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Industrial Hemp and Hemp Byproducts as Sustainable Feedstuffs in Livestock Diets

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Cannabis/Hemp for Sustainable Agriculture and Materials

Abstract

Cannabis sativa, more commonly referred to as industrial hemp, has been used for fiber, food, and medicinal purposes for millennia. Temporarily suffering a setback for parts of the 20th and 21st centuries, interest in hemp production has resurged with the recent rollback of legislative restrictions. Most notably, an interest in the nutritional profile of hemp seed has developed based on its rich array of fatty acids and protein. The increase in hemp production has led to a reciprocating increase in the availability of hemp seed and its associated by-products. While anecdotal and historical accounts exist for feeding hemp to livestock, published reports are limited. This is further complicated by a lack of acceptance in many countries for feeding hemp to livestock. Livestock’s ability to consume unusable waste products from various commodities and turn them into consumable goods is a major component of sustainable agriculture. Research indicates that dietary enrichment with hemp has the potential as a valuable source of protein, fat, and fiber to increase the quality and composition of meat, milk, and eggs; however, to what extent remains unknown. This review aims to explore the nutrient profile of the industrial hemp plant and evaluate our current understanding of hemp used in livestock diets.

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Abbreviations

AA:

Arachidonic acid

ADF:

Acid detergent fiber

ADG:

Average daily gain

ALA:

α-Linolenic acid

BP:

Before present

CHO:

Carbohydrate

CP:

Crude protein

DHA:

Docosahexaenoic acid

EPA:

Eicosapentaenoic acid

GLA:

Gamma linolenic acid

LA:

Linoleic acid

NDF:

Neutral detergent fiber

PDCAAS:

Protein digestibility–corrected amino acid score

PUFA:

Polyunsaturated fatty acids

TDF:

Total dietary fiber

TDN:

Total digestible nutrients

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Correspondence to John Fike .

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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Ely, K., Fike, J. (2022). Industrial Hemp and Hemp Byproducts as Sustainable Feedstuffs in Livestock Diets. In: Agrawal, D.C., Kumar, R., Dhanasekaran, M. (eds) Cannabis/Hemp for Sustainable Agriculture and Materials. Springer, Singapore. https://doi.org/10.1007/978-981-16-8778-5_6

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