Optimizing Animal Productivity under Heat Stress Conditions Using Conventional and Recent Technologies

2018 ◽  
Vol 1 (3) ◽  
pp. 4-16
Author(s):  
Alsaied Alnaimy Mostafa Habeeb
Keyword(s):  
Heat Stress ◽  
Protein Turnover ◽  
Biochemical Parameters ◽  
Environmental Temperature ◽  
Stress Conditions ◽  
High Environmental Temperature ◽  
Hot Climate ◽  
Induced Changes ◽  
Physiological And Biochemical ◽  
Hormonal Levels

When the animals exposed to the high environmental temperature most of the physiological and biochemical parameters are disturbances. The heat-induced changes in each of thermoregulatory parameters as well as water, protein turnover or balances and hormonal levels may be used for evaluation the animal's adaptability to hot climate. Detection of such phenomena in the animals could be achieved by different indices. Most of indices which may be used for detecting the heat adaptability in animals are reviewed in this article paper.

Factors affecting the response of working boars to changing environmental temperature

1991 ◽  
Vol 1991 ◽  
pp. 140-140
Author(s):  
Angela H Cliff ◽  
J H Dunne ◽  
P R English ◽  
J S M Hutchinson ◽  
O Macpherson
Keyword(s):  
Heat Stress ◽  
Adverse Effects ◽  
Environmental Temperature ◽  
Semen Quality ◽  
Sperm Quality ◽  
Sperm Concentration ◽  
Factors Affecting ◽  
High Environmental Temperature ◽  
Sudden Rise ◽  
Sperm Output

It is well established that high environmental temperature can have adverse effects on sperm concentration and the normality of sperm in the boar. Induced abnormalities include reduced motility, abnormal heads, proximal droplets, coiled and bent tails and abnormal acrosomes (Malmgren and Larsson, 1989). While all stages of spermatogenesis can be adversely affected, the primary spermatocytes are most vulnerable to these influences. Since spermatogenesis occurs over 45 days, any adverse effects of elevated ambient temperature can affect sperm quality for around 6 weeks. The maximum period of infertility appears around weeks 3 and 4 after heat stress. Reduced levels of testosterone and sometimes of LH following heat stress are implicated in these adverse effects. There is evidence that boars subjected to high constant temperature (30°C), which have become acclimatised to such, are affected less in terms of sperm output and quality (Cameron and Blackshaw, 1980) than when boars are subject to sudden major increases in temperature from fairly low levels (15 to 30 C) e.g. during the summer months (Antonyuk et al, 1983). There also appears to be large differences between boars in their ability to adapt to exposure to high environmental temperature by minimising temperature rise and avoiding adverse effects on semen quality (Cameron and Blackshaw, 1980). These workers found that boars prone to heat stress show an acute rise in body temperature in response to elevated environmental temperature and this sudden rise has a more adverse effect on semen quality than the length of exposure to the elevated temperature. There appears to be little information available on the reasons for such important between boar differences. This study was carried out to determine rectal temperature responses of boars to varying summer temperature in an intensive pig enterprise in Scotland and to attempt to determine some of the factors associated with ‘high’ and ‘low’ responding boars.

scholarly journals Effect of heat-stress on some physiological and biochemical parameters in buffaloes

2007 ◽  
Vol 6 (sup2) ◽  
pp. 1325-1328 ◽  
Author(s):  
D. Gudev ◽  
S. Popova-Ralcheva ◽  
P. Moneva ◽  
Y. Aleksiev ◽  
T. Peeva ◽  
...  
Keyword(s):  
Heat Stress ◽  
Biochemical Parameters ◽  
Physiological And Biochemical

Role of ascorbic acid in chicks exposed to high environmental temperature

1985 ◽  
Vol 58 (5) ◽  
pp. 1511-1516 ◽  
Author(s):  
S. L. Pardue ◽  
J. P. Thaxton ◽  
J. Brake
Keyword(s):  
Ascorbic Acid ◽  
Environmental Temperature ◽  
Body Weight Gain ◽  
Sheep Erythrocyte ◽  
Plasma Potassium ◽  
Temperature Plasma ◽  
High Environmental Temperature ◽  
Induced Changes ◽  
And Control

This study was conducted to determine if ascorbic acid (AA) 1) increases resistance to high environmental temperature in young chickens and 2) alters heat-induced changes in several physiological responses. Groups of male chicks received either a standard ration containing 1,000 mg/kg (ppm) of AA or the ration without AA. Chicks were brooded for 3 wk and then maintained at 22 +/- 0.8 degrees C. At 4 wk of age, both AA-supplemented and control chicks were exposed to 30 min of heating (43 +/- 0.1 degrees C and 40 +/- 2% rh) on each of 3 consecutive h in an environmentally controlled chamber. Chicks were challenged with sheep erythrocytes (1 ml, 10(5) cells, iv) 12 h postheating. Heating reduced plasma potassium, body weight gain, relative bursa and spleen weights, and anti-sheep erythrocyte levels. Heating increased cloacal temperature, plasma protein, corticosteroid levels, and mortality. AA ameliorated many of these stress-related responses.

scholarly journals Tartrazine induced changes in physiological and biochemical parameters in Swiss albino mice, Mus musculus

2017 ◽  
Vol 21 (3) ◽  
pp. 564-564 ◽  
Author(s):  
Sayema Arefin ◽  
Mohammad Salim Hossain ◽  
Shamme Akter Neshe ◽  
Md. Mamun Or Rashid ◽  
Mohammad Tohidul Amin ◽  
...  
Keyword(s):  
Mus Musculus ◽  
Biochemical Parameters ◽  
Swiss Albino Mice ◽  
Albino Mice ◽  
Induced Changes ◽  
Physiological And Biochemical

scholarly journals Effect of stocking density on behavioral traits, blood biochemical parameters and immune responses in meat ducks exposed to heat stress

2018 ◽  
Vol 61 (4) ◽  
pp. 425-432 ◽  
Author(s):  
Byung-Sung Park ◽  
Kyung-Hwan Um ◽  
Sang-O Park ◽  
Victor A. Zammit
Keyword(s):  
Heat Stress ◽  
Immune Responses ◽  
Biochemical Parameters ◽  
Density Lipoprotein ◽  
Stocking Density ◽  
Stress Conditions ◽  
Lipoprotein Cholesterol ◽  
Blood Biochemical Parameters ◽  
Behavioral Traits ◽  
Blood Biochemical

Abstract. High stocking density (HSD) and heat stress (HS) caused by climate change can lower blood homeostasis and negatively impact the behavioral traits of animals. The objective of this study was to explore the influence of stocking densities on behavioral traits, blood parameters, immune responses, and stress hormones in meat ducks (Cherry valley, Anas platyrhynchos) exposed to HS. A total of 320 meat ducks were assigned to four groups with different stocking densities using a randomized complete block design. The ducks were then reared for 42 days. The assigned density groups were as follows: (1) control group (CON, three birds m−2, normal environmental heat conditions); (2) low stocking density (LSD, three birds m−2, heat stress conditions); (3) medium stocking density (MSD, four birds m−2, heat stress conditions); and (4) high stocking density (HSD, six birds m−2, heat stress conditions). To induce HS, the environment of the poultry house was set to a temperature of 34±2∘C with a relative humidity of 70 % from 11:00 to 16:00 for the finisher period (from day 22 to day 42 of the rearing period). Concentrations of blood triacylglycerol, total cholesterol, low-density lipoprotein cholesterol (LDL-C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) were higher in the HS groups compared with the CON group, with HSD showing the highest levels (P < 0.05). The concentrations of high-density lipoprotein cholesterol (HDL-C) and glucose were lower in the HSD groups than in the CON group (P<0.05). Red blood cell (RBC) and platelet (PLT) counts were lower in HS groups compared with the CON group, with the HSD group displaying the lowest counts (P<0.05). Blood pH values were also higher in the HS groups than in the CON group, with the highest values observed in the HSD group (P<0.05). Concentrations of blood pCO2, HCO3, and TCO2 were higher in the HS groups than in the CON group, with HSD showing the lowest levels (P<0.05). The concentration of PO2 was higher in CON than in any of the HS groups, with the lowest levels found in the HSD group (P<0.05). The concentrations of blood IgG and corticosterone were increased in the HS groups compared with the CON group (P<0.05). Animal behavioral trait scores were also higher in HS groups than in the CON group (P<0.05); these scores were the highest in the HSD group. Overall, animal behavioral traits, blood biochemical parameters, and immune responses in meat ducks exposed to heat stress were highest in the HSD group, but not significantly different between the LSD or MSD groups.

Zinc-Induced Changes in Morpho-Physiological and Biochemical Parameters in Artemisia annua

2004 ◽  
Vol 48 (2) ◽  
pp. 255-260 ◽  
Author(s):  
T. Khudsar ◽  
Mahmooduzzafar Mahmooduzzafar ◽  
M. Iqbal ◽  
R.K. Sairam
Keyword(s):  
Biochemical Parameters ◽  
Artemisia Annua ◽  
Induced Changes ◽  
Physiological And Biochemical

scholarly journals Symptoms of Heat Stress in Tropical and Subtropical Regions on Farm Animals

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Alsaied Alnaimy Mostafa Habeeb
Keyword(s):  
Heat Stress ◽  
Ambient Temperature ◽  
Stress Conditions ◽  
Farm Animals ◽  
Animal Performance ◽  
Cell Functions ◽  
On Farm ◽  
Environmental Temperatures ◽  
Physiological And Biochemical

The thermal relief regions for maximum animals are ranged 4 °C and 25 °C. In tropical and subtropical countries ambient temperature surpasses 25° C and animals undergo high environmental temperatures. Most physiological and biochemical variations in animals could take place to care for essential cell functions in contradiction of stressful conditions and to certification a fast retrieval from modest hypothermic destruction. Animal performance is reduced due to extreme variations in biological purposes affected by heat-stress conditions.

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