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  1. Article: The Interactive Impacts of Corn Particle Size and Conditioning Temperature on Performance, Carcass Traits, and Intestinal Morphology of Broiler Chickens.

    Ghasemi-Aghgonbad, Asadollah / Olyayee, Majid / Janmohammadi, Hossein / Abdollahi, Mohammad Reza / Kianfar, Ruhollah

    Animals : an open access journal from MDPI

    2024  Volume 14, Issue 5

    Abstract: This study aimed to investigate the interactions between corn particle size (PS) and conditioning temperature (CT) on the performance, carcass traits, intestinal morphology, and immune responses in broilers fed a corn-soybean meal-based diet. A total of ... ...

    Abstract This study aimed to investigate the interactions between corn particle size (PS) and conditioning temperature (CT) on the performance, carcass traits, intestinal morphology, and immune responses in broilers fed a corn-soybean meal-based diet. A total of 360 one-day-old male broiler chicks (Ross 308) were randomly allocated into six dietary treatments in a 2 × 3 factorial arrangement, consisting of two corn PS (finely ground with geometric mean diameter (GMD) of 357 µm (PS
    Language English
    Publishing date 2024-03-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani14050818
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Supplementation of broiler chicken diets with bovine lactoferrin improves growth performance, histological parameters of jejunum and immune‐related gene expression

    Olyayee, Majid / Javanmard, Arash / Janmohammadi, Hossein / Kianfar, Ruhollah / Alijani, Sadegh / Mir Ghelenj, Seyed Ali

    Journal of Animal Physiology and Animal Nutrition. 2023 Jan., v. 107, no. 1 p.200-213

    2023  

    Abstract: The aim of this study was to investigate the influence of dietary supplementation of bovine lactoferrin (bLF) on growth performance, carcass traits, histomorphology of jejunum, immune function and hepatic and splenic gene expression of interferon‐gamma ( ... ...

    Abstract The aim of this study was to investigate the influence of dietary supplementation of bovine lactoferrin (bLF) on growth performance, carcass traits, histomorphology of jejunum, immune function and hepatic and splenic gene expression of interferon‐gamma (IFN‐γ) and interleukine‐2 (IL‐2) in broiler chickens. A total of 240 one‐day‐old Ross 308 male broiler chickens were randomly allotted into six dietary treatments with four replicate pens (10 chicks per pen) and fed experimental diet in 3 feeding phases (starter: d 0–10, grower: d 11–24 and finisher: d 25–42). The experimental treatments were (1) corn–soya bean meal‐based basal diet (control), (2–5) basal diet supplemented with 200, 400, 600, 800 mg/kg bLF, respectively, and (6) basal diet supplemented with 200 mg/kg oxytetracycline (OTC). The average body weight gain (ABWG) of broilers fed 800 mg/kg bLF was 8.48% higher than those fed a corn–soybean meal‐based diet during the starter period (d 0–10) (linear effect, p = 0.002; quadratic effect, p = 0.24). Average daily feed intake (ADFI) and the feed conversion ratio (FCR) were not affected (p>0.05) by bLF supplementation. At 42 days of age, the breast meat percentage and carcass yield of broilers fed 800 mg/kg bLF compared with the control group significantly increased by 9.51% and 6.03% respectively (p < 0.05). Compared with the chicks fed the control diet, the chicks fed diets supplemented with bLF had higher villus height, muscle thickness and villus surface area (p > 0.05). Dietary bLF inclusion increased the total immunoglobulin (IgT) titre against sheep red blood cells (SRBCs) antigen (linear effect, p = 0.031; quadratic effect, p = 0.035) and improved the phytohaemagglutinin‐P (PHA‐P)‐skin test of broilers. Compared with the control, bLF enhanced the gene expression of IFN‐γ in spleen (p = 0.048, linear effect, p = 0.009; quadratic effect, p = 0.093) and liver (p = 0.012, linear effect, p = 0.008; quadratic effect, p = 0.01) and IL‐2 expression in spleen (p = 0.021, linear effect, p = 0.026; quadratic effect, p = 0.103). The bLF supplementation had no effect on IL‐2 gene expression in liver (p > 0.05, linear effect, p = 0.213; quadratic effect, p = 0.159). In conclusion, we found that supplementation of broiler diets with 800 mg/kg bLF can improve the growth performance, carcass yield, cell‐mediated and antibody‐mediated immune responses and enhance the IL‐2 and IFN‐γ gene expression of broilers.
    Keywords antigens ; beans ; blood ; body weight changes ; breast meat ; broiler chickens ; carcass yield ; dietary supplements ; experimental diets ; feed conversion ; feed intake ; gene expression ; growth performance ; histology ; immune response ; immunoglobulins ; interferon-gamma ; interleukin-2 ; jejunum ; lactoferrin ; liver ; males ; muscles ; oxytetracycline ; sheep ; spleen ; surface area ; villi
    Language English
    Dates of publication 2023-01
    Size p. 200-213.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 232729-6
    ISSN 0931-2439
    ISSN 0931-2439
    DOI 10.1111/jpn.13683
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: The Optimum Ratio of Digestible Leucine: Lysine in Wheat-based Diets for Female Broiler Chickens From 8 - 21 Days of Age

    Amirdahri, S. / Janmohammadi, H. / Taghizadeh, A. / Lambert, W. / Olyayee, M. / Assadi Soumeh, E.

    Journal of Applied Poultry Research. 2023 June, v. 32, no. 2 p.100289-

    2023  

    Abstract: Leucine (Leu) is one of the essential amino acids, and has a direct effect on protein biosynthesis in broiler skeletal muscle. So supply of sufficient amounts of Leu in young broiler is of interest. Therefore, the purpose of the current study was to ... ...

    Abstract Leucine (Leu) is one of the essential amino acids, and has a direct effect on protein biosynthesis in broiler skeletal muscle. So supply of sufficient amounts of Leu in young broiler is of interest. Therefore, the purpose of the current study was to estimate the optimal digestible Leu in ratio to lysine (Lys) of female broiler chickens from 8 to 21 d. A dose-response trial was performed, and the optimal digestible Leu was estimated applying broken-lines and quadratic regression models. A total of 540 one-wk-old female broiler chickens (Cobb-500), were randomly distributed to 6 dietary treatments (6 replicate of 15 birds in each), and fed the experimental diets from 8 to 21 d of age. Dietary digestible Leu was supplied from 0.93% up to 1.18% in 0.05% increments. Wheat-soybean meal based diet was formulated to be deficient in Leu, and dietary treatments were created by gradually replacing crystalline L-glutamic acid with crystalline L-Leu in basal diet. The live performance and carcass traits were evaluated, and excretion and retention of nitrogen was measured. The results showed that weight gain (WG), feed intake (FI), carcass weight, and breast weight had a quadratically response to digestible Leu: Lys from 0.93 to 1.18. Also, none of the retention and excretion of nitrogen were affected by increasing dietary digestible Leu levels. Based on the obtained data in the current study, the optimal digestible Leu: Lys of female Cobb 500 broilers fed with wheat-based diets from 8 to 21 d of age was estimated between 0.99 and 1.12 with an average of 1.06 based on quadratic broken-line model as the concluded value.
    Keywords breasts ; carcass weight ; diet ; dose response ; excretion ; feed intake ; females ; glutamic acid ; leucine ; lysine ; models ; nitrogen ; poultry ; protein synthesis ; research ; skeletal muscle ; weight gain ; branched chain-amino acid ; dose-response ; broiler
    Language English
    Dates of publication 2023-06
    Publishing place Elsevier Inc.
    Document type Article ; Online
    Note Pre-press version ; Use and reproduction
    ZDB-ID 1193887-0
    ISSN 1537-0437 ; 1056-6171
    ISSN (online) 1537-0437
    ISSN 1056-6171
    DOI 10.1016/j.japr.2022.100289
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 5902: Show issues

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  4. Article ; Online: Supplementation of broiler chicken diets with bovine lactoferrin improves growth performance, histological parameters of jejunum and immune-related gene expression.

    Olyayee, Majid / Javanmard, Arash / Janmohammadi, Hossein / Kianfar, Ruhollah / Alijani, Sadegh / Mir Ghelenj, Seyed Ali

    Journal of animal physiology and animal nutrition

    2022  

    Abstract: The aim of this study was to investigate the influence of dietary supplementation of bovine lactoferrin (bLF) on growth performance, carcass traits, histomorphology of jejunum, immune function and hepatic and splenic gene expression of interferon-gamma ( ... ...

    Abstract The aim of this study was to investigate the influence of dietary supplementation of bovine lactoferrin (bLF) on growth performance, carcass traits, histomorphology of jejunum, immune function and hepatic and splenic gene expression of interferon-gamma (IFN-γ) and interleukine-2 (IL-2) in broiler chickens. A total of 240 one-day-old Ross 308 male broiler chickens were randomly allotted into six dietary treatments with four replicate pens (10 chicks per pen) and fed experimental diet in 3 feeding phases (starter: d 0-10, grower: d 11-24 and finisher: d 25-42). The experimental treatments were (1) corn-soya bean meal-based basal diet (control), (2-5) basal diet supplemented with 200, 400, 600, 800 mg/kg bLF, respectively, and (6) basal diet supplemented with 200 mg/kg oxytetracycline (OTC). The average body weight gain (ABWG) of broilers fed 800 mg/kg bLF was 8.48% higher than those fed a corn-soybean meal-based diet during the starter period (d 0-10) (linear effect, p = 0.002; quadratic effect, p = 0.24). Average daily feed intake (ADFI) and the feed conversion ratio (FCR) were not affected (p>0.05) by bLF supplementation. At 42 days of age, the breast meat percentage and carcass yield of broilers fed 800 mg/kg bLF compared with the control group significantly increased by 9.51% and 6.03% respectively (p < 0.05). Compared with the chicks fed the control diet, the chicks fed diets supplemented with bLF had higher villus height, muscle thickness and villus surface area (p > 0.05). Dietary bLF inclusion increased the total immunoglobulin (IgT) titre against sheep red blood cells (SRBCs) antigen (linear effect, p = 0.031; quadratic effect, p = 0.035) and improved the phytohaemagglutinin-P (PHA-P)-skin test of broilers. Compared with the control, bLF enhanced the gene expression of IFN-γ in spleen (p = 0.048, linear effect, p = 0.009; quadratic effect, p = 0.093) and liver (p = 0.012, linear effect, p = 0.008; quadratic effect, p = 0.01) and IL-2 expression in spleen (p = 0.021, linear effect, p = 0.026; quadratic effect, p = 0.103). The bLF supplementation had no effect on IL-2 gene expression in liver (p > 0.05, linear effect, p = 0.213; quadratic effect, p = 0.159). In conclusion, we found that supplementation of broiler diets with 800 mg/kg bLF can improve the growth performance, carcass yield, cell-mediated and antibody-mediated immune responses and enhance the IL-2 and IFN-γ gene expression of broilers.
    Language English
    Publishing date 2022-02-01
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 232729-6
    ISSN 1439-0396 ; 0044-3565 ; 0931-2439
    ISSN (online) 1439-0396
    ISSN 0044-3565 ; 0931-2439
    DOI 10.1111/jpn.13683
    Database MEDical Literature Analysis and Retrieval System OnLINE

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