Méthode rapide de dosage de l'oxyde de chrome dans les aliments, les fèces et les contenus digestifs par titrage après oxydation nitro-perchlorique

François, Ετιεννε; Thill, Nicole; Thewis, A.; Colinet, A.; Pichon, J. C.; Pichon, M.

doi:10.1051/animres:19780306

Cited by 22 publications

(10 citation statements)

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“…An aliquot of these samples was ground to pass a 0.5-mm screen for the total starch determination (Faisant et al, 1995). After freeze-drying and grinding (1 mm), DM, OM, N, NDF, and Cr 2 O 3 (François et al, 1978) were measured in feces pooled per animal and per period on an equal weight basis. Urinary N was also analyzed (AOAC, 1990).…”

Section: Experimental Protocol and Samples Collectionmentioning

confidence: 99%

Effect of rumen-degradable protein balance deficit on voluntary intake, microbial protein synthesis, and nitrogen metabolism in growing double-muscled Belgian Blue bulls fed corn silage-based diet1,2,3

Valkeners

Thewis

Laere

et al. 2008

Journal of Animal Science

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Section: Experimental Protocol and Samples Collectionmentioning

confidence: 99%

Effect of rumen-degradable protein balance deficit on voluntary intake, microbial protein synthesis, and nitrogen metabolism in growing double-muscled Belgian Blue bulls fed corn silage-based diet1,2,3

Valkeners

Thewis

Laere

et al. 2008

Journal of Animal Science

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“…Chromic sesquioxide was analysed in alfalfa pellets [12]. After freeze-drying and grinding (1 mm), DM, OM, crude fibre [4], N (Dumas method, [1]) and chromic sesquioxide [12] were analysed in the faeces.…”

Section: Laboratory Analysesmentioning

confidence: 99%

Suitability of lupin and pea seeds as a substitute for soybean meal in high-producing dairy cow feed

Froidmont

Bartiaux-Thill

2004

Anim. Res.

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-Two experiments were conducted to investigate the substitution of soybean meal by coarsely ground lupin and/or pea seeds in high-producing dairy cow feed. In experiment 1 (Exp. 1), four Holstein dairy cows (35.9 ± 2.2 L·d -1 milk) were put on a control diet consisting of 50% maize silage, 11% grass silage and 36% concentrates on a dry-matter (DM) basis. Soybean meal was partially replaced (75%) by lupin, pea and a mixture (1/1, DM) of lupin and pea on a DM basis, following a 4 × 4 Latin square design. Milk production was lower with pea seeds, intermediate with a lupin/ pea seed mixture and higher with lupin and soybean meal diets. Milk fat percentage increased with the lupin diet, which induced a lower proportion of medium-chain fatty acids and a higher proportion of long-chain fatty acids in the milk compared to the pea diet. In experiment 2 (Exp. 2), six Holstein dairy cows (36.0 ± 4.9 L·d -1 milk) were put on a control diet consisting of 47% maize silage, 7% grass silage and 42% concentrates on a DM basis. Soybean meal was totally replaced by lupin or a lupin/pea mixture (1/1, N) on a nitrogen basis, following a duplicated Latin square design (6 animals × 3 diets). Standard milk production did not differ with the dietary protein source but milk fat percentage was reduced with the lupin diet. This effect, not observed in Exp. 1, was probably related to the lipid content of the lupin diet. Nitrogen efficiency was not modified by the protein source. The results also showed that a high ingestion of lupin seeds induced a lower milk ω6/ω3 ratio and C 18:2 content. In conclusion, coarsely ground lupin seeds can efficiently replace soybean meal in high-producing dairy cow feed. dairy cow / soybean meal / lupin / pea / milk Résumé -Les graines de lupin et de pois en tant qu'alternative au tourteau de soja dans l'alimentation des vaches laitières hautes productrices. Deux expériences ont été menées pour étudier la substitution du tourteau de soja par du lupin et/ou du pois grossièrement moulu dans l'alimentation de la vache laitière haute productrice. Dans l'expérience 1, quatre vaches laitières Holstein (35,9 ± 2,2 L·j -1 de lait) ont reçu un régime témoin contenant 50 % d'ensilage de maïs, 11 % d'ensilage d'herbe et 36 % de concentré sur base de la matière sèche (MS). Le tourteau de soja a été partiellement remplacé (75 %) par du lupin, du pois et un mélange (1/1, MS) de lupin et de pois sur base de la MS, selon un dispositif expérimental en carré latin 4 × 4. La production laitière a été inférieure avec le pois, intermédiaire avec le mélange lupin/pois et supérieure avec les régimes lupin * Corresponding author: froidmont@cra.wallonie.be 476 E. Froidmont, N. Bartiaux-Thill et tourteau de soja. Le taux butyreux du lait a augmenté avec le régime lupin, qui a induit une plus faible proportion d'acides gras à chaîne moyenne et une plus grande proportion d'acides gras à longue chaîne comparativement au régime pois. Dans l'expérience 2, six vaches laitière Holstein (36,0 ± 4,9 L·j -1 de lait) ont reçu un régime ...

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“…Chromic sesquioxide was measured in alfalafa pellets (Francois et al, 1978). After freeze-drying and grinding (1 mm), DM, ash, N, and chromic sesquioxide were measured in feces.…”

Section: Laboratory Analysesmentioning

confidence: 99%

Determination of the methionine requirement of growing double-muscled Belgian blue bulls with a three-step method.

Froidmont

Beckers

Thewis

2000

Journal of Animal Science

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Méthode rapide de dosage de l'oxyde de chrome dans les aliments, les fèces et les contenus digestifs par titrage après oxydation nitro-perchlorique

Abstract: 5 8oo Gembloux (Belgique) (**) Chaire de Physiologie animale et de Zootechrzie, Facaslté des Sciences agronomiques de l'État, 2 , passage des Dé!ZOVtés, B 5 8 0 o Gembloux (Hel giqi Show more

Cited by 22 publications

References 0 publications

Effect of rumen-degradable protein balance deficit on voluntary intake, microbial protein synthesis, and nitrogen metabolism in growing double-muscled Belgian Blue bulls fed corn silage-based diet1,2,3

Effect of rumen-degradable protein balance deficit on voluntary intake, microbial protein synthesis, and nitrogen metabolism in growing double-muscled Belgian Blue bulls fed corn silage-based diet1,2,3

Suitability of lupin and pea seeds as a substitute for soybean meal in high-producing dairy cow feed

Determination of the methionine requirement of growing double-muscled Belgian blue bulls with a three-step method.

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