Effect of heat stress on the pituitary and testicular development of Wenchang chicks

Chen, Z.; Zhang, J. R.; Zhou, Yongwei; Chen, Liang; Jiang, Ying-Ya

doi:10.5194/aab-58-373-2015

Cited by 20 publications

(21 citation statements)

References 15 publications

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“…During the experiment, chicks were hosted in large cages in the feeding house (7 × 3.5 × 3.5 m) and maintained at 30.6 ± 1.1°C and relative humidity of 65 ± 6%. At 12:00-14:00 h every day, chicks in the HS group were placed in a large-capacity artificial climate chamber with temperature of 40 ± 0.5°C and humidity of 70-80% for heat treatment and chicks in the CK group were placed in the same chamber without HS treatment for 2 h, and then returned to their rearing cages (Chen et al 2015b). This experiment was conducted with ethics approval from the Hainan Normal University Animal Experimentation Ethics Committee.…”

Section: Methodsmentioning

confidence: 99%

Effects of heat stress on somatostatin and some related immune factors in the small intestine of Wenchang chicks

Chen¹,

Jiang²,

Zhou³

et al. 2017

CZECH J ANIM SCI

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: Effects of heat stress on somatostatin and some related immune factors in the small intestine of Wenchang chicks. Czech J. Anim. Sci., 62,[446][447][448][449][450][451][452][453][454][455] To investigate the effects of heat stress (HS) on developmental changes in immune functions of chick intestinal mucosa, one-day-old broiler chicks were randomly assigned into control check (CK) and heat-stressed (HS) groups and raised under indoor temperature. The chicks in HS group were subjected to HS at 40 ± 0.5°C from 12:00 to14:00 h every day. Intestinal mucosa samples were collected weekly during 6 weeks, and the effects of HS on somatostatin and its related immune factors were examined using immunohistochemical, physiological, and biochemical methods. The results showed that HS obviously increased the amount and integral optical density of somatostatin positive cells, somatostatin content, as well as IFN-γ and IL-2 levels in the small intestine, and these increases reached statistical significance in some intestinal segments (P < 0.05). In addition, IgG, IgA, and IgM levels fluctuated in different intestinal segments and their levels in jejunum, duodenum, and ileum in 6-week-old chicks were significantly lower in HS group than in CK group (P < 0.05). The contents of immune-related enzymes also fluctuated, but the activities of acid phosphatase, lysozyme, and glutathione reductase in duodenum and jejunum were lower in 6-week-old chicks in HS group than in CK group, some reaching statistical significance (P < 0.05). Growth hormone (GH) and HSP70 contents in multiple intestinal segments in 6-week-old chicks were significantly higher in HS group than in CK group (P < 0.05). The results indicate that (1) HS could increase the expression and secretion of somatostatin and affect the normal development of immunoglobulins, cytokines, and immune-related enzymes in the small intestine, and thereby impact the chicks' intestine immune function; (2) GH and HSP70 in the small intestine were involved in self-protection mechanisms against HS-induced intestinal injury and somatostatin regulation might be one of the important components.

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Section: Methodsmentioning

confidence: 99%

Effects of heat stress on somatostatin and some related immune factors in the small intestine of Wenchang chicks

Chen¹,

Jiang²,

Zhou³

et al. 2017

CZECH J ANIM SCI

Self Cite

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“…It's known, heat stress significantly decreases the plasma levels of IgA, IgG and IgM in chickens (Chen, 2015). This decrease of antibody titer with heat stress be credited to the arrival of a continued elevated level of corticosterone bringing about diminished IgM and IgG combination (Habibian et al, 2013).…”

Section: The Immunoglobulin Igg Igm and Sheep Red Blood Cells (Srbcmentioning

confidence: 99%

Effect of Gibberellic Acid and Royal Jelly Injection on Some Productive, Reproductive and Physiological Traits in Matrouh Chickens Strain During Summer Season.

Ezzat¹,

Rizk²,

Mohamed³

et al. 2020

Journal of Productivity and Development

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A total of 168 laying hens and 21 cocks of Matrouh local strain at 24 weeks of age (At 43.93 % egg production)was used in a completely randomized design among seven treatment groups with three replicates per treatment group (8 hens and 1 cock per replicate).Birds are biweekly injected, up to 36 weeks of age (12 weeks). The 1 st treatment group of birds were injected with saline solution 0.9% only and served as control, The birds in 2 nd and 3 rd treatment groups, were injected subcutaneously with 100 and 200 μg Gibberellic acid (GA3)/kg body weight (BW), respectively. The 4 th and 5 th treatment groups were injected with50 and 100 μg Royal Jelly (RJ)/kg BW, respectively. The 6 th treatment group was injected subcutaneously with 50μg GA3 plus25μg RJ/kg BW. The 7 th treatment group was injected subcutaneously with 100 μg GA3 plus 50μg RJ/kg BW. The same 7 treatment groups were used also, on 21 cocks in individual batteries to take semen quality. The obtained results revealed that, Injection with 100 , 200 μg GA3 or50 , 100 μg RJ /kg BW of Matrouh chicks improved significantly (P<0.05 and P<0.01) body weight changes (BWC),fertility eggs %, hatchability/total eggs % and chicks hatch weight (g), sperm-cell concentration (X 10 9 /ml) and sperm motility (%), while significantly (P<0.05) decreased each of dead spermatozoa (%), sperm abnormalities (%), and acrosomal damage (%) as compared with the control group. Layers injected by 100 , 200 μgGA3/kg body weight showed significantly (P≤0. 05 and P≤0. 01) improved feed conversion ratio (FCR), egg production (EP)% and egg mass (EM) compared with those the groups 170 EZZAT et al. 50 , 100 μg RJ /kg BW and control groups through the whole of the experimental period. Injection with 50, 100 μg of RJ /kg BW caused to increase significantly (P≤0. 01) in IgG and IgM and primary and secondary antibody titer against sheep red blood cells (SRBC's) in hens as compared with100, 200 μg of GA3and the control group. Injection 100 , 200 μg of GA3 /kg BW caused to increase significantly (P≤0. 05 and P≤0. 01) in concentration of estrogen in hens and testosterone of cocks, FSH and LH in hens and cocks when compared with those in control group. In conclusion, injection with 100, 200 μg GA3 /kg BW improved productive, reproductive and physiological performance of males and females Matrouh. Furthermore, the RJ-treated groups had significantly improved immune responses in hens and the quality of semen parameters in cocks under summer season conditions in Egypt.

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“…Реалізація генетичного потенціалу та індивідуальна реактивність організму птиці прямо корелює з рівнем їх адаптаційнокомпен саторних реакцій до мінливих умов навколишнього середовища та дії стресфакторів [1]. Провідне місце у розвитку стресової відповіді належить сим патоадреналовій і гіпоталамо-гіпофізарно-адрено кортикотропній системам (ГГАК), функціонування яких спричинює зміни інтенсивності перебігу метаболічних ре акцій на всіх рівнях організації, вклю ча ючи систе ми органів [2,3].…”

Section: вступunclassified

Changes in the morphofunctional state of endocrine and immune systems of industrial growth quails under stress

Stoyanovskyy¹,

Gzhytsky²,

Garmata³

et al. 2018

Fiziol Zh

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Effect of heat stress on the pituitary and testicular development of Wenchang chicks

Cited by 20 publications

References 15 publications

Effects of heat stress on somatostatin and some related immune factors in the small intestine of Wenchang chicks

Effects of heat stress on somatostatin and some related immune factors in the small intestine of Wenchang chicks

Effect of Gibberellic Acid and Royal Jelly Injection on Some Productive, Reproductive and Physiological Traits in Matrouh Chickens Strain During Summer Season.

Changes in the morphofunctional state of endocrine and immune systems of industrial growth quails under stress

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