Impact of Lactation Stage on the Body Condition and Milk Quality of Black Goat

Abstract

A total of nineteen black does were used in this study to investigate the impact of lactation stage on bodycondition, blood metabolism and milk composition. Body condition was assessed together with blood andmilk samples, which were collected at week 6 (early), 14 (mid) and 22 (late) of lactation. Body conditionscore of each doe was also assessed. The overall mean of body condition score was 2.35±0.08 and serumtotal protein, glucose, triglyceride averaged, respectively 5.80±0.10 g/dl, 120.87±5.34 mg/dl, 51.04±5.38mg/dl, and milk fat, protein, lactose, solid non fat and total solid percentages averaged 3.24±0.15,4.49±0.10, 4.44±0.01, 9.71±0.11, and 12.95±0.20, respectively. Body condition at kidding decreasedsignificantly at week 4 and then increased significantly (p<0.05) during mid and late part of lactation.Lactation stage also significantly affected (p<0.05) all milk constituents, and glucose.