The use of natural products, such as plant extracts, in animal nutrition is currently of great interest, as it contributes to the growing need to respect the environment and to safeguard human and animal health. With specific regard to animal health, there is an increasing need to reduce the use of pharmaceuticals, antibiotics, and synthetic products in animal feeding and care. Numerous solutions are available on the market, such as by-products of the food industry, which allow the reuse of materials that would otherwise be considered waste, or natural products, such as phytoextracts, which can provide numerous benefits to the health and productive performance of animals belonging to different livestock species. This thesis aims to analyze, through a review of the scientific literature, the effects of using a grape extract produced by the French company Nor-Feed (Nor-Grape®). The product is commercially available in two formulations: Nor-Grape 80®, characterized by a high concentration of polyphenols and suitable for use in the feeding of all monogastric animals, and Nor-Grape BP-O®, a rumen-protected version suitable for ruminants. The thesis examines the advantages derived from the use of by-products, with particular emphasis on grape by-products, and then focuses more closely on various scientific studies demonstrating benefits for bone health in poultry, meat quality in pigs, and antioxidant capacity and improved growth performance in aquaculture. Greater attention is devoted to the effects observed in cattle, mainly with the aim of reducing issues related to heat stress and its consequences on animal welfare and health. The topic of the thesis was chosen during internship activities carried out at SIVAM, an Italian company with extensive experience in the feed, seed, and livestock support sectors. Thanks to its collaboration with Nor-Feed, SIVAM represents Nor-Grape® in Italy, an additive included in various commercial products intended for all categories of cattle, thereby contributing to the dissemination of products of natural origin within a circular economy framework.
L’impiego di prodotti naturali, come ad esempio gli estratti vegetali, nell’alimentazione zootecnica trova attualmente un grande interesse in quanto contribuisce alla crescente esigenza del rispetto dell’ambiente, della salute umana e animale. Proprio riguardo alla salute animale è in costante aumento la necessità di ridurre l’utilizzo di farmaci, antibiotici e prodotti di sintesi nell’alimentazione e nella cura degli animali. Sul mercato sono disponibili numerose soluzioni come i sottoprodotti dell’industria alimentare che consentono il riutilizzo di materiali altrimenti considerati di scarto oppure prodotti naturali, come i fitoestratti, che possono apportare numerosi benefici sulla salute e sulle prestazioni produttive di animali appartenenti a diverse specie di interesse zootecnico. Questa tesi si propone di analizzare, attraverso l’analisi della letteratura scientifica, gli effetti dell’impiego di un estratto d’uva prodotto dall’azienda francese Nor-Feed (Nor-Grape ®). Il prodotto è presente in commercio in due formulazioni: Nor-Grape 80 ®, caratterizzato da una elevata concentrazione di polifenoli, utilizzabile nell’alimentazione di tutti gli animali monogastrici, e Nor-Grape BP-O ®, una versione rumino-protetta utilizzabile invece nei ruminanti. Nella tesi vengono analizzati i vantaggi derivati dall’impiego di sottoprodotti, in particolar modo i sottoprodotti dell’uva, prestando poi maggiore attenzione ai diversi studi scientifici che dimostrano i benefici sulla salute delle ossa negli avicoli, sulla qualità della carne nei suini e sulla capacità antiossidante e di aumento delle performance di crescita in acquacoltura. Maggiore spazio è rivolto agli effetti osservati sui bovini principalmente allo scopo di ridurre le problematiche legate a situazioni di stress da caldo e le conseguenze sul benessere e sulla salute degli animali. L’argomento della tesi è stato scelto durante le attività di tirocinio, effettuato presso la SIVAM, azienda italiana con grande esperienza nel settore mangimistico, sementiero e di supporto alla zootecnia. SIVAM, grazie alla collaborazione con Nor-Feed è rappresentante per l’Italia di Nor-Grape ®, additivo che viene inserito all’interno di diversi prodotti commerciali destinati a tutte le categorie di bovini, contribuendo così alla diffusione di prodotti di origine naturale in un’ottica di economia circolare.
IMPIEGO DI UN ESTRATTO D'UVA NELL'ALIMENTAZIONE ZOOTECNICA: EFFETTI SULLA SALUTE E SULLE PERFORMANCE DI ANIMALI APPARTENENTI A DIVERSE SPECIE
MUNARI, DAVIDE
2025/2026
Abstract
The use of natural products, such as plant extracts, in animal nutrition is currently of great interest, as it contributes to the growing need to respect the environment and to safeguard human and animal health. With specific regard to animal health, there is an increasing need to reduce the use of pharmaceuticals, antibiotics, and synthetic products in animal feeding and care. Numerous solutions are available on the market, such as by-products of the food industry, which allow the reuse of materials that would otherwise be considered waste, or natural products, such as phytoextracts, which can provide numerous benefits to the health and productive performance of animals belonging to different livestock species. This thesis aims to analyze, through a review of the scientific literature, the effects of using a grape extract produced by the French company Nor-Feed (Nor-Grape®). The product is commercially available in two formulations: Nor-Grape 80®, characterized by a high concentration of polyphenols and suitable for use in the feeding of all monogastric animals, and Nor-Grape BP-O®, a rumen-protected version suitable for ruminants. The thesis examines the advantages derived from the use of by-products, with particular emphasis on grape by-products, and then focuses more closely on various scientific studies demonstrating benefits for bone health in poultry, meat quality in pigs, and antioxidant capacity and improved growth performance in aquaculture. Greater attention is devoted to the effects observed in cattle, mainly with the aim of reducing issues related to heat stress and its consequences on animal welfare and health. The topic of the thesis was chosen during internship activities carried out at SIVAM, an Italian company with extensive experience in the feed, seed, and livestock support sectors. Thanks to its collaboration with Nor-Feed, SIVAM represents Nor-Grape® in Italy, an additive included in various commercial products intended for all categories of cattle, thereby contributing to the dissemination of products of natural origin within a circular economy framework.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/105833