In Sicily, the current increasing cultivation of Opuntia ficus-indica corresponds to an availability of prickly pear by-product (PPB) that results from fruit processing for juice extraction. This investigation aims to evaluate the nutritional traits of PPB for ruminant feeding and its stability during a 21-day outdoor storage, using potassium metabisulfite (PMB) as a preservative agent, added to the PPB mass at different doses (0, 50, 100, and 150 g/kg). The fractioning of PPB showed that it included 28% of peel and pulp and 72% of seeds on a dry matter (DM) basis. On the whole, this by-product was low in crude protein (5.32% DM), high in fiber content (51.38%, 41.15% and 14.64% DM for NDFom, ADFom and ADL respectively), non-fiber carbohydrates (NFC, 29.68% DM), and soluble sugars (13.3% DM), with a moderate level of net energy for lactation (4.59 MJ/kg DM). Storage was the main factor of alteration of PPB chemical composition with the exception of ether extract. A decline of NFC and soluble sugars, due to microbial fermentation, was observed with all PMB treatments, especially during the first week of storage, probably due to evolution of both coccus (M17) and rod LAB (MRS), which increased their loads at the seventh day of storage.

Todaro M., Alabiso M., Di Grigoli A., Scatassa M.L., Cardamone C., Mancuso I., et al. (2020). Prickly pear by-product in the feeding of livestock ruminants: Preliminary investigation. ANIMALS, 10(6), 1-10 [10.3390/ani10060949].

Prickly pear by-product in the feeding of livestock ruminants: Preliminary investigation

Todaro M.
;
Alabiso M.;Di Grigoli A.;Mazza F.;Bonanno A.
2020

Abstract

In Sicily, the current increasing cultivation of Opuntia ficus-indica corresponds to an availability of prickly pear by-product (PPB) that results from fruit processing for juice extraction. This investigation aims to evaluate the nutritional traits of PPB for ruminant feeding and its stability during a 21-day outdoor storage, using potassium metabisulfite (PMB) as a preservative agent, added to the PPB mass at different doses (0, 50, 100, and 150 g/kg). The fractioning of PPB showed that it included 28% of peel and pulp and 72% of seeds on a dry matter (DM) basis. On the whole, this by-product was low in crude protein (5.32% DM), high in fiber content (51.38%, 41.15% and 14.64% DM for NDFom, ADFom and ADL respectively), non-fiber carbohydrates (NFC, 29.68% DM), and soluble sugars (13.3% DM), with a moderate level of net energy for lactation (4.59 MJ/kg DM). Storage was the main factor of alteration of PPB chemical composition with the exception of ether extract. A decline of NFC and soluble sugars, due to microbial fermentation, was observed with all PMB treatments, especially during the first week of storage, probably due to evolution of both coccus (M17) and rod LAB (MRS), which increased their loads at the seventh day of storage.
Settore AGR/18 - Nutrizione E Alimentazione Animale
Settore AGR/19 - Zootecnica Speciale
Todaro M., Alabiso M., Di Grigoli A., Scatassa M.L., Cardamone C., Mancuso I., et al. (2020). Prickly pear by-product in the feeding of livestock ruminants: Preliminary investigation. ANIMALS, 10(6), 1-10 [10.3390/ani10060949].
File in questo prodotto:
File Dimensione Formato  
animals-10-00949.pdf

accesso aperto

Tipologia: Versione Editoriale
Dimensione 250.04 kB
Formato Adobe PDF
250.04 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10447/424456
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 6
social impact