Protection Des Protéines Alimentaires Contre La Désamination Bactérienne Au Niveau Du Rumen. Ii. — Études « in Vivo » Sur Moutons Fistulés

Leroy, Françoise; Zelter, S. Z.; Naville, Marguerite; Legrand, Catherine

doi:10.1051/rnd:19700305

Cited by 9 publications

(2 citation statements)

References 1 publication

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“…The experimental treatment had the least effect on the concentration of butyric acid. In their work with sheep Leroy & Zelter (1970) found little change in the concentration of the volatile fatty acids in the ru men, even when ingredients were fed which had been treated with tannins to re duce fermentation in the rumen. They did, however, register a lower concentration of butyric acid when ingredients treated with tannins were fed.…”

Section: Volatile Fatty Acidsmentioning

confidence: 99%

The influence of slowly and rapidly degradable concentrate protein on a number of rumen parameters in dairy cattle.

Veen¹

1986

NJAS

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In 5 trials with Dutch Black Pied or Dutch Black Pied X Holstein-Friesian cows the effects of feeding concentrates with rapidly and slowly degradable protein on rumen values were investigated. Samples of rumen fluid were taken before and 45, 90, 135 and 180 min after the morning concentrate feed. Rumen pH was not affected by protein degradability. Rumen ammonia content was higher when easily degradable protein was given than when slowly degradable protein was given; peak concentration varied from 10 to 12.5 and from 4 to 8 mmol/litre, respectively. Maximum concentration of lactate was not influenced by protein degradability. Rumen content of volatile fatty acids increased more rapidly when the slowly degradable protein rather than when the rapidly degradable protein was given. At all sampling times the molar acetate:propionate ratio was higher after feeding on slowly degradable protein than after rapidly degradable protein. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Section: Volatile Fatty Acidsmentioning

confidence: 99%

The influence of slowly and rapidly degradable concentrate protein on a number of rumen parameters in dairy cattle.

Veen¹

1986

NJAS

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“…Chez le lapin, l'ingestion pendant 15 jours de 0,5 g de tanin de chêne/kg de poids corporel/jour provoque aussi une gastrite hémorragique avec lyse des cellules de la muqueuse [5,7], Les travaux concernant les sécrétions digestives, portent principalement sur l'activité des enzymes protéolytiques en présence de tanin. D'après Leroy et al [12], l'hydrolyse pepsique des protéines d'un tourteau d'arachi des contenant 150 g de tanin/kg serait peu affectée et ne diminuerait que de 5%. On possède davantage de renseignements sur l'activité de la trypsine, et F eeny [8] a étudié récemment l'hydrolyse, par cette enzyme, de la caséine à l'état de complexes tanin-caséine formés à pH 5.0 et observé qu'elle est inver sement proportionnelle à la concentration en tanin, les tanins «condensés» étant des inhibiteurs beaucoup plus puissants que les tanins «hydrolysables».…”

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Effet de I’acide tannique sur la sécrétion gastrique chez le rat

Mitjavila¹,

Blanquat²,

Derache³

1973

Ann Nutr Metab

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We have studied the effect of tannic acid on gastric secretion in the stomach of the rat [Shay et al., 1945]. Using both single and repeated dosages, our findings disclose: The administration of a single dose (30 mg/kg body weight) of tannic acid has no influence on the secretory capacity of the stomach, but inhibits the peptic activity of the gastric juice and partly precipitates the mucin which, normally, plays a protective role. Tannic acid administered at repeated dosages increases the secretion of pepsin and free acidity and reduces the concentration of mucin in the gastric juice; we have detected no case of gastric ulceration. On the whole, however, these results can be compared with ulcerogenic conditions observed in denutrition; it must be mentioned that rats subjected to diets containing tannic acid, despite a very rich diet from the point of view of growth resemble under-nourished animals in their behavior.

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Sal (Shorea robusta) seed meal asa cattle feed

Santhanam

Nath

1983

Agricultural Wastes

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Protection Des Protéines Alimentaires Contre La Désamination Bactérienne Au Niveau Du Rumen. Ii. — Études « in Vivo » Sur Moutons Fistulés

Cited by 9 publications

References 1 publication

The influence of slowly and rapidly degradable concentrate protein on a number of rumen parameters in dairy cattle.

The influence of slowly and rapidly degradable concentrate protein on a number of rumen parameters in dairy cattle.

Effet de I’acide tannique sur la sécrétion gastrique chez le rat

Sal (Shorea robusta) seed meal asa cattle feed

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