Effect of dietary inclusion of mealworm frass on growth, hematology, and serum biochemistry of sheep

Ayaz, Muhammad; Khan, Rajwali; Khan, Sarzamin; Suhail, Syed Muhammad; Khan, Khalid Ali; Ahmad, Ijaz; Wahab, Abdul; Ayari-Akkari, Amel; Othman, Gehan

doi:10.1007/s11250-023-03518-2

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Even though no significant differences were observed, both serum protein and immunoglobulin levels were highest in fish fed 30% frass. Increased serum protein level was also observed in sheep fed a high level of mealworm frass [37]. Similarly, lysozyme did not show any significant difference between dietary treatments, but a tendency for higher activity in fish fed diets with frass compared to fish fed diet without frass was observed.…”

Section: Discussionmentioning

confidence: 74%

“…These improved hematological values may allow blood to absorb more oxygen during periods of reduced oxygen to maintain optimum health. Similarly, the inclusion of mealworm frass to replace 25% commercial concentrate feed improved hematological parameters of sheep [37]. Studies with hybrid tilapia [20] and Nile tilapia [38] fed dietary frass of up to 30% and insect meal, however, showed no influence on hematological values.…”

Section: Discussionmentioning

confidence: 97%

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Frass from Black Soldier Fly Larvae, Hermetia illucens, as a Possible Functional Dietary Ingredient in Channel Catfish Feed

Yıldırım-Aksoy,

Eljack,

Aksoy

et al. 2023

Fishes

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Frass–the by-product of the larva meal industry–was recently shown to be a sustainable ingredient for use in diets of several fish species. Additionally, because of its possible immunomodulatory activity and anti-microbial properties, frass may have great potential as an organic method of pathogen control in aquaculture. Five diets containing 0, 5, 10, 20 and 30% frass from black soldier fly larvae, Hermetia illucens, were fed to channel catfish (5.24 ± 0.04 g) in quadruplicate aquaria to apparent satiation twice daily. At the end of the 10-week feeding trial, blood samples were collected from all groups to measure hematological and immune parameters, and to determine the effects of dietary frass on resistance to Flavobacterium covae infection. Hematological parameters (red blood cell count, hemoglobin, and hematocrit)—but not white blood cell count—were improved with the inclusion of frass. Serum glucose levels were significantly lower in fish on the diet with frass than fish on the diet without frass. Fish fed the highest dietary levels of frass (30%) had a significantly higher serum cholesterol level than fish on the control diet. Serum complement activity was significantly higher in fish on diets containing frass at levels of 10% and 20%. No significant differences were observed in other measure serum components including albumin, alkaline phosphatase, alanine aminotransferase, amylase, calcium, phosphorus, potassium, total protein, globulin, thyroxine and lysozyme activity. Even though overall mortality was low (0–17%), fish on the diets containing frass at levels 20% or more showed significantly higher survival than that of control fish or fish on lower levels of dietary frass. The use of frass in the catfish diet may prove beneficial by improving hematological parameters, and select serum immune effectors, and the overall resistance of juvenile channel catfish against F. covae infection.

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Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 97%

Frass from Black Soldier Fly Larvae, Hermetia illucens, as a Possible Functional Dietary Ingredient in Channel Catfish Feed

Yıldırım-Aksoy,

Eljack,

Aksoy

et al. 2023

Fishes

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Cross-sectional study on prevalence of theileriosis in Kendrapada sheep, Odisha

Mohanty,

Acharya,

Mishra

et al. 2024

Preprint

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Ovine theileriosis represents a significant threat to both animal welfare and global agricultural productivity, particularly impacting economically disadvantaged farmers. Vector-borne haemoparasitic diseases like theileriosis have a profound effect on the health of livestock, leading to increased illness and mortality, especially in the coastal regions of Odisha. This research aimed to investigate and comprehend the prevalence, clinical manifestations, hematological and biochemical parameters, as well as molecular aspects of theileriosis in sheep from Kendrapada. Among 148 blood samples collected from Kendrapada sheep across four blocks, 13% tested positive for theileriosis, indicating a notable prevalence. The prevalence rate was highest among sheep aged 1–4 years (19%), followed by those younger than 1 year (17.9%) and older than 4 years (13.3%). Female sheep exhibited a higher prevalence (19%) compared to males (16%). Block-wise prevalence was highest in Aul (27.9%), followed by Marshaghai (19.4%), Kendrapada (16.1%), and Derabish (5.88%). Hematological analysis revealed deviations in parameters such as hemoglobin, total erythrocyte count, total leukocyte count, and mean corpuscular volume, while packed cell volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and differential leukocyte count remained within normal ranges. Significant differences (P < 0.05) were observed in various parameters between Theileria-positive and negative sheep. However, there were no substantial variations noted among different age groups and genders of Theileria-positive sheep. PCR analysis identified an overall incidence of theileriosis at 17.57% in the study population, with sequences closely resembling Theileria luwenshuni isolates. This study confirms the high variability of the 18S small subunit rRNA gene among Theileria spp.

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Effect of dietary inclusion of mealworm frass on growth, hematology, and serum biochemistry of sheep

Cited by 2 publications

References 18 publications

Frass from Black Soldier Fly Larvae, Hermetia illucens, as a Possible Functional Dietary Ingredient in Channel Catfish Feed

Frass from Black Soldier Fly Larvae, Hermetia illucens, as a Possible Functional Dietary Ingredient in Channel Catfish Feed

Cross-sectional study on prevalence of theileriosis in Kendrapada sheep, Odisha

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