Feeding increasing inclusions of canola meal with distillers dried grains and solubles to growing-finishing barrows and gilts

Effects of pork differentiation strategies in Canada on pig performance and carcass characteristics

“…However, this effect on AFI seems to disappear when flaxseed levels increase ≥15% (Thacker et al 2004;Juárez et al 2010). Including high levels of canola in the diet of pigs has also been reported to decrease AFI (Dugan et al 2001;Smit et al 2014;Woyengo et al 2014), with no effect (Dugan et al 2001) or a small decrease in ADG (Woyengo et al 2014). This may be due to negative effects of canola on diet palatability due to glucosinolate levels (Mawson et al 1993).…”

Feeding Brassica juncea or Brassica napus canola meal at increasing dietary inclusions to growing-finishing gilts and barrows

“…High fibre diets increase total empty weight of the gastrointestinal tract and the volume of digesta in the gut (Kerr and Shurson, 2013) resulting in lower carcass dressing. On the other hand, most trials feeding conventional CM to growing-finishing pigs have not shown a decrease in carcass dressing compared with pigs fed diets without CM (King et al, 2001;Brand et al, 2001 experiment 1;Roth-Maier et al, 2004;Smit et al, 2014). The decreased carcass dressing in pigs fed B. juncea compared to B. napus CM in this trial could be due to a slight increase in the weight of the liver and thyroid in response to greater glucosinolate intake.…”

“…Jha et al (2013) showed that feeding high levels of co-products (up to 50%) to growing-finishing pigs decreased ADG and ADFI, without affecting feed efficiency. Moreover, for growing-finishing pigs fed diets including 150 g/kg wheat-corn DDGS and CM ranging from 0 to 240 g/kg, ADFI and ADG but not feed efficiency decreased linearly (Smit et al, 2014). Zhou et al (2014a) reported decreased ADFI and ADG as well when feeding growing-finishing pigs extruded and expeller-pressed B. juncea cake, but also did not find an effect on feed efficiency.…”

“…Brassica napus has been included in diets up to 250 g/kg without affecting pig growth performance (Brand et al, 2001;King et al, 2001;Smit et al, 2014). The present trial, however, focused on feeding greater dietary CM inclusions up to 300 g/kg and comparing CM species rather than comparing to controls fed no CM.…”

“…Thus wheat DDGS was included in these diets at high levels. We recently showed that up to 240 g/kg conventional CM could be fed together with 150 g/kg of wheat-corn DDGS to growing-finishing pigs resulting in only minor effects on overall pig growth performance and no effects on carcass traits (Smit et al, 2014). Diets in the present trial thus included up to 300 g/kg CM and 200 g/kg of wheat DDGS, which together resulted in diets with up to 500 g/kg of high-protein, high-fibre co-products compared to traditional inclusion levels in wheat or corn-soybean diets.…”