Grape by-products : perspectives in animal nutrition

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F21%3A43906117" target="_blank" >RIV/60076658:12220/21:43906117 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Grape by-products : perspectives in animal nutrition

Original language description

The agro-food industry generates a large production of by-products. Many by-products have interesting nutritive value and potential to be used in animal nutrition as feed ingredients. In grape processing, about 30% of the production is made of by-products, mainly grape pomace (pulps) and stems. From an environmental point of view, it seems vital to make use of these by-products as sources of nutrients and different bioactive substances in internal nutrition and feeding. The nutritive value of these products depends on different factors, such as the original composition of nutrients and processing technology. Grape pomace is rich in crude protein content, crude fat, crude fibre, as well as ADF and NDF. Regarding mineral composition, grape pomace is rich in Ca, P, Mg, K and Fe content. The quality of fat depends on the fatty acid profile. The content of polyunsaturated fatty acids is up to 70% and the content of α-linolenic acid is high. Grape by-products are also rich in many bioactive compounds, particularly grape pomace. Grape by-products are sources of resveratrol, quercetin, catechin, epicatechin etc.. Published studies reported the positive effect of nutritional supplementation of feed rations with grape pomace on the digestibility of nutrients, mainly crude proteins, and crude fat, and without a negative effect on haematological and biochemical indicators. Dietary grape pomaces intake can positively affect cow colostrum nutrients composition and increase crude protein content; however, it can decrease fat content. In pig nutrition, it is recommended to use grape pomace in fattening. In sow nutrition, there can be a negative effect of some haematological indicators on newborns. A limited ration of grape pomace in horse nutrition can increase the digestibility of nutrients, dry matter, organic matter, crude fibre and fibre fractions. It is important to note that grape pomace also contains some antinutritive factors with a possible negative effect on digestion. However, in geese fattening, grape pomace reduces the body weight at the end of the fattening proces and can also increase carcass yield and the content of polyunsaturated fatty acids in the crude fat. Conservation offers various possibilities for drying and silage making of grape pomace. For ensiling, the positive effect of urea as an additive is typical in relation to the protection of the content of crude proteins and fermentation stimulation. However, grape pomaces in particular have the potential to be used as feed ingredients in livestock nutrition and feeding. They are rich in different nutrients, minerals, and bioactive compounds. Additional research is needed to identify the maximum dietary intake and clarify the technological processing prior to the actual use.

Czech name

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Czech description

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Type

B - Specialist book

CEP classification

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OECD FORD branch

40203 - Husbandry

Project

<a href="/en/project/QK1910438" target="_blank" >QK1910438: Reduction the use of antibiotics by environmentally-friendly prebiotic and probiotic feed additives in the nutrition of calves</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

ISBN

978-80-7394-932-7

Number of pages

143

Publisher name

Jihočeská univerzita v Českých Budějovicích

Place of publication

České Budějovice

UT code for WoS book

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