دراسة العلاقة بين الحالة الصحية للضرع ومواصفات الحليب في أغنام العواس تحت ظروف محافظة دير الزور

الموضوعات

زراعة

روابط وملفات

التعريف والنوع

رقم الوثيقة

fb3c0c3d-d014-4e77-ac04-c5009bce7e8c

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1967229_1.pdf

بيانات النشر

ترجمة العنوان

Study of the relation between the udder hygiene case and milk characteristics in Awassi sheep under conditions of dier ezzor region

ألقاب المؤلفين

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اللغة

Arabic

المصدر والدورية

اسم المصدر

دراسة العلاقة بين الحالة الصحية للضرع ومواصفات الحليب في أغنام العواس تحت ظروف محافظة دير الزور

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

this work was conducted on / 93/ ewes of Awassi race that are reared in the cattle of Alchola center that belongs to general corporation of scientific agricultural research in dier -ezzor , to study specifications of udder shape and its health indicators in relation to production and chemical composition of milk .The ewes were divided into four groups according to the birth season and subjected to a program of oversexed time using hormonal progesterone sponges and the measurements of udder ( such as length , width , depth , nipple length , nipple diameter and height of the udder from the ground surface ) were taken . also , the quantities of morning and evening milk were measured from lactation control every / 15 / days electrical conductivity of milk was measured in each ewe and considered as an average of morning and evening lactation in each half of the udder , and the proportions of hard components in the milk ( fat , protein , and lactose ) were estimated as well . then milk samples were taken to estimate concentration of chloride charges and somatic cell count . to confirm the attack by the udder mastitis or not , thinned milk samples were incubated with a culture of Staphylococcus. Results showed that 84 % of the tested ewes have analogue udder and 16 % of them have non-analogue udder and the differences between them were significant in respect of the somatic cell count , the electrical conductivity and the concentration of chloride in the milk , and the rate of udder mastitis attack as well . it was noticed that values of the electrical conductivity increased with the season , whereas these values were at their maximum limits within the season at the start and the end of lactation season with 8significant differences . no significant differences in the somatic cell count ,the electrical conductivity and the concentration of chloride in relation to the udder specifications , in respect of length , width , depth , and diameter of the nipple were observed . while height of the udder from the ground surface had highly significant effect in the logarithm somatic cell count in the milk , and the electrical conductivity and the concentration of chloride . Negative correlation between the quantity of milk and its content of fat , protein , and lactose one side and udder health indicators ( the electrical conductivity , number of germ cells , the concentration of chloride and the results of bacteria culture ) on the other

كلمات الباحثين

Awassi sheep, milk, udder health indicators, أغنام عواس, حليب, دلائل صحة الضرع

إشراف وإعداد

الإشراف

عبد الرحمن الحمود , علي العلي

الإعداد

شذى العيسى

الاقتباسات الببليوغرافية