The effect of different levels of dietary Spirulina platensis microencapsulated microalgae on nutrient digestibility, immune response, and some blood parameters in broiler chickens

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Online ISSN: 2423-7949

Iaranian Journal of Animal Science

Homepage: https://ijas.ut.ac.ir/

University of Tehran Press

The effect of different levels of dietary Spirulina platensis microencapsulated microalgae on nutrient digestibility, immune

response, and some blood parameters in broiler chickens

Hosna Hajati¹^ | Matin Shakouri²

1. Corresponding Author, Department of Animal Science, Research & Education Center for Agriculture and Natural Resources, East Azarbaijan, Tabriz, Iran. E-mail: [email protected]

2. Caspian Sea Ecology Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Sari, Iran. E-mail: [email protected]

Article Info ABSTRACT

Article type:

Research Article

Article history:

Received: April 4, 2022 Received in revised form:

May 18, 2022

Accepted: May 28, 2022 Published online: April 15, 2023

Keywords:

Antibody titer, broiler chicken, microencapsulation, Spirulina.

This study was done to evaluate the microencapsulated Spirulina powder on nutrient digestibility, immune response, and some blood parameters in broiler chickens. A total of 160 one-day old Ross 308 broiler chicks (mixed-sex) were assigned to a completely randomized design with four treatments, 4 replicates, and 10 chicks in each replicate. Experimental treatments included basal diet (without additive), basal diet +0.3, 0.6 or 0.9% microencapsulated Spirulina powder. Results showed that using all the levels of dietary microencapsulated Spirulina powder increased primary antibody titer against sheep red blood cell compared to control group. Feeding microencapsulated Spirulina powder at the levels of 0.3 or 0.6% increased IgM, IgG, and total antibody titer on d 35.

Treatments contained microencapsulated Spirulina powder caused lower VLDL compared to control group (P<0.05). Adding 0.6 or 0.9% microencapsulated Spirulina powder to diet decreased LDL compared to control group. The birds fed with treatment contained 0.6% microencapsulated Spirulina powder had higher level of red blood cell compared to control group. The results of the present study showed that feeding microencapsulated Spirulina powder promoted humoral immune system, decreased the levels of VLDL, LDL, and increased the percentage of red blood cell in broiler chickens.

Cite this article: Hajati, H., & Shakouri, M. (2023). The effect of different levels of dietary Spirulina platensis microencapsulated microalgae on nutrient digestibility, immune response, and some blood parameters in broiler chickens. Iranian Journal of Animal Science, 54 (1), 61-75. DOI: https://doi.org/10.22059/ijas.2022.339759.653875

DOI: https://doi.org/ 10.22059/ijas.2022.339759.653875

Extended Abstract Introduction:

Using antibiotic growth promoters as feed additives has been banned by the European Union in 2006 due to cross- resistance against pathogens and residues in tissues, so poultry nutritionists are searching for organic safe functional alternatives to antibiotics. Microalgae such as Spirulina platensis have high nutritional value and may consider as a feed ingredient in organic feeding poultry.

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Online ISSN: 2423-7949

Iaranian Journal of Animal Science

University of Tehran Press

Goal:

This study was done to evaluate the microencapsulated Spirulina powder on nutrient digestibility, immune response, and some blood parameters in broiler chickens.

Material and methods:

A total of 160 one-day old Ross 308 broiler chicks (mixed-sex) were assigned to a completely randomized design with four treatments, 4 replicates, and 10 chicks in each replicate. Experimental treatments included basal diet (without additive), basal diet +0.3, 0.6 or 0.9% microencapsulated Spirulina powder.

Results:

Results showed that using all the levels of dietary microencapsulated Spirulina powder increased primary antibody titer against sheep red blood cell compared to control group. Feeding microencapsulated Spirulina powder at the levels of 0.3 or 0.6% increased IgM, IgG, and total antibody titer on d 35. Treatments contained microencapsulated Spirulina powder caused lower VLDL compared to control group (P<0.05). Adding 0.6 or 0.9% microencapsulated Spirulina powder to diet decreased LDL compared to control group. The birds fed with treatment contained 0.6%

microencapsulated Spirulina powder had higher level of red blood cell compared to control group.

Conclusion:

The results of the present study showed that feeding microencapsulated Spirulina powder promoted humoral immune system, decreased the levels of VLDL, LDL, and increased the percentage of red blood cell in broiler chickens.

Keywords: Antibody titer, broiler chicken, microencapsulation, Spirulina.

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80 / 5 ^c 00

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14 / 7 ^b 10

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69 / 7 ^a 45

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154 / 0 093

/ 0 083

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014 / 0 210

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b9 87

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18 /

a10 54

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/

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45 /

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10 / 10 23

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34 / 127

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30 / 10 52

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72 / 9

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32 / 10 41

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47 / 8

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al., 2004

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Œ 6

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6 . G' Abouelezz, F. M. K. (2017). Evaluation of spirulina algae (Spirulina platensis) as a feed

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