&lt;b&gt;The effects of protein, amino acid, and dietary electrolyte balance on broiler chicken performance and blood parameters under heat stress

Saki, A. A.; Maleckey, Mostafa; Johari, Rahele; Goudarzi, Sara; Abdolmaleki, M

doi:10.4025/actascianimsci.v38i3.30747

Cited by 7 publications

(3 citation statements)

References 22 publications

(36 reference statements)

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“…Indicators of metabolism of blood proteins of broiler chickens against the background of combined stress when included in the diet of "Reasil Humic Vet" + "Laktin" and "Reasil Humic Health" (М ± m, n = 5) While analyzing the data, it should be noted that in the blood of chickens of C, R1 and R2 groups in 3 days after exposure to stress, which corresponded to the stage of anxiety, the total protein content was within 24.63 ± 2.94 g/l, which corresponded to the physiological norm for this age of the poultry according to the literature (Saki et al, 2016). The content of albumin in the blood plasma of chickens of group C was 36.01 ± 1.58 %, in chickens R1 and R2 of the group there was a tendency to increase their content with probable differences in the blood of poultry of group R2, which was 14.7 % (P < 0.05) compared with the control.…”

Section: Tablementioning

confidence: 58%

Dynamics of individual indicators of protein metabolism in the body of broiler chickens on the background of combined stress when included in the diet “Reasil Humic Vet” + “Laktin” and “Reasil Humic Health”

Stoyanovskyy

Shevchuk

Kolomiiets

et al. 2020

Ukr. Jour. of Vet. and Agr. Sci.

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The body of broiler chickens is characterized by a high metabolism, which promotes rapid growth and development, but their performance indicators are largely related to housing conditions, which are known to include a number of technological stressors. With the development of stress in the body of poultry changes the course of metabolic processes, which causes changes in all types of metabolism, including protein. The aim of the study was to determine the changes in individual indicators of protein metabolism in the body of broiler chickens against the background of combined stress when included in the diet “Reasil Humic Vet” + “Laktin” and “Reasil Humic Health”. At 13th day of life, all clinically healthy poultry were exposed to combined stress – revaccination (intranasal Newcastle disease) plus cold stress (for 60 minutes by air conditioning and 5 °C in the vivarium). Material for research was selected for 3 days after the action of the stress factor (stage of anxiety), 13, 20 and 26 days after the action of the stress factor (the resistance stage). The material for the study was blood plasma, which determined the concentration of total protein, as well as the content of albumin, globulin fraction (α1, α2, β, γ). It was found that 3 days after the action of stress in chickens of Control group the development of adaptive reactions is manifested by the stability of the total protein content and redistribution of the fractional composition of plasma globulins in the form of increased albumin and α2-globulins. At different stages of development of the stage of resistance in birds of Control group, the content of total protein decreases by an average of 14.6 % due to the content of albumin by 6.9 % and α2-globulins – by 15.9 %, against the background of increasing α1- and γ-globulins by 23.1 and 33.5 % with the stabilization of individual studied indicators at the final stages of development of the resistance stage. The use in the diet of broilers feed “Reasil Humic Vet”, probiotic feed supplement “Laktin”, feed “Reasil Humic Health” under the influence of complex stress helps to increase the intensity of protein metabolism in poultry with the development of adaptation syndrome, as evidenced by the growth of total protein on average by 37.8 % (P < 0.05) and albumin – by 17.0 % (P < 0.05), which indicates an increase in the intensity of protein-synthesizing properties of the organism. In different periods of stress in the blood of broiler chickens Research groups there is an increase in the ratio of individual protein fractions, especially the content of γ-globulins - an average of 21.3 % (P < 0.05), which indicates an increase in the immune status of their body with a predominance of numerical values in the Research 1 group of poultry.

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Section: Tablementioning

confidence: 58%

Dynamics of individual indicators of protein metabolism in the body of broiler chickens on the background of combined stress when included in the diet “Reasil Humic Vet” + “Laktin” and “Reasil Humic Health”

Stoyanovskyy

Shevchuk

Kolomiiets

et al. 2020

Ukr. Jour. of Vet. and Agr. Sci.

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“…Altas temperaturas reducen el consumo de alimento y la tasa de crecimiento. El ofrecimiento de dietas alta en PB para pollos sometidos a estrés por calor tiene un efecto perjudicial en la ganancia de peso, conversión alimenticia (Saki et al, 2016) y composición de canal. Dietas con niveles de PB bajos para pollos en estrés por calor aumenta la deposición de grasa en los cortes (Berres, 2010).…”

Section: Exigencia De Proteínaunclassified

Exigencias nutricionales de proteína bruta y energía metabolizable para pollos de engorde

Torres

2018

rev.investig.agrar.ambient.

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Esta revisión fue realizada con el objetivo de acopiar información de los recientes avances sobre las exigencias de proteína bruta y energía metabolizable para pollos de engorde. En la actualidad el concepto de exigencia de proteína bruta, está siendo sustituido por proteína ideal, especificando los niveles de aminoácidos.Las exigencias nutricionales para pollos de engorde mencionadas por NRC (1994), difieren a las exigencias nutricionales determinadas para pollos en condiciones tropicales. El ofrecimiento de raciones atendiendo las necesidades nutricionales para las diferentes etapas de la vida del pollo, permite alcanzar un buen desempeño zootécnico.

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“…Monovalent electrolytes (e.g., Na + , K + , and Cl − ) are the key minerals involved in osmotic and acid-base balance, which is also considered as electrolyte balance. Recent studies have shown that broilers exposed to heat stress had decreased blood K + and Na + levels and increased Cl − levels, which resulted in low electrolyte balance in the blood [15,21]. Such an imbalance disrupts the acid-base balance, thereby affecting several metabolic functions and the overall performance of chickens [22].…”

Section: Introductionmentioning

confidence: 99%

Effects of Heat Stress on the Laying Performance, Egg Quality, and Physiological Response of Laying Hens

Kim,

Ryu,

Lee

et al. 2024

Animals

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As high temperature and relative humidity (RH) are the main environmental factors causing heat stress, the temperature–humidity index (THI) serves as an indicator of heat stress in livestock animals. This study aimed to determine the effects of heat stress on the laying performance, physiological responses, egg quality, and blood profile of laying hens by subjecting them to environmental conditions with varying THI levels (68–85) for 28 days. The indicators of laying performance, such as feed intake (−30%) and egg production rate (−11%), significantly decreased in the hens exposed to severe heat stress (33 °C, 66% RH) compared to those exposed to thermoneutral conditions (21 °C, 68% RH). Moreover, severe heat stress reduced the egg yolk color, eggshell thickness and strength, and Haugh units of the eggs produced by the laying hens. Furthermore, a significant increase in serum K+ and a decrease in Na+ levels were observed in the hens subjected to severe heat stress compared with those under thermoneutral conditions. Our results indicate that heat stress alters the physiological responses and metabolism of laying hens, resulting in a lower egg quality and production rate.

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<b>The effects of protein, amino acid, and dietary electrolyte balance on broiler chicken performance and blood parameters under heat stress

Cited by 7 publications

References 22 publications

Dynamics of individual indicators of protein metabolism in the body of broiler chickens on the background of combined stress when included in the diet “Reasil Humic Vet” + “Laktin” and “Reasil Humic Health”

Dynamics of individual indicators of protein metabolism in the body of broiler chickens on the background of combined stress when included in the diet “Reasil Humic Vet” + “Laktin” and “Reasil Humic Health”

Exigencias nutricionales de proteína bruta y energía metabolizable para pollos de engorde

Effects of Heat Stress on the Laying Performance, Egg Quality, and Physiological Response of Laying Hens

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