Performance and carcass characteristics of growing pigs and broilers fed diets containing micronised barley, ground barley, wheat and maize

Abstract

Two swine starter/grower/®nisher trials utilising 216 24-day-old pigs and one 40-day broiler growth trial utilising 1920 1-day-old chicks were conducted to determine the in¯uence of dietary micronised dehulled barley (MDB) as a replacement for hulled barley (HB), wheat (W) and maize (M) on live performance, carcass and meat measurements, organ weights (swine), plasma urea nitrogen (PUN) level (swine) and intestinal digesta viscosity (broilers). Dehulling and micronising the barley reduced crude protein by 20%, neutral detergent ®bre by 17% and amino acids by varying amounts. Replacing M or W with MDB in swine diets had no effect (P > 0.05) on any measured parameter, with the exception of decreased PUN (P = 0.03) when MDB replaced 100% of W. Broilers fed W, M or HB generally had similar live performance, carcass traits and digesta viscosity, with the exception of reduced (P < 0.05) average daily gain and average daily feed intake for HB during the ®rst 20 days of the trial. However, broilers fed MDB had slightly reduced (P = 0.05) live performance during each phase of the trial and greatly increased (P = 0.01) digesta viscosity. Addition of a commercial enzyme product to the diets reversed the reduced performance and increased the digesta viscosity of the MDB diet, but generally had no in¯uence in the W, M and HB diets. These results suggest that MDB can be utilised in swine diets without affecting performance, but that reduced performance may result from its use in broiler diets.

Intramuscular Administration of Zinc Metallothionein to Preslaughter Stressed Pigs Improves Anti-oxidative Status and Pork Quality

“…Following slaughter, hot carcasses were chilled for 24 h. Intact loins from the right side were collected and vacuumpackaged for laboratory analyses (Yin et al, 2001).…”

Effects of amino acids supplementation in low crude protein diets on growth performance, carcass traits and serum parameters in finishing gilts

“…; Yin et al . ). It is important to evaluate AA supplementation separately based on gender of pigs in the finishing period (Ma et al .…”

“…In the finishing period, gilts usually need higher AA concentrations in the diet due to greater lean growth rate and reduced feed intake compared to barrows (Friesen et al 1994;King et al 2000;Yin et al 2001). It is important to evaluate AA supplementation separately based on gender of pigs in the finishing period (Ma et al 2015b).…”

Comparison of Thermal and Non-Thermal Processing of Swine Feed and the Use of Selected Feed Additives on Inactivation of Porcine Epidemic Diarrhea Virus (PEDV)

“…Similarly, the enveloped classical swine fever RNA virus is readily inactivated in pasteurization processes after only 1 min at 71°C [ 12 ]. High temperatures (around 100°C) are also used in other processes including micronization to prepare cereal grains [ 13 , 14 ]. The high temperatures used in processing rendered products and cereal grains may also be effective in inactivating PEDV in contaminated feed, but no research has been conducted to compare PEDV survival at temperatures greater than 80°C.…”