The Use of Chromic Oxide as an Index for Determining the Digestibility of a Diet Two Figures

Schürch, A.; Lloyd, L. E.; Crampton, E. W.

doi:10.1093/jn/41.4.629

Cited by 236 publications

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“…NDF and ADF analyses were conducted following the procedure of Van Soest et al (1991). Chromic oxide was determined using the method of Schürch et al (1950). Soluble dietary fiber (SF) and ISF were determined by AOAC Method 991.4.…”

mentioning

confidence: 99%

Effects of konjac flour inclusion in gestation diets on the nutrient digestibility, lactation feed intake and reproductive performance of sows

Sun

Zhou

Tan

et al. 2014

animal

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This study was conducted to investigate the effects of konjac flour (KF) inclusion in gestation diets of sows on nutrients digestibility, lactation feed intake, reproductive performance of sows and preweaning performance of piglets. Two isoenergetic and isonitrogenous gestation diets were formulated: a control diet and a 2.1% KF-supplemented diet (KF diet). Both diets had the same NDF and insoluble fiber (ISF) levels, but the KF diet had higher soluble fiber (SF) level. The day after breeding, 96 multiparous sows were assigned to the two dietary treatments. Restrict-fed during gestation, in contrast, all sows were offered the same lactation diet ad libitum. Response criteria included sow BW, backfat depth, lactation feed intake, weaning-to-estrus interval, litter size and piglet's weight at parturition and day 21 of lactation. On day 60 of gestation, 20 sows were used to measure nutrient digestibility. Results showed that the digestibility of dry matter, gross energy, crude fiber and ADF were not affected by the dietary treatments. The inclusion of KF in gestation diets increased NDF digestibility (P < 0.05) and tended to increase the digestibility of CP (P = 0.05) compared with the control diet group. In addition, dietary treatment during gestation did not affect litter size, BW and backfat gain during gestation, lactation weight, backfat loss or weaning-to-estrus interval of sows. However, sows fed the KF diet consumed more (P < 0.05) lactation diet per day than sows in the control group. Accordingly, sows fed the KF diet showed greater average piglet weights on day 21 of lactation (P = 0.09), and the litter weight of sows fed the KF diet on day 21 of lactation increased by 3.95 kg compared with sows fed the control diet (not significant). In conclusion, the inclusion of KF in gestation diets increased lactation feed intake of sows and tended to improve litter performance.

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confidence: 99%

Effects of konjac flour inclusion in gestation diets on the nutrient digestibility, lactation feed intake and reproductive performance of sows

Sun

Zhou

Tan

et al. 2014

animal

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“…The digestive marker, Cr 2 O 3 , was determined by spectrophotometric determination of chromate after oxidation of Cr 2 O 3 with sodium peroxide. The analysis was carried out as described by Schürch et al (1950). TiO 2 was determined as described by Myers et al (2004).…”

Section: Animals and Experimental Designmentioning

confidence: 99%

Milk production is unaffected by replacing barley or sodium hydroxide wheat with maize cob silage in rations for dairy cows

Hymøller

Hellwing

Lund

et al. 2014

Animal

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Starch is an important energy-providing nutrient for dairy cows that is most commonly provided from cereal grains. However, ruminal fermentation of large amounts of easily degradable starch leads to excessive production and accumulation of volatile fatty acids (VFA). VFA not only play a vital role in the energy metabolism of dairy cows but are also the main cause of ruminal acidosis and depressed feed intake. The aim of the present study was to compare maize cob silage (MCS) as an energy supplement in rations for dairy cows with highly rumen-digestible rolled barley and with sodium hydroxide wheat (SHW), which has a higher proportion of by-pass starch than barley. Two studies were carried out: (1) a production study on 45 Danish Holstein cows and (2) an intensive study to determine digestibilities, rumen fermentation patterns and methane emission using three rumen-cannulated Danish Holstein cows. Both studies were organised as a 3 × 3 Latin square with three experimental periods and three different mixed rations. The rations consisted of grass-clover silage and maize silage (~60% of dry matter (DM)), rapeseed cake, soybean meal, sugar beet pulp and one of three different cereals as a major energy supplement: MCS, SHW or rolled barley (~25% of DM). When MCS replaced barley or SHW as an energy supplement in the mixed rations, it resulted in a lower dry matter intake; however, the apparent total tract digestibilities of DM, organic matter, NDF, starch and protein were not different between treatments. The energy-corrected milk yield was unaffected by treatment. The fat content of the milk on the MCS ration was not different from the SHW ration, whereas it was higher on the barley ration. The protein content of the milk decreased when MCS was used in the ration compared with barley and SHW. From ruminal VFA patterns and pH measures, it appeared that MCS possessed roughage qualities with respect to rumen environment, while at the same time being sufficiently energy rich to replace barley and SHW as a major energy supplement for milk production. The environmental impact, expressed as methane emissions, was not different when comparing MCS, SHW and barley.

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“…Analysis of lactic acid (LA) and short chain fatty acids (SCFA) were performed on wet materials by the gas chromatogra phic method of Richardson et al (1989) and chromic oxide (Cr2O3) measured by the method of Schürch et al (1950). The pH was also performed on wet materiales, while the other analyses were carried out on freeze-dried materials.…”

Section: Analyses Of Feed Intestinal Contentsmentioning

confidence: 99%

The effect of increasing levels of insoluble dietary fibre on the establishment and persistence ofOesophagostomum dentatumin pigs

Petkevičius¹,

Nansen²,

Knudsen³

et al. 1999

Parasite

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Summary :This investigation compared the effect of diets with increasing content of insoluble dietary fibre (DF) on the establishment and persistence of Oesophagostomum dentatum in growing pigs. Twenty-eight worm-free pigs, from a specific pathogen-free farm were randomly divided to four groups of seven animals. The animals were assigned to the following diets: diet A, barley flour plus protein mixture (70 % : 30 %); diet B, barley flour, oat husk meal plus protein mixture (65 % : 7 % : 28 %); diet C, barley flour, oat husk meal plus protein mixture (60 % : 14%: 26 %) and diet D, barley flour, oat husk meal plus protein mixture (55 % : 21 % : 24 %). The diets were formulated to provide increasing content of DF but constant levels of digestible protein per feeding unit for pigs. All pigs were experimentally inoculated with 6,000 infective O. dentatum larvae and followed coprologically for 11 weeks post infection, whereafter they were slaughtered. The experimental diets influenced the mean transit time and the metabolism in the large intestine significantly. Diets C and D, with highest content of insoluble DF, provided favourable conditions for establishment of O. dentatum, but diets A and B led to a significant lower worm numbers and fecundity. KEY WORDS :Oesophagostomum dentatum, dietary fibre, pigs, nutrition. MOTS CLÉS :Oesophagostomum dentatum, régime en fibres, parc, nutrition. Résumé : EFFET DE RÉGIMES CONTENANT DES TAUX CROISSANTS DE FIBRES ALIMENTAIRES INSOLUBLES DANS L' INSTALLATION ET LA PERSISTANCE D'OESOPHAGOSTOMUM DENTATUM CHEZ LE PORC

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The Use of Chromic Oxide as an Index for Determining the Digestibility of a Diet Two Figures

Cited by 236 publications

References 0 publications

Effects of konjac flour inclusion in gestation diets on the nutrient digestibility, lactation feed intake and reproductive performance of sows

Effects of konjac flour inclusion in gestation diets on the nutrient digestibility, lactation feed intake and reproductive performance of sows

Milk production is unaffected by replacing barley or sodium hydroxide wheat with maize cob silage in rations for dairy cows

The effect of increasing levels of insoluble dietary fibre on the establishment and persistence ofOesophagostomum dentatumin pigs

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