Changes in endogenous urea recycling and the handling of renal urea in pregnant and lactating Sardi sheep kept on a constant feeding level

Benlamlih, S.; Pomyers, H. de

doi:10.1051/rnd:19890201

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…Although the CP intake was higher for TRE1 and TRE2 than for CTL, the urinary nitrogen levels and the retention nitrogen of TRE1 and TRE2 were similar to those of CTL (Table 7). Ruminants have an ability to recycle urea nitrogen into the rumen for microbial protein synthesis with carbohydrates and proteins, and this ability leads to a reduction of urinary nitrogen excretion (Benlamlih & Pomyers 1989). Microbial protein synthesis is enhanced when easily fermentable carbohydrates are fed because total volatile fatty acid production increases (Hoover & Stokes 1991; Firkins 1996; Hristov & Ropp 2003).…”

Section: Discussionmentioning

confidence: 99%

Effects of adding food by‐products mainly including noodle waste to total mixed ration silage on fermentation quality, feed intake, digestibility, nitrogen utilization and ruminal fermentation in wethers

Ishida

Yani

Kitagawa

et al. 2012

Animal Science Journal

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Four wethers were used in a 4 × 4 Latin square design experiment to evaluate the applicability of two types of total mixed ration (TMR) silage with food by-products. Four food by-products (i.e., potato waste, soy sauce cake, soybean curd residue and noodle waste) were obtained and mixed with commercial concentrate (CC) as TMR silage. The two types of TMR silage, T1 and T2, each contained CC, in addition to all by-products for T1 (TRE1), and soy sauce cake and noodle waste for T2 (TRE2) on a dry matter (DM) basis. The silage was well-fermented with low pH values and high lactic acid concentration. As the experimental treatments, T1, T2 and CC (CTL) were fed with a basal diet. The result showed that the digestibility of DM and organic matter (OM) were higher for T1 than for CC (P < 0.05), while crude protein digestibility was not significantly different among T1, T2 and CC. The retained nitrogen was not affected by inclusion of food by-products. Ruminal pH in TRE1 and TRE2 immediately decreased compared to that in CTL. The study suggested that the two types of TMR silage, including food by-products, might be used as a substitute for commercial concentrate.

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Section: Discussionmentioning

confidence: 99%

Effects of adding food by‐products mainly including noodle waste to total mixed ration silage on fermentation quality, feed intake, digestibility, nitrogen utilization and ruminal fermentation in wethers

Ishida

Yani

Kitagawa

et al. 2012

Animal Science Journal

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“…Camel urine, like human urine, is acidic (pH, 6.3–7.2); thus a relatively greater fraction of SDZ (pK a , 6.5) is likely to remain in the non‐ionized rather than the ionized form in renal tubular fluid, thus promoting its back‐diffusion. The GFR in camels is 0.6 mL/kg/min (Wilson, 1984), which is much smaller than reported for cattle, sheep and goats (Baggot, 1997; Olsson et al ., 1982; Benlamlih & Depomyers, 1989). The nephron in camels is twice as long as that in cows or goats (Abdalla & Abdalla, 1977).…”

Section: Discussionmentioning

confidence: 99%

Pharmacokinetics, bioavailability and dosage regimen of sulphadiazine (SDZ) in camels (Camelus dromedarius)

Kumar¹,

Ap²,

Kapoor³

et al. 1998

Vet Pharm & Therapeutics

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The pharmacokinetics of sulphadiazine (SDZ) (100 mg/kg, body weight) were investigated in six camels (Camelus dromedarius) after intravenous (i.v.) and oral (p.o.) administration. Following i.v. administration, the overall elimination rate constant (beta) was 0.029 +/- 0.001/h and the half-life (t1/2beta) was 23.14 +/- 1.06 h. The apparent volume of distribution (Vd(area)) was 0.790 +/- 0.075 L/kg and the total body clearance (ClB) was 23.29 +/- 2.50 mL/h/kg. After p.o. administration, SDZ reached a peak plasma concentration (Cmax(cal.)) of 62.93 +/- 2.79 microg/mL at a post injection time of (Tmax(cal.)) 22.98 +/- 0.83 h. The elimination half-life was 19.79 +/- 1.22 h, not significantly different from that obtained by the i.v. route. The mean absorption rate constant (Ka) was 0.056 +/- 0.002 h(-1) and the mean absorption half-life (t1/2Ka) was 12.33 +/- 0.37 h. The mean availability (F) of sulphadiazine was 88.2 +/- 6.2%. To achieve and maintain therapeutically satisfactory plasma SDZ levels of > or = 50 microg/mL, the priming and maintenance doses would be 80 mg/kg and 40 mg/kg intravenously and 90 mg/kg and 45 mg/kg orally, respectively, to be repeated at 24 h intervals.

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Utilization of wheat stubble pastures by gestating ewes

Outmani

Luginbuhl

Guessous

et al. 1991

Small Ruminant Research

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Changes in endogenous urea recycling and the handling of renal urea in pregnant and lactating Sardi sheep kept on a constant feeding level

Cited by 7 publications

References 9 publications

Effects of adding food by‐products mainly including noodle waste to total mixed ration silage on fermentation quality, feed intake, digestibility, nitrogen utilization and ruminal fermentation in wethers

Effects of adding food by‐products mainly including noodle waste to total mixed ration silage on fermentation quality, feed intake, digestibility, nitrogen utilization and ruminal fermentation in wethers

Pharmacokinetics, bioavailability and dosage regimen of sulphadiazine (SDZ) in camels (Camelus dromedarius)

Utilization of wheat stubble pastures by gestating ewes

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