Effect of High Incubation Temperature on the Blood Parameters of Layer Chicks
| Autor: | Irenilza de Alencar Nääs, Giuliana M Andrade-Garcia, Lizandra Amoroso, E. T. Santos, D. M. C. Castiblanco, Silvana Martinez Baraldi-Artoni, Sarah Sgavioli, R. G. Garcia, Thays Cristina Oliveira de Quadros, Carla Heloisa de Faria Domingues |
|---|---|
| Přispěvatelé: | Brazil Univ, Universidade Estadual Paulista (Unesp), Fed Univ Grande Dourados |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Biology loss of mass Hot Temperature 03 medical and health sciences Animal science lcsh:Zoology cloacal temperature lcsh:QL1-991 Eggshell Incubation lcsh:SF1-1100 Calcium metabolism lcsh:Veterinary medicine Embryogenesis 0402 animal and dairy science Embryo 04 agricultural and veterinary sciences Anatomy Body weight 040201 dairy & animal science 030104 developmental biology embryonic structures lcsh:SF600-1100 Animal Science and Zoology Base excess lcsh:Animal culture hatchability Layer (electronics) conductance |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Brazilian Journal of Poultry Science, Vol 18, Iss spe2, Pp 41-47 Revista Brasileira de Ciência Avícola, Volume: 18, Issue: spe2, Pages: 41-47, Published: DEC 2016 Brazilian Journal of Poultry Science v.18 n.spe2 2016 Brazilian Journal of Poultry Science Fundação APINCO de Ciência e Tecnologia Avícolas (FACTA) instacron:FACTA |
| ISSN: | 1516-635X |
| Popis: | Made available in DSpace on 2018-11-26T17:16:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-10-01. Added 1 bitstream(s) on 2021-07-15T15:01:35Z : No. of bitstreams: 1 S1516-635X2016000600041.pdf: 244221 bytes, checksum: 7af79ecb06a75851f7e834f2a94cff5b (MD5) Adequate environmental temperature control is essential for incubation efficiency. Layer breeder eggs (n=360) were weighed and distributed in a completely randomized experimental design with two treatments, consisting of two incubation temperatures (T1=37.5 degrees C, control; and T2=39.0 degrees C, hot), with two incubators per temperature, and 90 eggs per incubator, totaling 360 eggs. Hatchability, embryo mortality, and chick cloacal and body surface temperatures were not affected by incubation temperature. Eggs incubated at the hot temperature presented greater egg mass loss and higher eggshell conductance than those incubated at the control temperature. Layer chicks derived from eggs incubated at control temperature showed greater absolute weight, yolk-free egg mass, and heavier hearts than those from eggs submitted to heat stress during incubation. The control group presented lower base excess and ionized calcium blood levels. Incubating eggs at temperatures higher than those recommended compromises body and heart development of layer chicks and negatively affects blood ionized calcium availability, and therefore, bone mineralization during embryo development. Efficient temperature control during the incubation of fertile eggs is essential to obtain good quality layer chicks. Brazil Univ, BR-13690970 Descalvado, SP, Brazil Sao Paulo State Univ, Dept Morphol & Anim Physiol, Anim Sci, BR-14884900 Jaboticabal, SP, Brazil Fed Univ Grande Dourados, Postdoctoral Program Agribusiness, Coll Agr Sci, BR-79804970 Dourados, MS, Brazil Sao Paulo State Univ, Dept Morphol & Anim Physiol, BR-14884900 Jaboticabal, SP, Brazil Fed Univ Grande Dourados, Coll Agr Sci, BR-79804970 Dourados, MS, Brazil Sao Paulo State Univ, Dept Morphol & Anim Physiol, Anim Sci, BR-14884900 Jaboticabal, SP, Brazil Sao Paulo State Univ, Dept Morphol & Anim Physiol, BR-14884900 Jaboticabal, SP, Brazil |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|