Twenty samples of two commercial feedstuffs, one for fattening pigs and one for pregnant sows, half of them containing hammer-mill ground corn and the other half containing roller-mill ground corn, were analyzed under laboratory conditions to determine the effect of milled corn, as the main ingredient in swine diets, on the mean particle size, standard deviation, apparent density, and stability ratio of emitted dust. Higher levels of respirable dust were recorded from roller-milled diets than from hammer-milled diets. Persistently high dust concentrations were recorded throughout the period of observation for both mixtures of roller-milled feedstuffs, particularly the pregnant sow diet, which was characterized by high corn percentages. The type of formulation influenced the mean particle size, standard deviation, and apparent density. The type of corn milling significantly influenced mean particle size, standard deviation, and feedstuff stability. It can be concluded that although roller-milling of corn can have a positive effect on feed digestibility, as widely reported in the literature, large amounts included in the diet can reduce the quality of air inside piggeries, with higher levels of fine particulate matter.

Effects of corn milling type on physical characteristics and dustiness of swine diets / A. Costa, M. Guarino, P. Navarotto, G. Savoini, D. Berckmans. - In: TRANSACTIONS OF THE ASABE. - ISSN 2151-0032. - 50:5(2007), pp. 1759-1764.

Effects of corn milling type on physical characteristics and dustiness of swine diets

A. Costa;M. Guarino;P. Navarotto;G. Savoini;
2007

Abstract

Twenty samples of two commercial feedstuffs, one for fattening pigs and one for pregnant sows, half of them containing hammer-mill ground corn and the other half containing roller-mill ground corn, were analyzed under laboratory conditions to determine the effect of milled corn, as the main ingredient in swine diets, on the mean particle size, standard deviation, apparent density, and stability ratio of emitted dust. Higher levels of respirable dust were recorded from roller-milled diets than from hammer-milled diets. Persistently high dust concentrations were recorded throughout the period of observation for both mixtures of roller-milled feedstuffs, particularly the pregnant sow diet, which was characterized by high corn percentages. The type of formulation influenced the mean particle size, standard deviation, and apparent density. The type of corn milling significantly influenced mean particle size, standard deviation, and feedstuff stability. It can be concluded that although roller-milling of corn can have a positive effect on feed digestibility, as widely reported in the literature, large amounts included in the diet can reduce the quality of air inside piggeries, with higher levels of fine particulate matter.
CORN ; MILLING TYPE ; SWINE
Settore AGR/10 - Costruzioni Rurali e Territorio Agroforestale
Settore AGR/18 - Nutrizione e Alimentazione Animale
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

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: https://hdl.handle.net/2434/42203
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 5
social impact