 1997, 47 (7): 1347-1363.

[30] 程绍明, 楼华梁, 崔绍荣. 不同环境温度对母猪发情行为的影响. 家畜生态, 2004, 25(4):60-62.

CHENG S M, LOU H L, CUI S R. Oestrus behavior of sows under different environment. Temperature. Ecology of Domestic Animal, 2004, 25(4):60-62. (in Chinese)

[31] BOMA M H, BIIKEI G. Seasonal infertility in Kenyan pig breeding units : research communication. Journal of Velerinary Research, 2006, 73: 229-232.

[32] BERTOLDO M, GRUPEN C G, THOMSON P C, EVANS, G, HOLYOAKE P K. Identification of sow-specific risk factors for late pregnancy loss during the seasonal infertility period in pigs. Theriogenology, 2009, 72 (3): 393-400.

[33] IIDA R, KOKETSU Y. Interactions between climatic and production factors on returns of female pigs to service during summer in Japanese commercial breeding herds. Theriogenology, 2013, 80 (5): 487-493.

[34] DEVILLERS N, FAARMER C. Effects of a new housing system and temperature on sow behaviour during lactation. Acta Agriculturae Scandinavica, 2008, 58 (1): 55-60.

[35] 高娅俊, 李保明, 李明丽, 林保忠, 顾招兵. 舍温对母猪行为与仔猪保温箱利用率的影响. 农业工程学报, 2011(12):191-194.

GAO Y J, LI B M, LI M L, LIN B Z, GU Z B. Impacts of room temperature on sow behavior and creep box usage for pre-weaning piglet. Transactions of the Chinese Society of Agricultural Engineering, 2011(12):191-194. (in Chinese)

[36] MUNS R, MALMKVIST J, LARSEN M L, SORENSEN D, PEDERSEN L J. High environmental temperature around farrowing induced heat stress in crated sows. Journal of Animal Science, 2016, 94(1): 377-384.

[37] CANADAY D C, SALAK-JOHNSON J L, VISCONTI A M, WANG X, BHALERAO K, KNOX R V. Effect of variability in lighting and temperature environments for mature gilts housed in gestation crates on measures of reproduction and animal well-being. Journal of Animal Science, 2013, 91: 1225-1236.

[38] QUINIOU N, RENAUDEAU D, DUBOIS S, NOBLET J. Effect of diurnally fluctuating high ambient temperatures on performance and feeding behaviour of multiparous lactating sows. Animal Science, 2000, 71 (3): 571-575.

[39] QUINIOU N, NOBLET J. Influence of high ambient temperatures on performance of multiparous lactating sows. Journal of Animal Science, 1999, 77: 2124-2134.

[40] GOURDINE J L, BIDANEL J. P, NOBLET J, RENAUDEAU D. Rectal temperature of lactating sows in a tropical humid climate according to breed, parity and season. Asian-Australia journal Animal Science, 2007, 20 (6): 832-841.

[41] MARTIN W R. Effects of heat stress on thermoregulation, reproduction and performance of different parity sows[D]. New York: Columbia: University of Missouri, 2012.

[42] HUYNH T T, AARNINK A J, VERSTEGEN M W, GERRITS W J, HEETKAMP M J, KEMP B, CANH T T. Effects of increasing temperatures on physiological changes in pigs at different relative humidities. Journal of Animal Science, 2005, 83 (6): 1385-1396.

[43] DE OLIVEIRA JUNIOR G M, FERREIRA A S, OLIVEIRA R F M, SILVA B A N, DE FIGUEIREDO E M, SANTOS M. Behavior and performance of lactating sows housed in different types of farrowing rooms during summer. Livestock Science, 2011, 141(2-3): 194-201.

[44] 程远芳, 宋代军, 曾有权, 张家骅. 中草药添加剂对生长猪抗热应激机理研究. 动物营养学报, 2006, 18(1):43-48.

CHENG Y F, SONG D J, ZENG Y Q, ZHANG J H. Studies on the mechanism of herb additive on alleviating heat stress of growing pigs. Chinese Journal of Animal Nutrition, 2006, 18(1):43-48. (in Chinese)

[45] 陈丽, 张彬, 李丽立. 热应激对母猪繁殖性能的影响及防治措施. 饲料博览, 2015(9):13-17.

CHEN L, ZHANG B, LI L L. The Effects of heat stress on reproductive performance of sow and control measures. Feed Review, 2015(9):13-17. (in Chinese)

[46] MALMKVIST J, DAMGAARD B M,PEDERSEN L J, JΦRGENSEN E, THODBERG K, CHALOUPKOVA H BRUCKMAIER R M. Effects of thermal environment on hypothalamic-pituitary-adrenal axis hormones. Journal of Animal Science, 2009, 87 (9): 2796-2805.

[47] BARB C R, ESTIENNE M J, KRAELING R R, MARPLE D N, RAMPACEK G B, RAHE C H, SARTIN J L. Endocrine changes in sows exposed to elevated ambient temperature during lactation. Domestic Animal Endocrinology, 1991, 8(1): 117-127.

[48] BOSS J W, HALE B J, GABLER N K, RHOADS R P, KEATING A F, BAUMGARD L H. Physiological consequences of heat stress in pigs. Animal Production Science, 2015, 55: 1381-1390.

[49] BAUMGARD L H, RHOADS R P. Effects of heat stress on postabsorptive metabolism and energetics. Annual Review of Animal Biosciences, 2013, 1: 311-337.

[50] VICTORIA S F M, JOHNSON J S, ABUAJAMIEH M, STOAKES S K, SEIBERT J T, COX L, KAHL S, ELSASSER T H, ROSS J W, ISOM S C, RHOADS R P, BAUMGARD L H. Effects of heat stress on carbohydrate and lipid metabolism in growing pigs. Physiological Reports, 2015, 3 (2): e12315.

[51] 邱进杰, 朱黎. 夏季母猪热应激及应对措施. 畜禽业, 2016(9): 20-21.

QIU J J, ZHU L. Heat stress and control measures of sow in summer. Livestock and Poultry Industry, 2016(9):20-21. (in Chinese)

[52] 邹兴汶. 夏季母猪热应激的危害及应对措施. 福建畜牧兽医, 2016, 38(5):42-43.

ZOU X W. Harmfulness of heat stress on sows and control measures in summer. Fujian Journal of Animal Husbandry and Veterinary Medicine, 2016, 38(5):42-43. (in Chinese)

[53] DONG H, ZHONG Y G, LIU F H, YANG K, YU J, XU J Q. Regulating effects and mechanisms of Chinese medicine decoction on growth and gut hormone expression in heat stressed pigs. Livestock Science, 2012, 143 (1): 77-84.

[54] 雷明刚, 王金勇, 夏伟, 闫之春，孟庆利，华坚青，林家勇，林万清. 传统猪舍改造工艺与新式环境调控猪舍设计及应用. 中国畜牧杂志, 2015 (12): 50-54.

LEI M G, WANG J Y, XIA W, YAN Z C, MENG Q L, HUA J Q, LIN J Y, LIN W Q. Remodeling and improvement of conventional hog production facilities and planning a climate regulated hog farms. Chinese Journal of Animal Science, 2015 (12): 50-54. (in Chinese)

[55] 曹保山, 罗小锁, 陈忠. 喷雾系统在半开放猪舍夏季降温中应用——基于重庆地区. 农机化研究, 2014 (2):24-27.

CAO B S, LUO X S, CHEN Z. The design and application of spraying air cooling system for semi-enclosed livestock houses— based on Chongqing region. Journal of Agricultural Mechanization Research, 2014 (2):24-27. (in Chinese)

[56] 汪桂英. 夏季猪舍降温措施. 畜禽业, 2016(9):18-19.

WANG G Y. Measures for cooling the pig house in summer. Livestock and Poultry Industry, 2016(9):18-19. (in Chinese)

[57] 李少宁, 何贝贝, 宋春阳. 国内规模猪场猪舍降温系统的应用现状. 猪业科学, 2016(6):90-91.

LI S N, HE B B, SONG C Y. Application status of pig house cooling system in domestic scale pig farm. Swine Industry Science, 2016(6): 90-91. (in Chinese)

[58] 付仕伦, 谢宝元. 夏季猪舍降温控制系统应用现状. 农业科学研究, 2007, 28(3):41-44.

FU S L, XIE B Y. Application study of control technique to lower the temperature for pigsty in summer. Journal of Agricultural Sciences, 2007, 28(3):41-44. (in Chinese)

[59] HUYNH T T T, AARNINK A J A, TRUONG C T, KEMP B, VERSTEGEN M W A. Effects of tropical climate and water cooling methods on growing pigs' responses. Livestock Science, 2006, 104 (3): 278-291.

[60] 王美芝, 田见晖, 刘继军, 吴中红, 张瑜. 北京市繁殖猪舍高温环境控制状况. 农业工程学报, 2011 (10):222-227.

WANG M Z, TIAN J H, LIU J J, WU Z H, ZHANG Y. Environment control status of high temperature in reproductive piggery in Beijing. Transactions of the Chinese Society of Agricultural Engineering, 2011 (10):222-227. (in Chinese)

[61] NANNONI E, WIDOWSKI T, TORREY S, FOX J, ROCHA L M, GONYOU H, WESCHENFELDER A V, GROWE T, MARTELLI G, FAUCITANO L. Water sprinkling market pigs in a stationary trailer. 2. effects on selected exsanguination blood parameters and carcass and meat quality variation. Livestock Science, 2014, 160 (Suppl. C): 124-131.

[62] FOX J, WIDOWSKI T, TORREY S, NANNONI E,BERGERON R, GONYOU H W, BROWN J A, CROWE T, MAINAU E, FAUCITANO L. Water sprinkling market pigs in a stationary trailer. 1. effects on pig behaviour, gastrointestinal tract temperature and trailer micro-climate. Livestock Science, 2014, 160 (Suppl. C): 113-123.

[63] DONG H M, TAO X P, LI Y, LIU J T, XIN H W. Comparative evaluation of cooling systems for farrowing sows. Applied Engineering in Agriculture, 2001, 17(1): 91.

[64] 高增月, 卢朝义, 赵书广. 猪舍温度控制技术应用的研究. 农业工程学报, 2006 (S2): 75-78.

GAO Z Y, LU C Y, ZHAO S G. Research on temperature control technique in pig barns. Transactions of the Chinese Society of Agricultural Engineering, 2006(S2): 75-78. (in Chinese)

[65] CARLAR A A L, LANCE C L P, PANLINE J C, VEGA R S A. Comparative performance of sows housed with and without evaporative cooling system at temperature humidity index of 73-83. Philippine Journal of Veterinary and Animal Science, 2016, 42(2): 77-84.

[66] LIAO C W. Research of the relief of heat stress on the reproductive performance of breeding pigs-a preliminary report. 2006: Tainan, Taiwan, Republic of China.

[67] BLOEMHOF S, MATHUR P K, KNOL E F, VAN DER EAAIJ E H. Effect of daily environmental temperature on farrowing rate and total born in dam line sows. Journal of Animal Science, 2013, 91 (6): 2667-2679.

[68] KIEFER C, MARTINS L P, FANTINI C C. Evaporative cooling for lactating sows under high ambient temperature. Revista Brasileira de Zootecnia, 2012, 41 (5): 1180-1185.

[69] WANG K, WANG X, Wu B. Assessment of hygrothermal conditions in a farrowing room with a wet-pad cooling system based on CFD simulation. Transactions of the ASABE, 57 (5): 1493-1500.

[70] LI H, RONG L, ZHANG G. Numerical study on the convective heat transfer of fattening pig in groups in a mechanical ventilated pig house. Computers and Electronics in Agriculture, 2017. DOI: 10.1016/j. compag.2017.08.013

[71] MASSABIE P, GRAINER R. Effect of air movement and ambient temperature on the zootechnical performance and behaviour of growing-finishing pigs. 94th ASAE Annual International Meeting, 2001: Sacramento CA USA

[72] MATTEO B, MARTINA B, FRANCESCO S G. Preliminary analysis of different cooling systems of sows in farrowing room. Journal of Agricultural Engineering, 2012, 38 (1): 53-58.

[73] PERIN J, GAGGINI T S, MANICA S, MAGNABOSCO D, BERNARDI M L, WENTZ I, BORTOLOZZO F P. Evaporative snout cooling system on the performance of lactating sows and their litters in a subtropical region. Ciência Rural, 2016, 46(2): 342-347.

[74] RENAUDEAU D, NOBLET J, DOURMAD J Y. Effect of Ambient Temperature On Mammary Gland Metabolism in Lactating Sows. Journal of Animal Science, 2003, 81: 217-231.

[75] HOVING L L, SOEDE N M, FEITSMA H, KEMP B. Lactation weight loss in primiparous sows: consequences for embryo survival and progesterone and relations with metabolic profiles. Reproduction in Domestic Animals, 2012, 47 (6): 1009-1016.

[76] JUSTINO E, DE A. NÄÄS I, CARVALHO T M R, NEVES D P, SALGADO D D. The impact of evaporative cooling on the thermoregulation and sensible heat loss of sows during farrowing. Eng Agr-Jaboticabal, 2014, 34(6): 1050-1061.

[77] PANG Z Z, LI B M, ZHENG W C, LIN B Z, LIU Z H. Effects of water-cooled cover on physiological and production parameters of farrowing sows under hot and humid climates. International Journal of Agricultural and Biological Engineering, 2016, 9(4) :178.

[78] PANG Z Z, LI B M, XIN H W, YUAN X Y, WANG C Y. Characterisation of an experimental water-cooled cover for sows. Biosystems Engineering, 2010, 105 (4): 439-447.

[79] PANG Z Z, Li B M, Xin H W, XI L, CAO W, WANG C Y, LI W. Field evaluation of a water-cooled cover for cooling sows in hot and humid climates. Biosystems Engineering, 2011, 110(4): 413-420.

[80] 李伟, 李保明, 施正香, 颜志辉, 王朝元, 庞真真. 夏季水冷式猪床的降温效果及其对母猪躺卧行为的影响. 农业工程学报, 2011, 27(11): 242-246.

LI W, LI B M, SHI Z X, YAN Z H, WANG C Y, PANG Z Z. Cooling effect of water-cooled cover on lying behavior of sows in summer. Transactions of the Chinese Society of Agricultural Engineering, 2011, 27(11): 242-246. (in Chinese)

[81] HUYNH T T T, AARNINK A J A, SPOOLDER H A M, VERSTEGEN M W A, KEMP B. Effects of floor cooling during high ambient temperatures on the lying behavior and productivity of growing finishing pigs. Transactions of the ASAE, 2004, 47 (5): 1773-1782.

[82] 李保明, 施正香, 张晓颖, 周道雷. 利用地下水对猪舍地板局部降温效果研究. 农业工程学报, 2004, 20(1): 255-258.

LI B M, SHI Z X, ZHANG X Y, ZHOU D L. Effects of cooling floor for pig house using underground water. Transactions of the Chinese Society of Agricultural Engineering, 2004, 20(1): 255-258. (in Chinese)

[83] SHI Z, LI B, ZHANG X, WANG C, ZHOU D, ZHANG G. Using floor cooling as an approach to improve the thermal environment in the sleeping area in an open pig house. Biosystems Engineering, 2006, 93(3): 359-364.

[84] BARBARI M, CONTI L. Use of different cooling systems by pregnant sows in experimental pen. Biosystems Engineering, 2009, 103(2): 239-244.

[85] SILVA B A N, OLIVEIRA R F M, DONZELE J L, FERNANDES H C, ABREU M L T, NOBLET J, NUNES C G V. Effect of floor cooling on performance of lactating sows during summer. Livestock Science, 2006, 105(1-3): 176-184.

[86] SILVA B A N, OLIVEIRA R F M, DONZELE J L, FERNANDES H C, LIMA A L, RENAUDEAU D, NOBLET J. Effect of floor cooling and dietary amino acids content on performance and behaviour of lactating primiparous sows during summer. Livestock Science, 2009, 120 (1-2): 25-34.

[87] SMITH A J, CABEZON F A, SCHINCKEL A P, MARCHANT- FORDE J N, JOHNSON J S, STWALLEY R M. 379 Initial evaluation of floor cooling on lactating sows under acute heat stress. Journal of Animal Science, 2017, 95 (suppl. 2): 183-184.

[88] CABEZON F A, SCHINCKEL A P, STEWART K R, RICHERT B T, FANDARILLAS M, MARCHANT-FORDE J N, JOHNSON J S, PERALTA W A, STWALLEY R M. 243 Young scholar presentation: heat stress alleviation in lactating sows by dietary betaine supplementation and cooling pads. Journal of Animal Science, 2017, 95 (suppl. 2): 116-117.

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