Effects of heat treatment on the apparent and standardized ileal digestibility of amino acids in canola meal fed to growing pigs

Almeida, F. N.; Htoo, J. K.; Thomson, J.; Stein, Hans H

doi:10.1016/j.anifeedsci.2013.09.009

Cited by 68 publications

(48 citation statements)

References 26 publications

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“…This was possibly due to a greater thermal treatment of DK Cabernet RSM (desolventisation temperature 115.9 o C) which may have led to a reduction in CP, protein solubility and increased the NDF content. Almeida et al (2014) found that autoclaving canola meal at 130 o C for 45 min raised the content of NDF from 334 g/kg DM to 469 g/kg DM. Nia and Ingalls (1992) reported that the increase in content of NDF might be due to the ability of fibre to bind with dietary protein during the thermal treatment as some of the heat denaturated proteins are recovered in NDF fraction.…”

Section: Discussionmentioning

confidence: 99%

The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

Kasprzak

Houdijk

Olukosi

et al. 2017

Animal Feed Science and Technology

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The current study assessed the effect of rapeseed variety and oil extraction process on the apparent and standardised ileal digestibility (AID, SID) of crude protein (CP) and amino acids (AA) in rapeseed co-products in broiler chickens. PR46W21 and DK Cabernet rapeseed varieties were de-oiled by soft and standard hexane extraction, producing soft rapeseed meal (SRSM) and rapeseed meal (RSM), respectively. The soft, non-standard hexane extraction method was designed to reduce heat treatment that occurs prior to hexane extraction in order to maximise potential genetic differences in digestibility values of rapeseed co-products. The test meals were incorporated into semi-synthetic diets at a level of 500 g/kg; diets were fed to 14-day old paired chickens (n=6 pairs) for ten days, when ileal digesta was collected post-slaughter from Meckel's diverticulum to the ileal-caecal junction.The AID and SID of CP and AA were determined using titanium dioxide as inert dietary marker. The variety PR46W21 showed a greater AID and SID of CP, arginine, leucine, methionine, cysteine, phenylalanine, valine and lysine in RSM compared to the DK Cabernet RSM (p < 0.05). The soft processing increased AID and SID of CP, histidine and lysine in SRSM of PR46W21 and DK Cabernet compared to their RSM counterparts (p<0.05). An interaction between variety and processing was only observed for AID and SID of tryptophan (p < 0.001), as only in PR46W21 standard processing reduced the tryptophan SID compared to its soft processed counterpart. The data support the view that the selection of rapeseed variety and modification of thermal treatment during the oil extraction might improve nutritional value of rapeseed meals.

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Section: Discussionmentioning

confidence: 99%

The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

Kasprzak

Houdijk

Olukosi

et al. 2017

Animal Feed Science and Technology

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“…The ratio of UFA/SFA decreased from 6.0 to 4.0, while the ratio of PUFA/SFA from 2.2 to 1.6. Discussion The initial composition of the investigated meal was within the range presented in the literature (Jensen et al, 1995;Wiąz et al, 2005;Almeida et al, 2014). The biological value of protein for animal critically depends on a few amino acids: lysine, threonine, tryptophan and sulphur amino acids.…”

Section: Resultsmentioning

confidence: 75%

“…The biological value of protein for animal critically depends on a few amino acids: lysine, threonine, tryptophan and sulphur amino acids. When comparing the amino acid content in the tested meal with the literature data (Perttilä et al, 2002;Almeida et al, 2014), the content of lysine, threonine and tryptophan in the investigated fresh meal was in accordance with the reference values and remained at similar, acceptable level at the end of the experiment. Referring to sulphur amino acids, their relatively high content in fresh investigated meal was found, however considerable quantitative losses of methionine and cysteine after experiment were observed.…”

Section: Resultsmentioning

confidence: 84%

Changes in chemical composition of rapeseed meal during storage, influencing nutritional value of its protein and lipid fractions

Bojanowska

2017

J. Anim. Feed Sci.

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“…In addition, since the later is cafeteria leftover, there was a chance for the food to be exposed to heat treatment during cooking and such kind of heat treatment increases digestibility of food (Almeida et al 2014). Absence of variation in crude protein digestibility among dietary treatments might be due in part to the influence of the proportion of the mix in the diets.…”

Section: Digestibilitymentioning

confidence: 99%

Effects of different proportions of dried cafeteria leftover inclusion in a concentrate mix on performance of growing pigs

Amene¹,

Urge²,

Eshetu³

et al. 2018

Sci. Technol. Arts Res. J.

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Article InformationAn experiment was conducted to evaluate the effect of inclusion of dried Cafeteria leftover (DCLO) at various levels in concentrate mix (CM) on feed intake, digestibility, average daily gain (ADG), feed conversion ratio (FCR), carcass characteristics, and economic benefits of weaned pigs at Haramaya university piggery. Twenty Yorkshire pigs with initial live weight of 19.89±0.297kg (mean±SE) were randomly assigned to four dietary treatments in a completely randomized block design each with five replicates. The experimental rations were sole CM (mixture of maize grain, wheat short, wheat bran, noug seed cake, soybean mill, vitamin premix and salt), replacement of the concentrate with DCLO at different proportions as (33%CM and 67% DCLO; 67% CM and 33% DCLO) and feeding with only sole DCLO. The mean feed intake ranged 1.6-1.82kg/day and ADG was 0.4-0.64kg/day. The least feed intake was for sole DCLO (P<0.05) and the highest for 67% CM:33%DCLO. The FCR (w/w) was lowest (P<0.05) for pigs fed 33% DCLO diet, and pigs fed 67% DCLO:33%CM achieved highest FCR. Crude protein digestibility did not differ between treatments, but DM, EE and CF digestibility increased with increasing level of DCLO in the diets. The mean carcass weight (43.7kg-57.02kg) was highest in 67% CM but lowest in sole DCLO. Back fat thickness (2.4cm-3.2cm (SEM=±0.03)) was lowest in sole CM but highest in sole DCLO. The highest and lowest (P<0.05) rib eye area (23.9 cm 2 -31.9cm 2 (SEM=±0.81)) were recorded for sole CM and sole DCLO, respectively. Cost of feed per kg weight gain was declined significantly (P<0.01) with increasing level of DCLO. Despite the lower production cost of sole DCLO groups, the pigs showed lower performance and this must have contributed to lowest net return of the groups. Thus, it is concluded that DCLO can replace the conventional concentrate mix up to 67% without adverse effect on pig performance.

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Effects of heat treatment on the apparent and standardized ileal digestibility of amino acids in canola meal fed to growing pigs

Cited by 68 publications

References 26 publications

The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

Changes in chemical composition of rapeseed meal during storage, influencing nutritional value of its protein and lipid fractions

Effects of different proportions of dried cafeteria leftover inclusion in a concentrate mix on performance of growing pigs

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