Nutrients digestibility, metabolic parameters and milk production in postpartum Holstein cows fed pomegranate (Punica granatum L.) by-products silage 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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Variation of the Polyphenolic Composition and Antioxidant Capacity of Freshly Prepared Pomegranate Leaf Infusions over One-Day Storage

Antioxidants ◽

10.3390/antiox10081187 ◽

2021 ◽

Vol 10 (8) ◽

pp. 1187

Author(s):

Manyou Yu ◽

Irene Gouvinhas ◽

Ana Barros

Keyword(s):

Antioxidant Capacity ◽

Gallic Acid ◽

Antioxidant Properties ◽

Punica Granatum ◽

Added Value ◽

Plant Materials ◽

Polyphenolic Composition ◽

Punica Granatum L ◽

Intensive Search ◽

By Products

In recent decades, an intensive search for natural and novel types of antioxidant polyphenolics has been carried out on numerous plant materials. However, the current literature has very little information on their storage stability in the form of freshly prepared infusions. This study aims to characterize the polyphenolic composition and the antioxidant capacity of pomegranate (Punica granatum L.) leaf infusions over one-day storage (analyzed at 0, 2, 4, 6, 8, and 24 h). Spectrophotometric evaluation demonstrated that the infusion presented no significant changes in the content of total phenols (131.40–133.47 mg gallic acid g−1) and ortho-diphenols (239.91–244.25 mg gallic acid g−1). The infusion also maintained high stability (over 98% and 82%, respectively) for flavonoids (53.30–55.84 mg rutin g−1) and condensed tannins (102.15–124.20 mg epicatechin g−1), with stable (>90%) potent antioxidant capacity (1.5–2.2 mmol Trolox g−1) throughout 0–24 h storage. The main decrease was observed during 0–2 h storage of flavonoids, 8–24 h storage of tannins, and 0–4 h storage of antioxidant capacity. Chromatographic analysis further revealed that 7 decreased and 11 increased compounds were found within 0–24 h storage. The good stability of the total polyphenolics and antioxidant properties might be related to the complex conversion and activity compensation among these compounds. The findings suggest that pomegranate leaf infusion could be of great interest in the valorization of high added-value by-products and in the application of green and functional alternatives in the food-pharma and nutraceutical industries.

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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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