Brassica napus and Brassica juncea extruded-expelled cake and solvent-extracted meal as feedstuffs for laying hens: Lay performance, egg quality, and nutrient digestibility

Abstract

Two experiments evaluated feeding Brassica ( B. ) napus (canola) or B. juncea co-products to brown-shelled egg laying hens. In Exp. 1, diets including 20% B. napus or B. juncea extruded-expelled cakes ( NC, JC ) or solvent-extracted meals ( NM, JM ) compared to a control diet with no Brassica co-products, were fed to 120 hens (4 hens/cage, n = 6) for 36 wk. In Exp. 2, DM, gross energy, CP and amino acid ( AA ) retention/digestibility was determined by feeding diets containing 30% B. napus or B. juncea cakes or meals and basal diet to 240 hens (8 hens/pair of cages, n = 6) for 7 d. Cakes averaged 40 g/kg lower moisture, 28 g/kg lower CP, and 84 g/kg greater fat content compared with meals. In Exp. 1, there was no effect of diet on lay percentage or BW throughout the experiment. Feed consumption was 3.5 g/d lower in layers fed JM compared with controls and egg: feed was reduced by 14 mg egg/g feed in layers fed JC ( P < 0.01). Although eggs from layers fed NM were 0.7 g heavier than controls, eggs from layers fed NC, JM or JC were 1.4 g lighter than controls ( P < 0.01). Eggs from layers fed Brassica diets contained a greater proportion (1.6%-points) of monounsaturated fatty acids compared with controls ( P < 0.01). Eggs from layers fed B. juncea had a relatively greater proportion (0.2%-points) of C18:3 (n3) compared with those of layers fed B. napus diets ( P < 0.01). Feeding Brassica diets reduced digestibility of DM (5%-points), gross energy (7%-points) and CP (4%-points) vs. basal ( P < 0.01). The digestibility of indispensable AA except tryptophan, was reduced feeding Brassica diets vs. basal ( P < 0.01). We concluded that feeding B. napus and B. juncea extruded-expelled cakes and solvent-extracted meal at 20% of diets to hens supported acceptable lay performance and egg quality over a 36 wk production cycle. Digestibility data indicated that indispensable AA in Brassica co-products had moderately high (75 to 85%) apparent ileal digestibility.

Nutritional parameters of eggs from laying hens fed with flaxseed meal or mixture with rapeseed meal or rice bran

“…Compared to the data reported by Oryschak et al (2020), the results obtained in this study have shown the beneficial effect of using rapeseed meal in combination with flaxseed meal, although the addition level in ratio was lower compared to the tested one in Oryschak et al (2020) study. In a similar study (Yuan et al 2019), the effects of including two different levels of rapeseed oil (2% and 4%) on production performance, egg quality and biochemical parameters of poultry were evaluated.…”

“…Regarding the rapeseed meal use, the results obtained by Oryschak et al (2020) showed that including two different varieties of rapeseed, meal or cake (20%) in laying hens' diet indicated a SFA content decrease in the experimental groups compared to the C group (between 27.00% and 27.44%), while the MUFA content increased, although insignificant (P > 0.05) compared to the C group. The PUFA content decreased in all experimental groups compared to the C group, the tendency was observed also in PUFA ω-3 and ω-6 content.…”

“…The recommended levels for rapeseed meal used in laying hens' diets was optimal, ranging between 4 and 10% (Perez-Maldonado et al 2003), but good results were obtained without affecting the health and performance of the birds at a higher inclusion rate (Ciurescu 2009;Gheisari and Ghayor 2014;Oryschak et al 2020). However, the Hy-Line International Company (2010) recommends restricting the use of rapeseed meal because it can affect the egg sensory quality by changing their taste, printing a fish hue when the inclusion level in diet is higher than 12%.…”

Nutrient profile and effects of carinata meal as alternative feed ingredient on broiler performance, tight junction gene expression and intestinal morphology

“…This might be due to a longer rearing period of laying hens compared to the broilers along with feeding cultivars with varying level of glucosinolate and erucic acid. Previous chicken studies with Brassica products have recommended inclusion levels ranging from 5 to 25%, largely because of variable nutrient profiles and different glucosinolate levels present in different Brassica products ( Oryschak et al., 2020 ). Ashnie et al.…”

Glucosinolates in Rape and Camelina: Composition, Concentrations, Toxicity and Anti-Nutritive Effects in Poultry, Methods of Neutralization — A Mini-Review

“…У коричневых кур-несушек при добавлении 30 % рапсового жмыха или шрота к рациону (контроль -без добавок) достоверно (p < 0,01) снижалась масса яиц, переваримость сухого вещества рационов на 5 %, сырого протеина -на 4 %, использование валовой энергии -на 7 %, а также переваримость всех незаменимых аминокислот, за исключением триптофана. Из положительных эффектов отмечено достоверное (р < 0,01) повышение на 1,6 % содержания мононенасыщенных жирных кислот (МНЖК) в желтке (27). То, что перечисленные негативные эффекты связаны именно с антипитательными веществами рапса (ГЛ и эруковой кислотой), подтверждается результатами другого опыта, в котором изучали влияние экспеллерного шрота (7 и 14 % в рационе против 30 % в опыте M.A.…”