A study effect of age of dam and sex of birth on chemical and physical composition of milk in some farm animals
2011
N. K. Taher | H. J. Hassan | B. J. Mohammad
This study was carried out at AL-Qadisiya Governorate/ AL-Shinafia district during a period from July- September 2010 to evaluate the effect of age of dam and sex of birth on physico-chemical composition of milk in some farm animals(cows ,sheep and goats). by using ultra-sonic milk Analyzer to analysis of physico-chemical composition of milk. A total of (153) samples of milk were used in this study distributed in to (54) samples for cows, (53) samples for sheep and (46) samples for goats. These samples were collected from animals directly and kept in ice box during transportation to the laboratory to analysis. Results of this study showed that milk of sheep and goats didn’t differ significantly as compared with cows milk in (PH, Density, Solid not fat).But differed significantly (P˂0.05) in other components. The study revealed that sheep milk contain the highest Ash(0.74%) while cow milk had lactose (4.25%) , but goat milk had the highest solid not fat (8.27%) and protein (3.37%). The study showed that there was no significant effect of sex of birth on physico-chemical composition of milk of cows, sheep and goats with exception the effect of it on lactose percentage in sheep. Age of dam didn’t effect on most physico-chemical composition of milk of cow and goat and some chemical composition of sheep milk (Ash and Fat).
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