Effect of formaldehyde-treated barley or escape protein on nutrient digestibility, growth and carcass traits of feedlot lambs

McAllister, Tim A.; Beauchemin, K. A.; McClelland, L. A.; Cheng, K.-J.

doi:10.4141/cjas92-038

Cited by 15 publications

(7 citation statements)

References 15 publications

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“…Lower ether extract apparent digestibility for cows fed formaldehyde-treated flaxseed compared with those fed Megalac or micronized soybeans has been reported by Petit et al (2002). Fluharty and Loerch (1989) found that N digestibility was reduced when corn was treated with 1 or 2% formaldehyde, but McAllister et al (1992) reported that treatment of barley with 0.11% formaldehyde did not affect N digestion or the amount of N retained. Fiems et al (1987) observed no difference in OM digestibility by calves fed diets with untreated or soybean meal treated with 0.2% formaldehyde, which was close to the 0.25 to 0.30% concentration applied to oilseeds in the present experiment.…”

Section: Resultsmentioning

confidence: 69%

Digestion, Milk Production, Milk Composition, and Blood Composition of Dairy Cows Fed Formaldehyde Treated Flaxseed or Sunflower Seed

Petit

2003

Journal of Dairy Science

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Forty midlactation Holstein cows averaging 635 kg of body weight (SE = 8) were allotted at wk 25 of lactation to ten groups of four cows blocked for similar calving dates to determine the effects of formaldehyde treatment of flaxseed and sunflower seed on fatty acid composition of blood and milk, milk yield, feed intake, and apparent digestibility. Cows were fed a total mixed diet based on grass silage and supplements for ad libitum intake over a 10-wk period. Cows within each block were assigned to one of the four isonitrogenous supplements based on either untreated whole flaxseed, formaldehyde-treated whole flaxseed, untreated whole sunflower seed, or formaldehyde-treated whole sunflower seed. Cows fed whole flaxseed compared with sunflower seed maintained greater dry matter (DM) intake (20.3 vs. 18.9 kg/d). Intake of DM, expressed as a percentage of body weight, was increased by adding formaldehyde to oilseeds (3.24 vs. 2.98%). Milk production was similar for cows fed flaxseed and those fed sunflower. Formaldehyde treatment of flaxseed and sunflower seed increased milk production by an average of 2.65 kg/d. Efficiency of fat-corrected milk yield per kilogram of DM intake was increased by formaldehyde treatment (1.31 vs. 1.21), and it was greater with sunflower seed than with flaxseed (1.33 vs.1.21). Protein concentration in milk was greater for cows fed flaxseed (3.38%) compared with those fed sunflower seed (3.21%) and formaldehyde had no effect. Apparent digestibility of DM was not affected by type of seed but it was greater for cows fed formaldehyde-treated seeds. Cows fed formaldehyde-treated flaxseed had the greatest apparent digestibilities of acid detergent and neutral detergent fiber compared with those fed the other diets. Apparent digestibilities of fatty acids were greater for sunflower seed than for flaxseed-based diets. In general, formaldehyde treatment had limited effect on milk fatty acid composition, suggesting that formaldehyde was not very effective in protecting polyunsaturated fatty acids against ruminal biohydrogenation. Feeding flaxseed resulted in the lowest omega 6 to omega 3 fatty acid ratio. The data suggest that both flaxseed and sunflower seed are acceptable fat sources for midlactating cows and that flaxseed increases milk protein percentage compared to sunflower seed.

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Section: Resultsmentioning

confidence: 69%

Digestion, Milk Production, Milk Composition, and Blood Composition of Dairy Cows Fed Formaldehyde Treated Flaxseed or Sunflower Seed

Petit

2003

Journal of Dairy Science

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“…Formaldehyde treatment of feeds has also been reported to have bactericidal effects without apparent loss of palatability or growth reduction in poultry (Duncan and Adams 1972), and other food animals (Vanderwal 1979; Bugarski et al. 1990; McAllister et al. 1992).…”

Section: Introductionmentioning

confidence: 99%

Organic acid and formaldehyde treatment of animal feeds to control Salmonella: efficacy and masking during culture

Carrique-Mas¹,

Bedford²,

Davies³

2007

J Appl Microbiol

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“…Despite the absence of conclusive evidence of toxicity in humans who regularly work with formaldehyde, this substance has come to be regarded as hazardous (Arts et al, 2006). However, it does not appear to cause adverse effects or tissue residues in animals given feed or rations which have been treated (Duncan and Adams, 1972;Vanderwal, 1979;Buckley and Fisher, 1984;Bugarski et al, 1990;McAllister et al, 1992;Allen, 1993). In the EU, it is permitted as a feed processing aid, pending a review of the use of biocides and preservatives in foods and feedingstocks.…”

Section: Formaldehydementioning

confidence: 99%

Chemical Treatment of Animal Feed and Water for the Control ofSalmonella

Wales

Allen

Davies

2010

Foodborne Pathogens and Disease

102

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The control of Salmonella in animal feedstuffs is important, principally to protect the human food chain from contamination by Salmonella derived from infected animals. The transmission of Salmonella from animal feeds to animals, and onward to human food products, has been convincingly documented. This is especially important for chicken breeding and laying flocks and pigs, in view of the consequences of recent or imminent control legislation in the European Union. Animal feed ingredients, particularly animal and plant-derived protein meals, are frequently contaminated with Salmonella either from source or from processing plant, and recontamination in compounding mills is an additional problem. Several complementary strategies have been used to control this feed contamination, and these include a range of chemical treatments. The principal agents used are as follows: organic acids and their salts, formaldehyde, and bacterial membrane disruptors such as terpenes and essential oils. Experimental agents include chlorate compounds. Many products use blends of agents from the same or different chemical groups to achieve synergistic or combination effects. The present review draws upon published and company data to describe the various modes of action and efficacies of different chemical agents delivered in feed or in drinking water against Salmonella occurring in feed or in livestock environments. Reasons for the failure of protection are explored, along with problems in usage such as corrosion and reduced palatability. Given the wide array of products available with contrasting modes of action, the need for standardized tests of efficacy is also discussed.

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Effect of formaldehyde-treated barley or escape protein on nutrient digestibility, growth and carcass traits of feedlot lambs

Cited by 15 publications

References 15 publications

Digestion, Milk Production, Milk Composition, and Blood Composition of Dairy Cows Fed Formaldehyde Treated Flaxseed or Sunflower Seed

Digestion, Milk Production, Milk Composition, and Blood Composition of Dairy Cows Fed Formaldehyde Treated Flaxseed or Sunflower Seed

Organic acid and formaldehyde treatment of animal feeds to control Salmonella: efficacy and masking during culture

Chemical Treatment of Animal Feed and Water for the Control ofSalmonella

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