Digestion and Duodenal Flow of Ammonia-Treated Straw, and Sodium Hydroxide-Treated Straw Supplemented with Urea, Soybean Meal or Fish Viscera Silage

Borhami, B. E. A.; Johnsen, Freddy

doi:10.1080/00015128109435705

Cited by 15 publications

(4 citation statements)

References 8 publications

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“…Injection of anhydrous ammonia into a sheeted stack (Sundst0l, Coxworth and Mowat, 1978) has been used to produce treated straws which were offered to wether sheep (Lawlor and O'Shea, 1979;Gordon and Chesson, 1983) or to rams (Borhami and Johnsen, 1981). Either aqueous or anhydrous ammonia can be used in the stack method; the former is generally used in the UK whereas in Scandinavia the latter is more common.…”

Section: Introductionmentioning

confidence: 99%

The effect of ammonia treatment on the intake of straw and hay when offered with rations of concentrates to ewes in late pregnancy

1985

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Finnish Landrace x Dorset Horn ewes were offered 300, 600 or 900 g fresh weight per day of concentrates and forage ad libitum from day 105 of pregnancy until lambing. Spring barley straw (S) or hay (H) was offered either untreated (U) or following treatment with anhydrous ammonia in an oven (T). Organic matter digestibilities (in vitro) were 0-42, 0-58, 0-42 and 0-60 and nitrogen contents were 7-2, 18-6, 12-0 and 25 0 g/kg dry matter for US, TS, UH and TH respectively. Forage intake did not differ between ewes carrying two or more foetuses but the small number of ewes carrying one foetus ate more straw (6-8 v. 4-5 g organic matter (OM) per kg live weight) than ewes carrying two or more foetuses. Ammonia treatment increased intake; the increase was larger on straw (4-6 v. 100 g OM per kg live weight) than on hay (9-0 v. 10-7 g OM per kg live weight). Replacement rates of forage by concentrates were -0-21, +0-06, -0-48 and +0-08 kg forage per kg concentrates for treatments US, TS, UH and TH respectively; only the value for treatment UH differed significantly from zero. On most treatments forage intake decreased as pregnancy progressed and the declines were greater when treated forages were offered. Concentrate level had a large effect on most aspects of ewe performance. Ewes offered treated forage gained slightly more weight in pregnancy (138 v. 104 g/day), had a slightly smaller decrease in body condition score (-0-54 v. -0-68) between day 105 and lambing but did not have greater lamb birth weights than ewes on untreated forage.

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Section: Introductionmentioning

confidence: 99%

The effect of ammonia treatment on the intake of straw and hay when offered with rations of concentrates to ewes in late pregnancy

1985

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“…Also urea can be used as a nitrogen supplement in diets of sodium hydroxide treated roughages (hliller et al 1977;@rskov & Grubb, 1978;Gihad, 1979;Ali & Sorensen, 1979). Previous studies (Borhami & Johnsen, 1981), showed that rumen fermentation and nitrogen utilization were apparently similar in sheep fed barley based concentrate mixtures plus either sodium hydroxide treated straw supplemented with various sources of nitrogen or ammonia treated straw. It has been shown that the beneficial effect of ammonia treatment of straw was more evident when fed with low concentrate than with high concentrate diets to growing animals (Horton, 1978 andGarret et al, 1979).…”

Section: Introductionmentioning

confidence: 95%

Nitrogen Utilization in Sheep when Feeding Either Sodium Hydroxide Treated Straw Plus Urea or Ammonia Treated Straw

Borhami

Sundst⊘l

Harstad

1983

Acta Agriculturae Scandinavica

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“…La plupart des travaux réalisés jusqu'ici ont mis en évidence l'effet positif du traitement à l'ammoniac sur la teneur en azote, les quantités ingérées et la valeur énergéti-que. Cependant, malgré l'enrichissement des fourrages en azote, l'augmentation de la valeur azotée est plus faible que prévue aussi bien pour la paille (Borhami et Johnson, 1981;Dulphy et aL, 1984a) que pour le foin (Dulphy et al, 1984b;Benhamed et Dulphy, 1986). En effet, le traitement à l'ammoniac des foins et des pailles entraîne une augmentation anormale de l'azote excrété dans les fèces (Benhamed et Dulphy, 1985Dulphy, et 1986Ramihone, 1987).…”

Section: Introductionunclassified

Influence du traitement des fourrages à l'ammoniac sur leur dégradation azotée dans le rumen

Michalet-Doreau¹,

Guedes²

1989

Ann. Zootech.

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Digestion and Duodenal Flow of Ammonia-Treated Straw, and Sodium Hydroxide-Treated Straw Supplemented with Urea, Soybean Meal or Fish Viscera Silage

Cited by 15 publications

References 8 publications

The effect of ammonia treatment on the intake of straw and hay when offered with rations of concentrates to ewes in late pregnancy

The effect of ammonia treatment on the intake of straw and hay when offered with rations of concentrates to ewes in late pregnancy

Nitrogen Utilization in Sheep when Feeding Either Sodium Hydroxide Treated Straw Plus Urea or Ammonia Treated Straw

Influence du traitement des fourrages à l'ammoniac sur leur dégradation azotée dans le rumen

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