Insect oils and chitosan in sheep feeding: Effects on in vitro ruminal biohydrogenation and fermentation

Hervás, Gonzalo; Boussalia, Yasmine; Labbouz, Yassine; Badia, Antonella Della; Toral, Pablo G.; Frutos, Pilar

doi:10.1016/j.anifeedsci.2022.115222

Cited by 11 publications

(7 citation statements)

References 47 publications

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“…The inhibitory effect of dietary PUFA on ruminal microbial population responsible for their biohydrogenation is well known and documented in literature for lipid supplements of plant origin [ 75 , 76 ]. Our results are also in agreement with the low biohydrogenation rate of insect oil PUFA recently observed by Hervás et al [ 22 ].…”

Section: Discussionsupporting

confidence: 94%

“…In these studies, only SBM or soybean oil were used as reference feedstuff and the assessment regarded a limited number of insect species in each trial. Moreover, very limited information is available concerning lipid ruminal biohydrogenation, useful to give supplementary information for the comprehension of ruminal fermentation dynamics, as only insect oils from few species were tested so far [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Full-fat insect meals in ruminant nutrition: in vitro rumen fermentation characteristics and lipid biohydrogenation

Renna

Coppa

Lussiana

et al. 2022

J Animal Sci Biotechnol

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Background The most used protein sources in ruminant nutrition are considered as having negative impacts in terms of environmental sustainability and competition with human nutrition. Therefore, the investigation of alternative and sustainable feedstuffs is becoming a priority in ruminant production systems. Results This trial was designed to evaluate eight full-fat insect meals (Acheta domesticus – ACD; Alphitobius diaperinus – ALD; Blatta lateralis – BL; Gryllus bimaculatus – GB; Grylloides sygillatus – GS; Hermetia illucens – HI; Musca domestica – MD; and Tenebrio molitor – TM) as potential protein and lipid sources in ruminant nutrition. Fermentation parameters and fatty acids (FA) of rumen digesta after 24-h in vitro ruminal incubation of the tested insect meals were measured and compared with those of three plant-based meals (soybean meal, rapeseed meal and sunflower meal) and fishmeal (FM). Similarly to FM, the insect meals led to a significantly lower total gas production (on average, 1.75 vs. 4.64 mmol/g dry matter—DM), methane production (on average, 0.33 vs. 0.91 mmol/g DM), volatile FA production (on average, 4.12 vs. 7.53 mmol/g DM), and in vitro organic matter disappearance (on average, 0.32 vs. 0.59 g/g) than those observed for the plant meals. The insect meals also led to lower ammonia of rumen fluid, when expressed as a proportion of total N (on average, 0.74 vs. 0.52 for the plant and insect meals, respectively), which could be an advantage provided that intestinal digestibility is high. Differences in ruminal fermentation parameters between the insect meals could be partially explained by their chitin, crude protein and ether extract contents, as well as by their FA profile. In particular, high content of polyunsaturated FA, or C12:0 (in HI), seems to partially inhibit the ruminal fermentations. Conclusions The tested full-fat insect meals appear to be potentially an interesting protein and lipid source for ruminants, alternative to the less sustainable and commonly used ones of plant origin. The FA profile of the rumen digesta of ACD, ALD, GB, GS and TM, being rich in n-6 polyunsaturated FA, could be interesting to improve the quality of ruminant-derived food products.

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Section: Discussionsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Full-fat insect meals in ruminant nutrition: in vitro rumen fermentation characteristics and lipid biohydrogenation

Renna

Coppa

Lussiana

et al. 2022

J Animal Sci Biotechnol

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show abstract

“… Jayanegara et al (2021b) integrated results from published in vitro trials using chitosan from crustaceans at concentrations between 50 and 138 g/kg diet DM, and reported an increase in the ruminal accumulation of potentially health-promoting fatty acids (e.g., rumenic and trans -vaccenic acids), which could be subsequently available for mammary and adipose tissue uptake. However, Hervás et al (2022) observed that chitosan from H. illucens at 30 g/kg DM did not modify the fatty acid profile of in vitro ruminal digesta, either when used alone or in combination with 20 g/kg DM of soybean, H. illucens , A. domesticus , or B. mori oils. The lack of effects on odd- and branched chain fatty acids, mostly derived from microbial synthesis, suggests that chitosan did not significantly alter ruminal microbiota.…”

Section: Other Insect-derived Ingredients In Ruminant Feeding: Chitin...mentioning

confidence: 90%

“…Diet supplementation with PUFA-rich vegetable oils (e.g., soybean and linseed oils) has widely been examined as a tool to manipulate the nutritional quality of meat and milk fat. In this regard, Hervás et al (2022) compared the in vitro BH of oils from H. illucens , B. mori , and A. domesticus (rich in lauric, α-linolenic, and linoleic acid, respectively) and soybean (rich in linoleic acid). In the absence of detrimental effects on ruminal fermentation, results supported that insect oils modulated ruminal BH, with results that were directly linked to their unsaturation degree.…”

Section: Insects As a Source Of Lipidsmentioning

confidence: 99%

Are insects a solution for feeding ruminants? Legislation, scientific evidence, and future challenges

Renna,

Rastello,

Veldkamp

et al. 2023

Animal Frontiers

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“…No information is currently available regarding the inclusion of insects in diets destined for dairy ruminants and the related effects on milk yield and composition. According to Hervás et al (2022), some oils derived from insect defatting processes (e.g. from A. domesticus and B. mori) may potentially be used in the substitution of soybean oil to improve the energy density of ruminant diets and to modulate ruminal biohydrogenation, increasing the concentration of the health-promoting vaccenic (C18:1 trans-11) and rumenic (C18:2 cis-9, trans-11) acids, without altering the concentrations of C18:1 trans-10 (which may exert potentially negative effects on animal performance and human health).…”

Section: Quantitative and Qualitative Aspects Of Animal Performancementioning

confidence: 99%

Can insects be used in the nutrition of ruminants?

Renna

Rastello

Gasco

2022

JIFF

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Recent studies pointed out that live insects and their products (meals and oils) are suitable protein and fat sources and can be used in the nutrition of farmed monogastric animals. This is as an alternative to traditional plant-derived and animal-derived feedstuffs. To date very little information is available concerning the effects of the dietary inclusion of insects on feed digestibility and performance of ruminant animals. The aim of this editorial is to briefly review the published information on this topic.

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Insect oils and chitosan in sheep feeding: Effects on in vitro ruminal biohydrogenation and fermentation

Cited by 11 publications

References 47 publications

Full-fat insect meals in ruminant nutrition: in vitro rumen fermentation characteristics and lipid biohydrogenation

Full-fat insect meals in ruminant nutrition: in vitro rumen fermentation characteristics and lipid biohydrogenation

Are insects a solution for feeding ruminants? Legislation, scientific evidence, and future challenges

Can insects be used in the nutrition of ruminants?

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