Body Weight, Intestinal Morphometry and Cell Proliferation of Broiler Chickens Submitted to Cyclic Heat Stress

Marchini, Cristiane Ferreira Prazeres; Silva, P.L.; Nascimento, Mara Regina Bueno de Mattos; Beletti, Marcelo Emı́lio; Silva, N.M.; Guimarães, E. C.

doi:10.3923/ijps.2011.455.460

Cited by 34 publications

(27 citation statements)

References 5 publications

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“…Mitchell and Carlisle (5) indicated the lower jejunal villus height in broiler chickens under HS. Marchini et al (6) showed that HS reduces the crypt depth, mucous area, villus height of the duodenum, and even intestinal length in broiler chickens. Hence, the present experiment investigated the possible positive effects of Gln on intestinal development and performance of broiler chickens under HS.…”

Section: Discussionmentioning

confidence: 99%

“…Heat stress (HS) also significantly decreases the broilers' jejunal villus height (5). It causes less crypt depth, mucous area, and villus height of the duodenum and lowers the intestinal length in broiler chickens (6). Furthermore, reduced gut motility (7), changes in intestinal microflora (8), and a depression in the gastrointestinal blood flow have been noticed in broilers under HS conditions (9).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effects of dietary glutamine supplementation on growth performance and intestinal morphology of broiler chickens reared under hot conditions

JAZIDEH¹,

Farhoomand²,

Daneshyar³

et al. 2014

Turk J Vet Anim Sci

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effects of dietary glutamine supplementation on growth performance and intestinal morphology of broiler chickens reared under hot conditions

JAZIDEH¹,

Farhoomand²,

Daneshyar³

et al. 2014

Turk J Vet Anim Sci

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“…Acute stress reduces enterocyte proliferation in chicks ) and reduces ileum crypt depth without changing villus height or the villus/crypt ratio (Burkholder et al, 2008). Nevertheless, Marchini et al (2011) found no change in enterocyte proliferation in broiler chickens subjected to daily cyclic heat stress (from 12-13 h at 38 °C between the 1 st and the 27 th day and at 40 ºC between the 28 th and the 42 nd day). Chronic heat stress led to a 19% reduction in villus height and 26% reduction in jejunum weight (Mitchell and Carlisle, 1992).…”

Section: Effects Of Heat Stress On Cell Dynamics Of Broiler Chicken Smentioning

confidence: 66%

Physiology, cell dynamics of small intestinal mucosa, and performance of broiler chickens under heat stress: a review

Marchini

Café

Araújo

et al. 2016

Rev Colomb Cienc Pecu

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Physiology, cell dynamics of small intestinal mucosa, and performance of broiler chickens under heat stress: a review ¤ Fisiología, dinámica celular de la mucosa del intestino delgado y rendimiento de pollos de engorde sometidos a estrés calórico: revisión de literatura Fisiologia, dinâmica celular da mucosa do intestino delgado e desempenho de frangos de corte submetidos ao estresse pelo calor: revisão de literatura SummaryHigh room temperature reduces production efficiency of broiler chickens. Different factors contribute to this situation: fast growth, physiological variations, and changes in the small intestine mucosa. This review aims to define the concept of heat stress and its effects on several physiological aspects related to the development of the small intestine mucosa and the performance of broiler chickens. Heat stress triggers a corticosteroid increase and a circulating triiodothyronine hormone (T 3 ) reduction, increases respiratory frequency, which triggers respiratory alkalosis, diminishes food intake, and leads to changes in the cellular dynamics of the small intestine mucosa. These changes depend on animal genotype, intensity, and duration of the stressor. Acute heat stress leads to a reduction in enterocyte proliferation and also to a decrease in crypt depth, without affecting villus height or villus/crypt ratio. On the other hand, chronic stress diminishes villus height and jejunum weight. These changes affect the capacity of broilers to digest and absorb the nutrients required for maintenance and production. ResumenUna alta temperatura ambiente disminuye la eficiencia de la producción de pollos de engorde. Diversos factores contribuyen a esta situación: crecimiento rápido, cambios fisiológicos, y anomalías de la mucosa del intestino delgado. El objetivo de la presente revisión fue definir el concepto de estrés calórico y sus efectos sobre algunos aspectos de la fisiología, en el desarrollo de la mucosa del intestino delgado, y en el rendimiento de pollos de engorde. El estrés calórico desencadena un aumento de los niveles de corticosteroides, reducción de la hormona triyodotironina (T 3 ) circulante, aumento en la frecuencia respiratoria que resulta en alcalosis respiratoria, disminuye la ingesta de alimentos y provoca cambios en la dinámica celular de la mucosa del intestino delgado. Estos cambios dependen del genotipo del animal y de la intensidad y duración de la acción del factor estresante. El estrés calórico agudo causa una disminución en la proliferación de enterocitos, reducción de la profundidad de las criptas sin cambio en la altura de las vellosidades y en la relación vellosidades/cripta. Ya el estrés crónico disminuye la altura de las vellosidades y el peso del yeyuno. Estos cambios afectan la capacidad del pollo de engorde para digerir y absorber los nutrientes para su mantenimiento y producción. Palabras clave: corticoesteroides, hallazgos microscópicos, hallazgos morfológicos, proliferación de enterocitos, tracto gastrointestinal. ResumoA temperatura ambiente elevada diminu...

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“…Several studies have shown that heat stress can affect intestinal maturation [24] . Marchini et al [3] have stated a decrease in intestinal length and a reduction in the intestinal absorption capacity of broiler chickens reared under hot climate. In the current study, cumin supplementation did not affect intestine morphometry of birds reared under high ambient temperatures (Table 4).…”

Section: Discussionmentioning

confidence: 99%

“…Heat exposure decreases broilers growth rate, which is generally due to the reduced feed intake and generate many physiological, hormonal and molecular changes [2] . Also, it has been established that chronic heat stress affect development of several internal organs such as digestive (proventriculus, gizzard, intestine) and lymphoid organs (thymus, spleen, and bursa of fabricius), which could compromise the efficacy of nutrient digestibility and absorbability as well as the immune responses of birds [2,3] .…”

Section: Introductionmentioning

confidence: 99%

Kimyon (Cuminum cyminum L.) Çekirdeği ile Beslenen ve Kronik Isı Stresine Maruz Bırakılan Broiler tavuklarda Büyüme Performansı, Karkas ve Visseral Organ Ağırlıkları, Kan Bileşenleri ve Tiroit Hormon Konsantrasyonları

Berrama¹,

Temim²,

Souames³

et al. 2017

Kafkas Univ Vet Fak Derg

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Citation of This ArticleBerrama Z, Temim S, Souames S, Ainbaziz H: Growth performance, carcass and viscera yields, blood constituents and thyroid hormone concentrations of chronic heat stressed broilers fed diets supplemented with cumin seeds (Cuminum cyminum L.). Kafkas Univ Vet Fak Derg, 23 (5): 735-742, 2017735-742, . DOI: 10.9775/kvfd.2017 AbstractThis study was conducted to determine the effect of dietary supplementation with cumin (Cuminum cyminum L.) seeds on growth performances, relative weights of carcass and viscera, haematological and biochemical parameters, and thyroid hormones concentrations of broiler chickens subjected to natural fluctuation of Algerian summer ambient temperatures. A total of 440 28-day old chickens were divided into 2 groups (5 replicates of 44 birds) with similar body weight (971±48 g): a "Control" group fed with a standard diet and a "Cumin" group receiving a basal diet supplemented with 0.2% of cumin. As a result of this study, dietary cumin supplementation did not significantly modify the growth rate and final body weights of heat-exposed chickens but it slightly improved feed conversion ratio (-7%, P=0.1). Carcass traits, viscera (liver, heart, gizzard, spleen, bursa and thymus) intestine morphology and abdominal fat of heat stressed birds did not reveal any changes by cumin inclusion compared to the control ones. Also, thyroid hormones (T3 and T4) concentrations were not significantly influenced by dietary cumin (P>0.05). However, heat-exposed chickens supplemented with cumin exhibited a significant (P<0.01) lower values of plasma glucose, cholesterol, triglycerides and total proteins and higher calcium concentrations than those of control group. Cumin dietary may be a successful means to enhancing diet conversion and reducing glaecimic, lipidaemic and calcaemic disorders in chronicallyheat exposed chickens. Keywords: Blood parameters, Broilers, Carcass, Chronic heat stress, Climate, Cuminum cyminum, Performance, Thyroid hormones Kimyon (Cuminum cyminum L.) Çekirdeği İle Beslenen ve Kronik Isı Stresine Maruz Bırakılan Broiler Tavuklarda Büyüme Performansı, Karkas ve Visseral Organ Ağırlıkları, Kan Bileşenleri ve Tiroit Hormon Konsantrasyonları ÖzetBu çalışma, Cezayir'de yaz çevre ısısının doğal dalgalanmasına maruz kalan broiler tavuklarda yeme kimyon (Cuminum cyminum L.) çekirdeği ilavesinin büyüme performansına, karkas ve vissera ağırlığı oranına, kan ve biyokimyasal parametrelere ve tiroit hormon konsantrasyonuna etkilerini belirlemek amacıyla yapıldı. Toplam 440 adet 28 günlük tavuklar vücut ağırlıkları (971±48 g) benzer olmak üzere 2 gruba (44 tavuk, 5 tekrar olarak) ayrıldı. "Kontrol grubu" standart diyet ile beslenirken, "Kimyon grubuna" % 0.2 oranında kimyon ilave edilmiş bazal diyet verildi. Elde edilen sonuçlar ısı stresine maruz kalan broiler tavuklarda diyetsel kimyon ilavesinin büyüme oranına ve nihai vücut ağırlığına önemli bir etki yapmadığını fakat az oranda yem konversiyon oranına (% -7, P=0.1) etki ettiğini gösterdi. karkas özellikleri, visseral organ (k...

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Body Weight, Intestinal Morphometry and Cell Proliferation of Broiler Chickens Submitted to Cyclic Heat Stress

Cited by 34 publications

References 5 publications

The effects of dietary glutamine supplementation on growth performance and intestinal morphology of broiler chickens reared under hot conditions

The effects of dietary glutamine supplementation on growth performance and intestinal morphology of broiler chickens reared under hot conditions

Physiology, cell dynamics of small intestinal mucosa, and performance of broiler chickens under heat stress: a review

Kimyon (Cuminum cyminum L.) Çekirdeği ile Beslenen ve Kronik Isı Stresine Maruz Bırakılan Broiler tavuklarda Büyüme Performansı, Karkas ve Visseral Organ Ağırlıkları, Kan Bileşenleri ve Tiroit Hormon Konsantrasyonları

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