Factors affecting milk composition of Algerian ewe reared in central steppe area
Journal Title: Scientific Journal of Animal Science - Year 2013, Vol 2, Issue 8
Abstract
The aim of this studywas to assess changes in composition of individual raw ewe’s milk reared inAlgerian area steppe. In total 167 milk samples from two local breeds, OuledDjellal (75 samples) and Rumbi (92) were taken. For each ewe, we recorded thenumber of lactation (primiparous vs. multiparous), lactation stage (beginning,middle or end) and age. Milk samples were taken twice time from lactatingperiod during winter and spring season. Rumbi ewe milk exhibited the highest(p≤0.001) protein, lactose, solid-non-fat and density than Ouled-Djellal ewemilk. Conversely, Ouled-Djellal manifested significantly higher (p≤0.001) fatconcentration and freezing point in milk than the Rumbi. The pH value was notsignificantly affected by breed. The stage of lactation had significant effecton fat contents (p≤0.05) and freezing point (p≤0.01) while, other parametersstudied were not significantly influenced by lactation stage. The season had asignificant effect on all parameters tested except total solids. Lactose andfreezing point were not significantly affected by the age of ewe. On thecontrary there was an important effect of age for other parameters. Regardingthe lactation number, no significant effects were found.
Authors and Affiliations
B. Yabrir*| Laboratory of Exploration and Valorization of Steppic Ecosystems, University of Djelfa, Algeria., A. Hakem (Ex Akam)| Laboratory of Exploration and Valorization of Steppic Ecosystems, University of Djelfa, Algeria., A. Mati| Laboratory of Analytical Biochemistry and Biotechnology, University M. Mammeri of Tizi-Ouzou , Algeria.
Keywords
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- EP ID EP650
- DOI 10.14196/sjas.v2i8.901
- Views 428
- Downloads 22
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