Effects of triticale-based diets on finishing pig performance and pork quality in deep-bedded hoop barns

Abstract

. Each trial consisted of six pens of ten pigs (five barrows, five gilts) in three smallscale hoop barns (6.0 × 10.8 m). Pens were randomly assigned one dietary treatment: 1) corn-soybean meal control, 2) 40% Trical 815 triticale diet (by weight) or 3) 80% Trical 815 triticale diet (by weight). The 40 and 80% triticale diets had corn and soybean meal added. Animals had ad libitum access to feed and water during the study. Pigs were started on experiment at approximately 72 kg and fed for 49 d. At the end of each trial all pigs were scanned for backfat thickness and loin muscle area. Barrows from one winter and one summer trial were evaluated for meat and fat quality and sensory evaluation of pork. End weights and ADG were greater during the winter than summer (treatment × season interaction P < 0.01) and decreased as triticale inclusion increased (P < 0.001). Feed intake was similar. Pigs fed the control diet had the greatest G:F, those fed the 80% triticale diet had the least, with pigs fed the 40% triticale diet having intermediate G:F. During the summer, pigs fed the control diet had more BF (P < 0.05) than those fed the triticale diets. Also during summer, pigs fed the control diet had the largest loin muscle area (LMA) (47.5 ± 1.72 cm 2 ); pigs fed the 40% triticale diet had intermediate LMA (45.5 ± 1.72 cm 2 ) and those fed the 80% triticale diet had the smallest LMA (43.4 ± 1.73 cm 2 ). Dietary treatment had no effect on carcass weight, BF, LMA, percentage lean of barrows or sensory evaluation or fatty acid profile of loin chops. Ultimate pH was higher (P < 0.001), percentage loin purge was less (P < 0.05) and shear force (kg) was less (P < 0.05) during summer than winter. Total monounsaturated fatty acids (MUFA) were greater (P < 0.05) and total PUFA in loins were less (P < 0.01) during the winter than summer. Replacing corn with triticale in finishing pig diets in hoops slightly decreased growth performance, but did not affect pork quality.

Effects of gender and diet on back fat and loin area ultrasound measurements during the growth and final stage of fattening in Iberian pigs

“…In contrast to the values reported for the back fat thickness, values of M. longissimus area recorded in our study (21.99 and 19.79 cm 2 , or 0.136 and 0.122 cm 2 kg −1 for LA10 and LA14, respectively) were lower than those recorded in lean breeds (Newcom et al, 2004;Stahl and Berg, 2003;Sullivan et al, 2007;Hsu et al, 2010;Mas et al, 2010;Rybarczyk et al, 2011), both in absolute values (30.3-56.7 cm 2 ) and relative to body weight (0.329-0.498 cm 2 kg −1 ) or rate of deposition (0.088 cm 2 kg −1 in our study vs. 0.304 cm 2 kg −1 by Moeller et al (1998). This difference may be explained in part by constant genetic improvement of this parameter.…”

Effect of Bacillus subtilis, Clostridium butyricum and Lactobacillus acidophilus endospores on growth performance, nutrient digestibility, meat quality, relative organ weight, microbial shedding and excreta noxious gas emission in broilers

“…Yan et al (2011) described a similar method for calculating meat colour. Cook loss was determined as described previously by Sullivan et al (2007). Briefly, 5 g of breast meat were heat-treated in plastic bags separately in a water bath (100 °C) for 5 min.…”

Growth performance, carcass characteristics, meat quality, and tissue histology of growing pigs fed crude glycerin-supplemented diets1

“…Pen feed disappearance was adjusted for the removed pig at the time of removal. On d 138, all pigs were weighed (133 ± 6 kg of BW) for the termination of the performance period and scanned using real-time ultrasound as described by Sullivan et al (2007). In addition, blood samples (10 mL) for plasma analysis were collected via jugular venipuncture into containers containing sodium heparin.…”