Prolonged heat stress and wool growth in sheep

1967 ◽  
Vol 11 (3) ◽  
pp. 297-300
Author(s):  
C. J. Thwaites
Keyword(s):  
Heat Stress ◽  
Wool Growth ◽  
Prolonged Heat

scholarly journals Spray-Dried Plasma Improves Body Weight, Intestinal Barrier Function, and Tibia Strength during Experimental Constant Heat Stress Conditions

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2213
Author(s):  
Jared Ruff ◽  
Thaina L. Barros ◽  
Joy Campbell ◽  
Ricardo González-Esquerra ◽  
Christine N. Vuong ◽  
...  
Keyword(s):  
Heat Stress ◽  
Intestinal Barrier ◽  
Fluorescein Isothiocyanate ◽  
Serum Levels ◽  
Negative Control ◽  
Intestinal Barrier Function ◽  
Negative Consequences ◽  
Fluorescein Isothiocyanate Dextran ◽  
Prolonged Heat ◽  
Spray Dried

The aim of this study was to see how spray-dried plasma (SDP) supplementation affected broiler chicken performance, intestinal permeability, and bone strength during persistent heat stress. One-day-old chicks (n = 480) were randomly assigned into twelve environmental corrals; four thermoneutral (TN-negative control, maintained at 24 °C from d 21–42); four heat stress (HS, exposed to 35 °C from d 21–42); and four heat stress treated with 2% SDP in the feed until d 28 followed by 1% SDP until d 42 (HS-SDP). The performance and serum levels of fluorescein isothiocyanate-dextran (FITC-d) were evaluated at d 21, 28, 35, and 42. The tibias strength was evaluated on d 21 and 42. The increment in chicken temperature (p < 0.05) was observed two h following the increase in environmental temperature in both HS groups and was associated with decreased performance parameters compared with the TN group. At d 42 of age, the chickens exposed to HS had an impaired gut permeability and decreased tibia strength compared to the TN group (p < 0.05). However, partially feeding SDP mitigated these adverse effects significantly. These findings imply that using SDP strategically during stressful times, such as prolonged heat stress, may help mitigate its negative consequences.

scholarly journals Performance of multiple turfgrass species during prolonged heat stress and recovery in a controlled environment

Crop Science ◽  
2020 ◽  
Vol 60 (6) ◽  
pp. 3344-3361
Author(s):  
Florence Breuillin‐Sessoms ◽  
Eric Watkins
Keyword(s):  
Heat Stress ◽  
Controlled Environment ◽  
Prolonged Heat

Sheathed Panicle Phenotype (cv. Sathi) Maintains Normal Spikelet Fertility and Grain Filling under Prolonged Heat Stress in Rice

Crop Science ◽  
2018 ◽  
Vol 58 (4) ◽  
pp. 1693-1705 ◽  
Author(s):  
Lovely M. F. Lawas ◽  
Raju Bheemanahalli ◽  
Celymar A. Solis ◽  
S. V. Krishna Jagadish
Keyword(s):  
Heat Stress ◽  
Grain Filling ◽  
Spikelet Fertility ◽  
Prolonged Heat

Pathomorphism of Hantavirus infection under prolonged heat stress

2016 ◽  
Vol 78 (6) ◽  
pp. 38 ◽  
Author(s):  
L. M. Somova ◽  
N. G. Plekhova ◽  
I. N. Lyapun ◽  
E. I. Drobot ◽  
G. G. Kompanets
Keyword(s):  
Heat Stress ◽  
Hantavirus Infection ◽  
Prolonged Heat

Oxidative stress and physiological damage under prolonged heat stress in C3 grass Lolium perenne

2011 ◽  
Vol 57 (2) ◽  
pp. 101-106 ◽  
Author(s):  
Wagdi Saber Soliman ◽  
Masahiro Fujimori ◽  
Kazuhiro Tase ◽  
Shu-ichi Sugiyama
Keyword(s):  
Oxidative Stress ◽  
Heat Stress ◽  
Lolium Perenne ◽  
Prolonged Heat

Heat stress problem in dairy farming

2020 ◽  
pp. 10-11
Author(s):  
Ekaterina N. Rud ◽  
◽  
Elena V. Kuzminova ◽  
Marina P. Semenenko ◽  
Andrey A. Abramov ◽  
...  
Keyword(s):  
Heat Stress ◽  
Negative Impact ◽  
Environmental Parameters ◽  
Animal Husbandry ◽  
The Body ◽  
Environment Analysis ◽  
Temperature And Humidity ◽  
Humidity Index ◽  
Krasnodar Region ◽  
Prolonged Heat

In the context of the industrial survival of animal husbandry, taking into account the climatic characteristics of Krasnodar region, climate is considered as a heat stress, the result of an imbalance between the intake of heat from the environment and its release by the body. To assess the risks of occurrence and severity of heat stress in cattle, it is necessary to take into account not only the ambient temperature, but also humidity indicators. The temperature and humidity index provides for these two variables and allows us to assess the need for cooling of animals. The article provides information on the possibilities of occurrence and impact of heat stress due to the temperature-humidity state of the environment. Analysis of the reporting data of the Veterinary Department of Krasnodar region and the number of industries in Krasnodar region and cattle sampling rates from 2017 to 2019 demonstrates an increase in the number of abortions and youth losses during the third quarter when the temperature of the environment reaches its maximum. With this in mind, to increase the adaptability of animals under prolonged heat stress, it is necessary to regularly monitor the environmental parameters (use of thermometers and hygrometers to assess the temperature and humidity index), as well as plan protective measures (adapted feeding technology, specialized additives, good bulky feed), which will help to minimize the negative impact of hyperthermia on the economy of livestock production.

scholarly journals Proteomic analysis of Lactobacillus casei GCRL163 cell-free extracts reveals a SecB homolog and other biomarkers of prolonged heat stress

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0206317 ◽  
Author(s):  
Kayode T. Adu ◽  
Richard Wilson ◽  
David S. Nichols ◽  
Anthony L. Baker ◽  
John P. Bowman ◽  
...  
Keyword(s):  
Heat Stress ◽  
Proteomic Analysis ◽  
Lactobacillus Casei ◽  
Prolonged Heat

scholarly journals Differential Physiological Responses and Genetic Variations in Fine Fescue Species for Heat and Drought Stress

2017 ◽  
Vol 142 (5) ◽  
pp. 367-375 ◽  
Author(s):  
Jinyu Wang ◽  
Patrick Burgess ◽  
Stacy A. Bonos ◽  
William A. Meyer ◽  
Bingru Huang
Keyword(s):  
Heat Stress ◽  
Drought Stress ◽  
Drought Tolerance ◽  
Heat Tolerance ◽  
Photochemical Efficiency ◽  
Physiological Parameters ◽  
Festuca Rubra ◽  
Relative Water ◽  
Prolonged Heat ◽  
Fine Fescue

Summer decline is typically characterized by heat and drought stress and is a major concern for fine fescue species (Festuca). The objectives of this study were to examine whether heat or drought stress is more detrimental, and to determine the genotypic variations in heat and drought tolerance for fine fescues. A total of 26 cultivars, including seven hard fescues (Festuca trachyphylla), eight chewings fescues (Festuca rubra ssp. commutate), seven strong creeping red fescues (Festuca rubra ssp. rubra), two sheep fescues (Festuca ovina ssp. hirtula), and two slender creeping red fescues (Festuca rubra ssp. littoralis) were subjected to prolonged heat or drought stress in growth chambers. Several physiological parameters, including turf quality (TQ), electrolyte leakage (EL), photochemical efficiency (Fv/Fm) chlorophyll content (Chl), and relative water content (RWC) were measured in plants exposed to heat or drought stress. The results indicated that heat stress was more detrimental than drought stress for fine fescue species. Based on TQ and major physiological parameters (EL and Fv/Fm) under heat stress, several cultivars with good heat tolerance were selected, including ‘Blue Ray’, ‘Spartan II’, ‘MN-HD1’, ‘Shoreline’, ‘Navigator II’, ‘Azure’, ‘Beacon’, ‘Aurora Gold’, ‘Reliant IV’, ‘Marco Polo’, ‘Garnet’, ‘Wendy Jean’, ‘Razor’, and ‘Cindy Lou’. Based on TQ and major physiological parameters (EL, RWC, and Fv/Fm) under drought stress, several cultivars with good drought tolerance were selected, including ‘Spartan II’, ‘MN-HD1’, ‘Reliant IV’, ‘Garnet’, ‘Azure’, and ‘Aurora Gold’. These cultivars could be used in hot, dry, or both environments and as breeding germplasm for developing heat tolerance, drought tolerance, or both.

Sign in / Sign up

Export Citation Format

Share Document