تأثير معاملة الشعير بالفورمالديهايد لعلائق النعاج العواسية في إنتاج الحليب و بعض الصفات الكيميائية و الميكروبية في اللبن

الملخص EN

This study was conducted in research department of animal resource/ Al-Rashidiya, at ministry of agriculture by using 14 of genetically improved awassi ewes, average body weight 56.00 ± 2.10 kg and age ranged between 3-5 years.

Ewes were allocated according to their weight and milk production into two groups.

The first was control (T1), fed on ration consist mainly of untreated barley and contain 9.69 % of degradable protein and 3.77 % of undegradable protein as dry matter.

The second group (T2) was fed on same control ration but barley grain were treated with formaldehyde and contain 9.63 % degradable protein and 6.37 % of undegradable protein as dry matter, the two rations are nearest in its content of metabolizable energy.

Results are indicated to a significant increase (p > 0.05) in milk production in T2 which were 1.322 kg/day as compared to T1 which were 1.128 kg/day, milk components did not differ significantly between the two groups, but the quantity of lactose, fat and protein increased significantly (p > 0.05) in T2 as compared to T1.

No significant differences were noted in yogurt composition, but the total number of bacteria and colonic bacteria decreased in T2 (52.10 x 103and 4.16 x 101) compared to T1 (55.66 x 103 and 5.33 x 101) respectively.