MONTHLY COMPARISON OF MILK UREA CONCENTRATION IN GOATS AND EWES

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RAMIN A.GH.; RAZAVI ROUHANI M.; BOUDAGI K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: SCIENTIFIC-RESEARCH IRANIAN VETERINARY JOURNAL Year:2008 | Volume:4 | Issue:2 (19) Page(s): 102-107

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Information Journal Paper

Title

MONTHLY COMPARISON OF MILK UREA CONCENTRATION IN GOATS AND EWES

Author(s)

RAMIN A.GH. | RAZAVI ROUHANI M. | BOUDAGI K. | Issue Writer Certificate

Keywords

GOATQ3

EWESQ2

MILKQ2

UREAQ2

MONTHLYQ3

Abstract

Monthly comparison of MILK UREA concentration and their interrelationships were studied in 220 GOATs and 136 EWES in 2005-6 in Urmia. The amount of 50 ml MILK was prepared MONTHLY up to 5 months. MILK UREA concentration was evaluated by Bertholet method using UREA kit (Ziest-Chinii, Iran) in spectrophotometer. Mean for GOAT's MILK UREA concentration (GMU) from one to 5 months and overall were 35.2, 30.9, 19.7,27, 35.1, 28.6 and for EWES MILK UREA (EMU) were 21.7, 41.9, 41.2, 36.9, 50.2, 36.7 mg/dl, respectively. GMU concentration decreased irregularly while EMU increased regularly during the lactation. The range for the whole period of lactation for GMU and EMU were from 7.74 to 72.7 and 11.9 to 89.1 mg/dl, respectively. Mean comparison of the GMU and EMU showed differences (P<0.0l) among lactation months. Mean GMU at 3 months and EME at first month were different from other months of lactation. There was no correlation among lactation months in GMU and EMU, but correlation was found between GMU at 2 and 4 months of lactation (r=0.40, P<0.01) It is concluded that MILK UREA concentrations in GOATs and EWES were different during the lactation months but they were at the recommended level in bibliography. The presence of differences between GMU and EMU during the lactating months was the reflection of the metabolism and physiological procedures, but the differences were statistical and not biological values. UREA was confirmed in MILK GOATs and EWES and the concentration in ewe’s MILK was greater than in GOAT’s MILK that requires further study in relation to economic and hygiene importance. The lack of correlations between parameters under study shows their non-independent characteristic in source of their production.

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