Renal functions and urea handling in pregnant and lactating Corriedale ewes
نویسندگان
چکیده
منابع مشابه
Changes in endogenous urea recycling and the handling of renal urea in pregnant and lactating Sardi sheep kept on a constant feeding level.
The kinetics of endogenous urea were compared during the last month of pregnancy, lactation, and a nonpregnant, nonlactating control period in Sardi sheep kept on a constant feed level. Urea entry rate estimated by injections of [14C]urea rose by 36% during pregnancy. Renal urea excretion was reduced by 40% during pregnancy and by 28% during lactation. Consequently, fractional urea recycling wa...
متن کاملGlucose production and utilization in non-pregnant, pregnant and lactating ewes.
By using continuous infusions of 3H- and 14C-labelled substrates, three-pool models, incorporating rumen propionate, plasma glucose and blood carbon dioxide were constructed to determine the contribution of propionate to glucose in non-pregnant, pregnant (mid and late) and lactating hill ewes. Although the intakes of non-pregnant and pregnant ewes were the same (1200 g dried grass/d) and result...
متن کاملeffect of bataine and sulphate supplement on wool and milk characteristics and lambs performance in naine ewes
تعداد 20 رأس میش نژاد نائینی 6+-24 ماهه، با میانگین وزن 2/3-+40 کیلوگرم، همراه با 20 رأس بره های آنها در قالب طرح کاملا تصادفی اثر بتائین و مکمل سولفات بر خصوصیات شیر و پشم و عملکرد بره ها بررسی شد. میش ها بطور تصادفی در چهار تیمار قرار گرفتند. تیمارها عبارت بودند از: 1-گروه شاهد 2-بتائین (05/0 درصد ماده خشک) 3-سولفات (24/0 سولفور درصد ماده خشک 4-بتائین هرماه با سولفات. جیره غذائی طبق nrc با مح...
15 صفحه اولRenal handling of urea in Ram catesbeiana
LONG, WILLIAM SCOTT. Renal handing of urea in Rana catesbeiana. Am. J. Physiol. 224(Z) : 482-490. 1973.-The processes involved in renal urea excretion in the bullfrog (Rana catesbeiana) were studied by clearance, tissue, and micropuncture methods. According to micropuncture data with urea-14C and inulin-3H, secretion of urea against a concentration gradient from plasma to tubular fluid occurs a...
متن کاملRenal handling of urea in Rana catesbeiana.
LONG, WILLIAM SCOTT. Renal handing of urea in Rana catesbeiana. Am. J. Physiol. 224(Z) : 482-490. 1973.-The processes involved in renal urea excretion in the bullfrog (Rana catesbeiana) were studied by clearance, tissue, and micropuncture methods. According to micropuncture data with urea-14C and inulin-3H, secretion of urea against a concentration gradient from plasma to tubular fluid occurs a...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1996
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas96-070