scholarly journals Bioactive properties of insect products for monogastric animals – a review

2021 ◽  
pp. 1-14
Author(s):  
T. Veldkamp ◽  
L. Dong ◽  
A. Paul ◽  
C. Govers
Keyword(s):  
Fatty Acids ◽  
Recent Literature ◽  
Animal Feed ◽  
Antimicrobial Properties ◽  
Secondary Effects ◽  
Feed Ingredient ◽  
Helical Peptides ◽  
Bioactive Properties ◽  
Chitin And Chitosan ◽  
Additional Value

Insects or products derived from insects are considered as a valuable feed ingredient for aquaculture, poultry, and pigs but also exert possible secondary effects of health stimulators in livestock as reported in literature. Health benefits attributed to insects can create additional value in the insect chain. Three categories of bioactive compounds in insects are reported in this desk study: antimicrobial peptides (such as α-helical peptides, cysteine-rich peptides, proline-rich peptides, glycine-rich peptides), fatty acids (especially lauric acid), and polysaccharides (especially chitin and chitosan). The review summarises the recent literature on these three categories. Antimicrobial properties or immuno-modulating effects may contribute to reduce the use of antibiotics and to avoid antibiotic resistance in livestock when these insect products are included in animal diets. Furthermore, antioxidant capacity of insect-proteins might reduce collateral tissue damage. Health stimulating effects of insect products may result in additional applications of insect products in animal feed for livestock.

scholarly journals Application of micro algae in poultry nutrition; a review

2020 ◽  
Vol 3 (2) ◽  
pp. 241-256
Author(s):  
Puja Thapa
Keyword(s):  
Fatty Acids ◽  
Polyunsaturated Fatty Acids ◽  
Egg Quality ◽  
Animal Feed ◽  
Biofuel Production ◽  
Partial Replacement ◽  
Growth Promoters ◽  
Feed Ingredient ◽  
Poultry Nutrition ◽  
Poultry Diets

In this review, we unveil the the use of microalgae as a feed ingredient in poultry nutrition. Microalgae are small-sized algae, unicellular, photosynthetic aquatic plants which have been studied as a natural marine resource for a number of economically applications, including animal feed. They are introduced to poultry diets mainly as a rich source of n-3 long chain polyunsaturated fatty acids, including docohexaenoic and eicosapentaenoic acid, but they can also serve as a protein, microelement, vitamin and antioxidants source, as well as a pigmentation agent for skin and egg yolks. The majority of experiments have shown that microalgae, mainly Spirulina and Chlorella sourced as a defatted biomass from biofuel production, can be successfully used as a feed ingredient in poultry nutrition. They can have beneficial effects on meat and egg quality, through an increased concentration of n-3 polyunsaturated fatty acids and carotenoids, and in regards to performance indices and immune function. Positive results were obtained when fresh microalgae biomass was used to replace antibiotic growth promoters in poultry diets. Because of their chemical composition, microalgae can be efficiently used in poultry nutrition to enhance the pigmentation and nutritional value of meat and eggs, as well as partial replacement of conventional dietary protein sources.  

Antimicrobial properties of tannin extracts as animal feed

2019 ◽  
Author(s):  
S Štumpf ◽  
G Hostnik ◽  
M Leitgeb ◽  
M Primožič ◽  
U Bren
Keyword(s):  
Animal Feed ◽  
Antimicrobial Properties

scholarly journals Chemical Composition of Earthworm (Eisenia foetida) Co-Dried with Vegetable Meals as an Animal Feed

2019 ◽  
Vol 16 (2) ◽  
pp. 79-92
Author(s):  
Kirenia Pérez-Corría ◽  
Aroldo Botello-León ◽  
Abril Karina Mauro-Félix ◽  
Franklin Rivera-Pineda ◽  
María Teresa Viana ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
Animal Species ◽  
Animal Feed ◽  
Eisenia Foetida ◽  
Corn Meal ◽  
Feed Ingredient ◽  
Nitrogen Free Extract ◽  
Market Requirement

To evaluate the chemical composition of the earthworm (Eisenia foetida) co-dried (EW) with vegetable meals (VM) as animal feed ingredient, the blends were mixed with wheat bran (WB), rice powder (RP), corn meal (CM) and soy cake meal (SCM) in proportions of 85:15; 75:25 and 65:35. The dry matter (DM), crude protein (CP), crude fat (CFA), crude fiber (CF), ashes and nitrogen-free extract (NFE) of the ingredients and final mixtures were determined. All the mixtures resulted with a high content of DM (≥90.00 %). No significant differences among the proportions were revealed (P>0.05). In addition, the higher inclusion of the earthworm in the proportions (85:15) increased (P<0.05) the CP (54.70 %), CFA (7.28 %), and ashes (10.20 %), mainly when mixed with SCM, CM, and RP, respectively. However, the use of vegetable meals proportionally increased the CF (7.31 %), and NFE (52.62 %), mainly with the proportion of 65:35 and with RP and CM, respectively (P<0.05). The results showed that the vegetable meals (WB, RP, CM, and SCM) are useful to co-dry the earthworm to be use for animal feed. It is concluded that the most appropriate proportion (VM:EW) will depend on the animal species, productive stage and market requirement.

scholarly journals Fatty Acids and Oxylipins as Antifungal and Anti-Mycotoxin Agents in Food: A Review

Toxins ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 852
Author(s):  
Mei Qiu ◽  
Yaling Wang ◽  
Lijun Sun ◽  
Qi Deng ◽  
Jian Zhao
Keyword(s):  
Fatty Acids ◽  
Control Systems ◽  
Molecular Mechanisms ◽  
Antifungal Agents ◽  
Recent Literature ◽  
Fungal Growth ◽  
Food Control ◽  
Fungal Contamination ◽  
Mycotoxigenic Fungi

Fungal contamination of food, especially by mycotoxigenic fungi, not only reduces the quality of the food, but can also cause serious diseases, thus posing a major food safety challenge to humans. Apart from sound food control systems, there is also a continual need to explore antifungal agents that can inhibit fungal growth and mycotoxin production in food. Many types of fatty acids (FAs) and their oxidized derivatives, oxylipins, have been found to exhibit such effects. In this review, we provide an update on the most recent literature on the occurrence and formation of FAs and oxylipins in food, their effects on fungal growth and mycotoxin synthesis, as well as the genetic and molecular mechanisms of actions. Research gaps in the field and needs for further studies in order to realizing the potential of FAs and oxylipins as natural antifungal preservatives in food are also discussed.

PSVI-25 Feeding increasing levels of yerba mate in lambs: Effects on fatty acid profile, and physical characteristics meat

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 386-387
Author(s):  
Yuli Andrea Pena Bermudez ◽  
Richard Roberto Lobo ◽  
Danny Alexander Rojas Moreno ◽  
Rafaela Scalise Xavier de Freitas ◽  
Ives Claudio C Da Silva Bueno
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Mixed Model ◽  
Animal Feed ◽  
Block Design ◽  
Natural Antioxidants ◽  
Quality Analysis ◽  
Control Group ◽  
Yerba Mate

Abstract The presence of secondary metabolites in the structure of natural antioxidants makes them an alternative for animal feed, which allows modifying the composition of the meat, thus contributing to people’s health. For this reason, the aim of the present study was to evaluate the effects of yerba mate extract (YME) on lamb feed as a natural antioxidant in the fatty acid profile and physical traits of meat of 36 lambs fed for 53 days, fed with corn silage and concentrate in the proportion 40:60, respectively. The treatments followed the randomized block design, with a control group without YME (0%) and three groups with 1, 2, and 4% of YME inclusion in the dry matter (DM). Samples were collected from the Longissimus thoracis (LT), muscle for quality analysis and composition. All data were analyzed using a MIXED model with orthogonal contrasts. We found that the inclusion of YME did not affect significantly the characteristics of the pH, total lipids and color general (P = 0.192), although the use of YME don’t affect the parameters normal in the meat. Nevertheless, the use of YME improved the value of b* (P = 0.004), showing a yellowness coloration in the meat of the lambs. Likewise, changed the proportion of branched-chain fatty acids (BCFA; P = 0.009) and the conjugated linoleic acid (CLA; P = 0.030) exhibited a diet effect for the group with 4% YME. This is revealing result, since these fatty acids have been associated with a decrease in cardiovascular diseases. Therefore, the addition of up to 4% YME improves the composition and general acceptance of lamb meat, recommended for use in animal feed.

scholarly journals Sweet white lupin: A potential crop for Ontario

1995 ◽  
Vol 75 (4) ◽  
pp. 841-849 ◽  
Author(s):  
S. Brebaum ◽  
G. J. Boland
Keyword(s):  
Fatty Acids ◽  
Crop Production ◽  
Management Practices ◽  
Unsaturated Fatty Acids ◽  
Animal Feed ◽  
Saturated Fatty Acids ◽  
Lupinus Albus ◽  
Critical Factor ◽  
White Lupin ◽  
Advantages And Disadvantages

Sweet white lupin (Lupinus albus) is an emerging crop in Ontario and, in 1993, up to 600 ha acres of lupin were planted. This crop is adapted to cool and moderately warm climates, is frost-resistant to −2 °C, requires sandy to loamy soils, requires inoculation with Bradyrhizobium sp. to achieve high yields, and improves soil structure and nutrients when included in a crop rotation. The crop requires 119–135 d to mature and is thermosensitive; both traits can reduce yield in seasons with unfavourable environments. The crop is not particularly competitive with weeds and effective weed control is a critical factor in crop production. Lupin is attacked by several pathogens and insects but knowledge on appropriate pest management practices needs to be improved. The harvested seed of sweet white lupin is primarily used as an on-farm source of protein. Seeds do not require heat treatment prior to being used as animal feed and can be included as a part of the protein component in the diets of ruminants, swine and poultry. High protein digestibility and high fibre content of lupin seeds can limit incorporation into the diets of ruminants and swine, respectively. Lupin can be beneficial in human diets because milk from lupin-fed animals contains more unsaturated fatty acids and less saturated fatty acids than milk from animals fed soybean meal. Sweet white lupin has several advantages and disadvantages as an emerging crop in Ontario, but additional research and development are needed. Key words: Lupin (sweet white), Lupinus albus

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