Replacing canola meal as the major protein source with wheat dried distillers’ grains alters omasal fatty acid flow and milk fatty acid composition in dairy cows

ChibisaG., E.; ChristensenD., A.; MutsvangwaT.,

doi:10.4141/cjas2012-095

Cited by 5 publications

(6 citation statements)

References 28 publications

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“…The present study found reduced SFA in milk by feeding WDG, which is similar to a previous study containing increasing amounts of WDG in the concentrate mix (60 and 120 g kg −1 on DM basis) of lactating ewes 38 . However, several studies found no significant differences in the SFA concentrations in milk from 60 up to 200 g kg −1 DM inclusion levels of WDG 39,40 . The reduction of SFA was reported to be due to either a higher secretion of long‐chain FA from the blood and/or a lower de novo synthesis of FA in the mammary gland 38 .…”

Section: Discussionsupporting

confidence: 89%

“…46 The increased milk concentrations of key FA such as LA, ALA and RA were also found in previous studies when feeding cows WDG, instead of barley silage or corn grain and soybean meal or canola meal. [38][39][40] In the present study, dietary LA intake was higher when WDG was fed (which may explain the increase in milk LA concentrations), while the transfer rates from feed to milk were lower, thus indicating extensive biohydrogenation, which may have increased the synthesis of VA in the rumen and RA in the mammary gland 34,46 and explain their higher concentrations in milk. Despite the higher feed-to-milk transfer rate of LA in cows fed RSM, milk from RSM cows had lower concentrations in LA, indicating that the higher intakes of LA when cows fed WDG (+44%; +30 g d −1 ) were enough to increase milk LA concentrations but also provide adequate substrate for the higher synthesis of VA and RA (which originate from dietary LA and ALA 34,46 ).…”

Section: Discussionmentioning

confidence: 46%

“…38 However, several studies found no significant differences in the SFA concentrations in milk from 60 up to 200 g kg −1 DM inclusion levels of WDG. 39,40 The reduction of SFA was reported to be due to either a higher secretion of longchain FA from the blood and/or a lower de novo synthesis of FA in the mammary gland. 38 WDG diets contained higher levels of long-chain FA in this study, which might result in decreased milk SFA.…”

Section: Discussionmentioning

confidence: 99%

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Effect of dietary protein source and Saccharina latissima on nutritional and safety characteristics of milk

Wang,

Ormston,

Płatosz

et al. 2024

J Sci Food Agric

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BackgroundWheat distillers' grains (WDG) and seaweeds are recommended as alternative protein sources and enteric methane mitigators in dairy cow diets, respectively, but little is known about their impact on milk quality and safety. In the present study, 16 cows in four 4 × 4 latin squares were fed iso‐nitrogenous diets (50:50 forage: concentrate ratio), with rapeseed meal (RSM)‐based or WDG‐based concentrate (230 and 205 g kg−1 DM) and supplemented with or without Saccharina latissima.ResultsReplacement of RSM with WDG enhanced milk nutritional profile by decreasing milk atherogenicity (P = 0.002) and thrombogenicity (P = 0.019) indices and the concentrations of the nutritionally undesirable saturated fatty acids, specifically lauric (P = 0.045), myristic (P = 0.022) and palmitic (P = 0.007) acids. It also increased milk concentrations of the nutritionally beneficial vaccenic (P < 0.001), oleic (P = 0.030), linoleic (P < 0.001), rumenic (P < 0.001), α‐linolenic (P = 0.012) acids and total monounsaturated (P = 0.044), polyunsaturated (P < 0.001), and n‐6 (P < 0.001) fatty acids. Feeding Saccharina latissima at 35.7 g/cow/d did not affect the nutritionally relevant milk fatty acids or pose any risk on milk safety, as bromoform concentrations in milk were negligible and unaffected by the dietary treatments. It however slightly reduced milk concentrations of pantothenate.ConclusionFeeding WDG to dairy cows improved the milk FA profiles, by increasing the concentrations of the nutritionally beneficial fatty acids and reducing the concentration of the nutritionally undesirable saturated fatty acids; while feeding seaweed slightly reduced pantothenate concentrations. However, when considering the current average milk intakes in the population, the milk compositional differences between treatments in this study appear relatively small to affect human health.This article is protected by copyright. All rights reserved.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 46%

Section: Discussionmentioning

confidence: 99%

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Effect of dietary protein source and Saccharina latissima on nutritional and safety characteristics of milk

Wang,

Ormston,

Płatosz

et al. 2024

J Sci Food Agric

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“…It could be used as a substitute to barley (up to 15%), as demonstrated by Damiran and McKinnon [175], but they found no significant change in the performance of steers. Besides, the milk yield was significantly increased in cattle supplemented with rapeseed meal (compared to those fed with soybean meal) [176,177], and in a combination of rapeseed meal with wheat distillers' dried grains with soluble [178], or as a substitution for wheat [179]. Incorporating rapeseed meals in pig diet was limited to 25% [180] since they only could tolerate 2 to 2.5 µmol/g of glucosinolates [151,181].…”

Section: Animal Foddermentioning

confidence: 99%

Rapeseed (Brassica napus): Processing, Utilization, and Genetic Improvement

Raboanatahiry

et al. 2021

Agronomy

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Brassica napus is a vegetable oil crop, commonly known as rapeseed (or canola). It is widely used as a source of oil and protein for food and industrial applications, but also as a remedy, and in a field of attraction or as an ornament due to its diverse flower colors. Every part of rapeseed is useful, even the waste, which could be used to feed animals, or recycled. In this review, the use of rapeseed in these applications is presented, starting with the preparation of oil and protein from the seeds, before their release in the market, to the utilization of natural unprocessed rapeseed. Progress in rapeseed exploitation for food, remedy, energy source, and industrial applications are analyzed to show variability in diverse findings, to provide insights and progressive descriptions of rapeseed usage to other scholars. Moreover, advancements in breeding for rapeseed improvement were described. In the future, strategies could be developed or improved to avoid or decrease crop losses, but also to increase interest in propagating the valuable traits of rapeseed.

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“…Nonetheless, it is likely that fat remaining after centrifugation is tightly adhered to the feed particles and as a result less likely to undergo BH in the rumen. In a recent attempt to study the flow of FA in cattle consuming wheat DG, Chibisa et al (2013) added wheat DG to the ration by replacing canola meal at 10, 15, and 20% of the diet DM. In these diets the concentration of C18:2, C18:1, and C16:0 increase with increasing levels of wheat DG.…”

Section: Milk Fatmentioning

confidence: 99%

Invited Review: Ethanol co-products for dairy cows: there goes our starch … now what?

et al. 2013

Self Cite

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Paz, H. A., Castillo-Lopez, E., Ramirez-Ramirez, H. A., Christensen, D. A., Klopfenstein, T. J. and Kononoff, P. J. 2013. Invited Review: Ethanol co-products for dairy cows: there goes our starch … now what? Can. J. Anim. Sci. 93: 407–425. The rise of the grain-ethanol industry has resulted in a dramatic increase in the availability of feed co-products namely, distillers’ grains with solubles (DG). The cost of feeds that have traditionally been used for energy continues to increase and there is a need to understand the potential impact of replacing these feeds with DG on milk yield and composition. Using the Dairy National Research Council (2001) model and data from a total of 25 published studies (81 observations), we used a meta-analytical procedure to evaluate the impact of feeding corn milling co-products on lactating dairy cows. Based on our model, the inclusion of DG did not affect dry matter intake (P=0.35) but a trend for an increase in milk yield was observed (P=0. 10). Additionally, the percentages of milk fat and protein in the milk were not affected (P=0.24 and 0.25, respectively). The modeled daily rumen outflow of Lys in grams was significantly (P<0.01) reduced and Met was not affected (P=0.79) when DG were included. The error associated with net energy of lactation allowable milk averaged 5.0±1.0 kg d−1 and was not affected by DG (P=0.79) but the error associated with metabolizable protein allowable milk tended (P=0.10) to be higher for cows consuming DG by 1.4±1.2 kg d−1.

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Replacing canola meal as the major protein source with wheat dried distillers’ grains alters omasal fatty acid flow and milk fatty acid composition in dairy cows

Cited by 5 publications

References 28 publications

Effect of dietary protein source and Saccharina latissima on nutritional and safety characteristics of milk

Effect of dietary protein source and Saccharina latissima on nutritional and safety characteristics of milk

Rapeseed (Brassica napus): Processing, Utilization, and Genetic Improvement

Invited Review: Ethanol co-products for dairy cows: there goes our starch … now what?

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