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Determination the curve of milk secretion for goat milking using a new technique

تحديد منحنى جريان الحليب في أثناء حلابة الماعز باستخدام تقانة حديثة

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 Publication date 2005
and research's language is العربية
 Created by Shamra Editor




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This study was carried out using white German goat race during 2000-2001 at the Research Center of Animal Production Division, Humboldt University, Berlin, in order to examine the validity of the Lactocorder instrument, which has been used for determination of milking curve of cows, to determine the milking curve of goat, and to study the timing changes of this curve.


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Research summary
تم إجراء هذه الدراسة باستخدام سلالة الماعز الألمانية البيضاء خلال عامي 2000-2001 في مركز أبحاث قسم إنتاج الحيوانات بجامعة هومبولت في برلين، بهدف اختبار صلاحية جهاز Lactocorder، الذي يُستخدم لتحديد منحنى الحلب للأبقار، لتحديد منحنى الحلب للماعز ودراسة التغيرات الزمنية لهذا المنحنى. تم إجراء التجربة على 15 ماعز، وتم القياس لمدة ستة أيام في الشهر لكل موسم حلب، بينما تم إجراء القياسات للتغيرات الزمنية مرتين في اليوم، في الصباح والمساء. تم تقدير كمية الحليب المنتجة عن طريق الوزن وكذلك باستخدام جهاز Lactocorder. تم استخدام نظام حلب بواقع 20 موقع حلب وفقًا لمحطة أبحاث بلومبرغ. تم تثبيت رؤوس الماعز لمنع حركتها أثناء الحلب وتم تزويدها بالعلف المركز لتهدئتها. أظهرت النتائج وجود فروق ذات دلالة إحصائية بين طرق الوزن وLactocorder. في الختام، يمكن استخدام هذا الجهاز بشكل موثوق لتحديد إفراز الحليب في الماعز ودراسة التغيرات الزمنية للحصول على فكرة عن الحالة الصحية للماعز من خلال انحراف منحنى كل حيوان عن المنحنى الطبيعي. توصي الدراسة بإجراء المزيد من الأبحاث في هذا المجال لتحديد تأثير التحفيز على منحنى إفراز الحليب في الماعز وتأثيره على حالة الضرع الصحية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة في مجال أبحاث إنتاج الحليب من الماعز، حيث تقدم طريقة جديدة لتحديد منحنى الحلب باستخدام جهاز Lactocorder. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن توسيع حجم العينة لتشمل عددًا أكبر من الماعز لضمان نتائج أكثر دقة وموثوقية. ثانيًا، لم يتم التطرق بشكل كافٍ إلى تأثير العوامل البيئية والغذائية على نتائج الدراسة، وهو ما يمكن أن يكون له تأثير كبير على إنتاج الحليب. أخيرًا، كان من الممكن تقديم تحليل أكثر تفصيلاً للفروق بين طرق الوزن وLactocorder لتوضيح الأسباب المحتملة لهذه الفروق.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي من الدراسة هو اختبار صلاحية جهاز Lactocorder لتحديد منحنى الحلب للماعز ودراسة التغيرات الزمنية لهذا المنحنى.

  2. كم عدد الماعز التي تم استخدامها في التجربة؟

    تم استخدام 15 ماعز في التجربة.

  3. ما هي الطرق المستخدمة لتقدير كمية الحليب المنتجة؟

    تم تقدير كمية الحليب المنتجة عن طريق الوزن وكذلك باستخدام جهاز Lactocorder.

  4. ما هي التوصيات التي قدمتها الدراسة لمزيد من الأبحاث؟

    توصي الدراسة بإجراء المزيد من الأبحاث لتحديد تأثير التحفيز على منحنى إفراز الحليب في الماعز وتأثيره على حالة الضرع الصحية.


References used
Brem G. (1998). Exterieurbeurteilung landwirtschaftlicher Nutztiere, Ulmer, Stuttgart
Bruckmaier R. M., C. Ritter, D. Schams, J. Blum. (1994). Machine milking of dairy goast during lactation: udder anatomy, milking characteristics, and blood concentrations of oxytocin an prolactin, journal of Dairy Research 61 (1994), p. 457-466
Bruckmaier R. M., J. W. Blum. (1998). Oxytocin Release and Milk Removal in Ruminants, Journal of Dairy Sci 81:939-949
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