2016
DOI: 10.1590/1806-9061-2015-0095
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Abstract: 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 °C, control; and T2=39.0 °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… Show more

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Cited by 11 publications
(9 citation statements)
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“…Except for glucose and T3, all the other biomolecules declined in the treated groups in comparison with the controlled groups in serum. Blood Hb level was half in the treated groups thus reflecting severe anaemia under thermal stress Sgavioli et al (2016). observed similar declined level of serum calcium due to thermal stress in domestic chicken.…”
supporting
confidence: 51%
See 1 more Smart Citation
“…Except for glucose and T3, all the other biomolecules declined in the treated groups in comparison with the controlled groups in serum. Blood Hb level was half in the treated groups thus reflecting severe anaemia under thermal stress Sgavioli et al (2016). observed similar declined level of serum calcium due to thermal stress in domestic chicken.…”
supporting
confidence: 51%
“…Calcium is an important second messenger within cellular signalling system (Fedrizzi, Lim, & Carafoli, ) and involves in different important biological processes (Hunn, ; Liang et al, ); therefore, lower concentration in serum could interfere with stress response processes in fish under thermal stress. Sgavioli et al () observed similar declined level of serum calcium due to thermal stress in domestic chicken. Lower amount of cholesterol (Zhu et al, ) and albumin (Carraro et al, ) in serum might be due to lower production in liver.…”
Section: Discussionmentioning
confidence: 80%
“…The levels of Ca and P increased with increasing incubation temperature and this was carried over to rearing. In another study, the concentration of ionized Ca in the blood of chicks incubated at 39°C incubation temperature was however, lower than those incubated at 37.5°C incubation temperature ( Sgavioli et al, 2016 ). Hence, a higher incubation temperature than optimum could be deleterious to a chick's bone development and leg health.…”
Section: Discussionmentioning
confidence: 88%
“…High temperatures in the first week of incubation stimulate later bone development, and high temperatures during the last week decrease the rate of bone development ( Hammond et al, 2007 ). Incubating eggs at 39°C impedes the body and heart development of layer chicks and decreases the accessibility of blood ionized Ca for bone mineralization during embryo development ( Sgavioli et al, 2016 ). This confirms that incubation temperature has an effect on bone development and could be negative or positive depending on the level of incubation temperature.…”
Section: Discussionmentioning
confidence: 99%
“…The daily feed intake and weight gain were significantly lower in the short-term warm stimulated ducks than those of the control group in the first three weeks while short-term cold stimulation improved feed conversion ratio during the whole growing period exclusively in male ducks ( Halle et al, 2012 ). According to Sgavioli et al (2016) , incubating eggs at 39°C compromises the body and heart development of layer chicks and reduces the availability of blood ionized calcium for bone mineralization during embryo development. Morita et al (2016) concluded in their study that changes in chicken stickiness and vascularity as well as changes in thyroid and growth hormone levels are the results of embryonic strategies to cope with higher or lower than normal incubation temperatures.…”
Section: Incubation Temperature and Relative Humiditymentioning
confidence: 99%