Use of rapeseed and pea grain protein supplements for organic milk production

Khalili, Hannele; Kuusela, Eeva; Saarisalo, Eeva

doi:10.23986/afsci.5626

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…Moist heat pressure (MHP, autoclaving, 117 kPa 127 o C 15 or 30 min) treatment of canola meal induced partial protein denaturation to decrease the ruminal protein degradability and increase ruminal bypass-AA for digestion and absorption in the small intestine (Moshtaghi Nia & Ingalls, 1992. Wright et al (2005) reported dietary inclusion of MHP solvent-extraction canola meal (2% H 2 O 100 o C 120 min) increased milk production in dairy cows by 0.5 kg per d. Although, Khalili et al (1999) found the dietary inclusion of control and MHP rapeseed cold-press cake elicited similar milk responses in mid-lactation dairy cattle.…”

Section: Introductionmentioning

confidence: 99%

Effect of Dry Heat Temperature and Moist Heat Pressure on Canola Meal for Ruminant Utilisation. Part I: Nutritional, Protein Solubility and Degradability Characteristics

Heim¹,

Krebs²

2018

JAS

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The effects of a range of barrel dry heat temperatures (20 to 180 oC), and moist heat pressure (MHP) (120 oC 15 min 192 kPa) on general nutritional, protein solubility, and in vitro protein degradability characteristics of canola meal were investigated. Increasing dry heat temperature was negatively correlated with meal crude protein (CP), soluble CP, neutral detergent fibre, acid detergent insoluble CP, and rapidly degradable (B1 Fraction) protein; and positively with NPN, intermediately degradable (B2 Fraction) protein, dry matter, lipid, carbohydrate, and in vitro rumen-undegradable protein. Relative to control meal, MHP increased in vitro rumen-undegradable protein, and in vitro CP digestibility; and decreased soluble protein, and 0.5% KOH solubility. Positive increases of Fraction A and B2, as B1 decreased, suggest barrel temperature induces protein hydrolysis and conversion of rapidly to intermediately degraded protein, respectively. The changes observed may have a great effect on ruminal degradation and supply of protein and AA for ruminant utilisation.

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Section: Introductionmentioning

confidence: 99%

Effect of Dry Heat Temperature and Moist Heat Pressure on Canola Meal for Ruminant Utilisation. Part I: Nutritional, Protein Solubility and Degradability Characteristics

Heim¹,

Krebs²

2018

JAS

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“…When diets of dairy cows were supplemented with MHP-treated cold-pressed rapeseed ( Brassica rapa L. oleifera subv. annua ) cake, milk yields increased relative to an untreated rapeseed meal [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Expeller Barrel Dry Heat and Moist Heat Pressure Duration Induce Changes in Canola Meal Protein for Ruminant Utilisation

Heim

Krebs

2018

Animals

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Simple SummaryCanola meal, a by-product of oil production from canola seed, is a source of protein commonly incorporated into dairy and feedlot rations. Processing conditions and pressure treatments can alter the quality of protein in canola meal. In this study, the impact of expeller dry heat and moist heat pressure duration time on general nutritional properties, in vitro protein degradability, Maillard reaction product formation, and molecular and microscopic structural characteristics of canola meal were investigated. Increased dry heat temperature rapidly increased digestible protein and non-protein nitrogen content, and constricted amide II secondary structure. Increased moist heat pressure treatment duration promoted browning, and the conversion of protein to more intermediately and slowly degradable forms. Dry heat and moist heat pressure affected meal protein solubility and protein and lipid-related functional groups. Moist heat pressure fragmented canola meal into enzyme-resistant aggregates with crevices containing oil bodies. Induced changes may impact the supply of protein and amino acids and subsequently the yield and composition (protein and lipid) of milk produced by dairy cows. These findings benefit producers of canola meal by further describing the effects of processing and treatment conditions on protein characteristics, particularly those which affect the production potential of ruminants fed canola meal as a source of protein.AbstractTo improve the protein nutritional quality of canola (Brassica napus L.) meal, further investigation of the effects of processing conditions and post-production treatments is desirable. The impact of barrel dry heat temperature (20 °C (cold press) and 100 °C (expeller)) and moist heat pressure (MHP) duration time on general nutritional properties, Maillard reaction product (MRP) formation, in vitro protein degradability, and molecular and microscopic structural characteristics of canola meals were investigated. Increased MHP duration reduced (p < 0.05) dry matter, soluble protein, rapidly degradable protein, yellowness (early MRP), whiteness (late MRPs), absorbance at 294 nm (intermediate MRPs), and amide I; and increased (p < 0.05) non-protein N, neutral detergent fibre, neutral detergent insoluble crude protein (CP), intermediately and slowly degradable protein, in vitro effective CP degradability, redness, degree of colour change, and browning. Increased dry heat temperature reduced (p < 0.01) CP and rapidly degradable protein, constricted amide II, reduced (p < 0.05) protein solubility in 0.5% KOH and increased (p < 0.05) acid-detergent fibre and intermediate MRPs. Browning index and redness exhibited potential as rapid indicators of effective CP degradability and soluble protein, respectively. Dry heat and MHP altered (p < 0.05) lipid-related functional groups. Dry heat affected napin solubility, and MHP altered cruciferin and napin solubility. Application of MHP induced the formation of proteolysis-resistant protein aggregates with crevices containing oil ...

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“…The FFRS has a relatively slow release of fat compared with pure oils, and crushed FFRS can be fed in amounts of 1-2 kg per day with only small effects on cow metabolism (Murphy et al 1987;Jenkins 1993). Coldpressed rapeseed cake (CRC), which is a co-product of rapeseed oil production, can be produced locally and has been proven to be suitable for dairy cows (Johansson and Nadeau 2006), although only a few studies have reported the production response of CRC (Khalili et al 1999;Johansson and Nadeau 2006;Lerch et al 2012). In a study with scenario calculations, CRC was found to result in a lower financial output than FFRS (Mogensen 2004).…”

Section: Introductionmentioning

confidence: 99%

Cold-pressed rapeseed cake or full fat rapeseed to organic dairy cows—milk production and profitability

et al. 2015

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The interest in growing and feeding locally produced feeds is increasing. Case studies in Sweden have shown that feeds grown on-farm are more environmentally favourable than imported feeds, partly due to the lower energy requirements for transport. Full fat rapeseed (FFRS) and its co-product cold-pressed rapeseed cake (CRC) can both be locally produced, and CRC has been proven to be suitable for dairy cows. In both feeds, fat content limits the amount that can be supplemented in the diet, and less FFRS than CRC can be used. However, in a previous study with scenario calculations, CRC showed lower profitability than FFRS. The present study examined how milk yield and milk composition were influenced by feeding FFRS compared with CRC in organic diets and calculated the farm profitability on each occasion. The study was performed using 56 Swedish Holstein cows in different lactation stages. Diets were 100 % organic, including a mixed ration (silage, grains and minerals) fed ad libitum and a restricted amount of concentrates (field beans together with either CRC or ground FFRS). There were no significant differences in milk yield and composition between the diets. However, cows fed FFRS had a higher intake of the mixed ration than cows fed CRC.Cows fed CRC had the highest profitability in later lactation, whereas the diets were economically similar during early lactation.

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Use of rapeseed and pea grain protein supplements for organic milk production

Cited by 10 publications

References 28 publications

Effect of Dry Heat Temperature and Moist Heat Pressure on Canola Meal for Ruminant Utilisation. Part I: Nutritional, Protein Solubility and Degradability Characteristics

Effect of Dry Heat Temperature and Moist Heat Pressure on Canola Meal for Ruminant Utilisation. Part I: Nutritional, Protein Solubility and Degradability Characteristics

Expeller Barrel Dry Heat and Moist Heat Pressure Duration Induce Changes in Canola Meal Protein for Ruminant Utilisation

Cold-pressed rapeseed cake or full fat rapeseed to organic dairy cows—milk production and profitability

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