Urinary excretion of purine derivatives as influenced by GFR and plasma retention of purines in cattle (Bos indicus × Bos taurus) and buffalo (Bubalus bubalis) bulls
Journal Title: Journal of Animal and Feed Sciences - Year 2013, Vol 22, Issue 2
Abstract
A study was undertaken to assess the influence of variation in the glomerular filtration rate (GFR) and plasma retention of purines on excretion of purine derivatives (PD) in crossbred cattle and buffalo bulls. Five male crossbred cattle (Bos indicus × Bos taurus) and Murrah buffalo bulls (Bubalus bubalis) about 2 years and 2 months of age (average body weights: 198.2 and 214.6 kg, respectively) were fed a maintenance ration containing wheat straw and concentrate. Experimental feeding of 40 days was followed by a metabolic trial of six days. The response parameters were compared by the independent ‘t’ test. The plasma allantoin, uric acid, and total PD concentrations were higher (p < 0.05) in cattle than in buffalo. Urinary allantoin and total PD excretion were higher in cattle (p < 0.05). Creatinine excretion however, was comparable (p > 0.05) between the two species. The GFR in both groups remained similar. The tubular loads of allantoin, uric acid, and total PD were numerically higher in cattle, whereas, the uric acid reabsorption percent was higher (p < 0.05) in buffaloes. The microbial nitrogen supply was higher (P < 0.01) in cattle. The purine nitrogen index remained similar in both species. The present study concludes that the lower urinary PD excretion rate of buffalo was due to their higher reabsorption of PD than cattle; however, the effect of species-specific GFR seems to confound the elucidation of the variation in their individual urinary PD excretion
Authors and Affiliations
K. Y. Deshpande, U. R. Mehra, P. Singh, S. L. Ingale, A. K. Verma, S. K. George
Keywords
Related Articles
- EP ID EP72955
- DOI -
- Views 137
- Downloads 0
The effects of dietary α-linolenic acid on growth performance, meat quality, fatty acid composition and liver relative enzyme mRNA expression of growing meat rabbits
The effects of five levels of added α-linolenic acid (ALA) (0, 1, 2, 3, and 4 g · kg–1 diet, as-fed basis) in diets on growth performance, meat quality, fatty acid composition of muscle and liver, and expression of acety...
Ferrous bisglycinate increased iron transportation through DMT1 and PepT1 in pig intestinal epithelial cells compared with ferrous sulphate
To study the different mechanisms of absorption of diverse iron sources, pig intestinal epithelial cells (IPEC) were incubated with various concentrations of ferrous sulphate and ferrous bisglycinate for different times...
The yield and cell viability of bovine in vivo recovered embryos in relation to season of flushing
The objective of this study was to evaluate effect of the season on the yield and viability of embryos recovered from superovulated and flushed Holstein cows (n = 56). The embryo recovery rate (ERR, %) was determined as...
The effect of different physical forms of rapeseed as a fat supplement on the activity of some enzymes in the duodenal chyme of dairy cows
Studies on nutritional regulation of digestive enzymes in ruminants are scarce. Fat supplementation of diets for dairy cows changes the supply of nutrients for absorption and transport. The aim of this experiment was to...
Predicting feeding value of forage maize hybrids harvested at different maturities and sites
The objective of this study was to evaluate two near-infrared reflectance spectroscopy (NIRS) applications and different laboratory methods for determining indigestible neutral detergent fibre (iNDF) and organic matter d...