The influences of Tylosine and licorice dietary supplementation in terms of the productive performance, serum parameters, egg yolk lipid profile, antioxidant and immunity status of laying Japanese quail under heat stress condition

AbstractUnderstanding the mechanism for heat tolerance is important for the hot pepper breeding program to develop heat-tolerant cultivars in changing climate. This study was conducted to investigate physiological and biochemical parameters related to heat tolerance and to determine leaf heat damage levels critical for selecting heat-tolerant genotypes. Seedlings of two commercial cultivars, heat-tolerant ‘NW Bigarim’ (NB) and susceptible ‘Chyung Yang’ (CY), were grown in 42 °C for ten days. Photosynthesis, electrolyte conductivity, proline content were measured among seedlings during heat treatment. Photosynthetic rate was significantly reduced in ‘CY’ but not in ‘NB’ seedlings in 42 °C. Stomatal conductivity and transpiration rate was significantly higher in ‘NB’ than ‘CY’. Proline content was also significantly higher in ‘NB’. After heat treatment, leaf heat damages were determined as 0, 25, 50 and 75% and plants with different leaf heat damages were moved to a glasshouse (30–32/22–24 °C in day/night). The growth and developmental parameters were investigated until 70 days. ‘NB’ was significantly affected by leaf heat damages only in fruit yield while ‘CY’ was in fruit set, number and yield. ‘NB’ showed fast recovery after heat stress compared to ‘CY’. These results suggest that constant photosynthetic rate via increased transpiration rate as well as high proline content in heat stress condition confer faster recovery from heat damage of heat-tolerant cultivars in seedlings stages.

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PSV-1 Effects of dietary oils on nutrient digestibility in the growing pigs under heat stress condition.

Journal of Animal Science ◽

10.1093/jas/sky404.099 ◽

2018 ◽

Vol 96 (suppl_3) ◽

pp. 44-44

Author(s):

W Yun ◽

J Lee ◽

C Lee ◽

W Kwak ◽

H Oh ◽

...

Keyword(s):

Heat Stress ◽

Stress Condition ◽

Nutrient Digestibility ◽

Growing Pigs ◽

Dietary Oils ◽

Heat Stress Condition

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Phenological Variation and its Relation with Yield in several Wheat (Triticum aestivum L.) Cultivars under Normal and Late Sowing Mediated Heat Stress Condition

Notulae Scientia Biologicae ◽

10.15835/nsb234723 ◽

2010 ◽

Vol 2 (3) ◽

pp. 51-56 ◽

Cited By ~ 18

Author(s):

Kamrun NAHAR ◽

Kamal Uddin AHAMED ◽

Masayuki FUJITA

Keyword(s):

Triticum Aestivum ◽

Heat Stress ◽

Stress Condition ◽

Triticum Aestivum L ◽

Heat Stress Condition ◽

Late Sowing

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Hydroxy-Selenomethionine Improves the Selenium Status and Helps to Maintain Broiler Performances under a High Stocking Density and Heat Stress Conditions through a Better Redox and Immune Response

Antioxidants ◽

10.3390/antiox10101542 ◽

2021 ◽

Vol 10 (10) ◽

pp. 1542

Author(s):

Hua Sun ◽

Ling Zhao ◽

Zi-Jian Xu ◽

Michele De Marco ◽

Mickael Briens ◽

...

Keyword(s):

Heat Stress ◽

Stress Condition ◽

Immune Status ◽

Protective Action ◽

Stocking Density ◽

Serum Cortisol ◽

Protein Carbonyl ◽

Intestinal Morphology ◽

Deficient Diet ◽

Heat Stress Condition

This study has determined whether hydroxy-selenomethionine (OH-SeMet) exerts a better protective action on broilers against environmental stress than sodium selenite (SS) or seleno-yeast (SY). Day-old male Cobb 500 broilers (12 cages/diet, 9 broilers/cage) were fed a selenium (Se)-deficient diet (0.047 mg/kg) supplemented with SS, SY or OH-SeMet at 0.3 mg Se/kg under a high stocking density and heat stress condition for six weeks. OH-SeMet improved the FCR and Se concentration in the tissues than SS and SY. SY and OH-SeMet both reduced the serum cortisol, T3, IL-6, IgA, IgM and LPS, more than SS, while only OH-SeMet further increased IL-10 and IgG. SY and OH-SeMet improved the intestinal morphology and increased the T-AOC, TXRND, SELENON and OCCLUDIN activities but decreased CLAUDIN2 in the jejunum than SS, while OH-SeMet further improved these values than SY. SY and OH-SeMet both increased SELENOS and TXNRD2 in the muscles than SS, and OH-SeMet further raised T-AOC, GPX4, SELENOP, SELENOW and TXNRD1, and reduced malondialdehyde and protein carbonyl in the muscles than SS and SY. OH-SeMet showed a better ability to maintain the performance and the redox and immune status of broilers under a high stocking density and heat stress challenge than SS and SY.

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