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رد: لون الحجل وتحديد الجنس للطائر
اخوي انا قاري معلومه بالمنتدى والله ما اذكر اسم العضو لكن العضو خبره بالببغاوات
يقول ان الحجل الذهبي للذكر والحجل الفضي للانثى وانا الحين قاعد اتبع اللي يقووله ف أبي اتأكد هل صحيح ام خطأ الاعضاء مو متفقين على رأي واحد |
رد: لون الحجل وتحديد الجنس للطائر
اقتباس:
ولكن كيف جزمت بالكلام اكيد 100% الدليل لو تكرمت احب افيدك اننا هنا اكثر من 2 ومختلفين ونخالف كلامك بنفس الوقت ثانيا مافيه شي اسمه فحص ليزر يمكن تقصد المنظار؟؟ وهذا مايعمل الا للطيور الكبيره للكشف على الاجهزه التناسلية علما ان خطورتة كبيره على الطير ولايستخدم كثيرا اكرر كلامي الله يرحم والديكم مانبي أرائكم الشخصية نبي دليل موثق او مرجع علمي مع احترامي للجميع |
رد: لون الحجل وتحديد الجنس للطائر
اقتباس:
ليس المهم ان نتفق او نختلف الكلام بدون دليل يعتبر رأي شخصي لايعتد به لذا اكرر المطالبة بالدليل لقطع الشك باليقن |
رد: لون الحجل وتحديد الجنس للطائر
النظام الأمريكي:
يوضع الحجل في الرجل اليمنى للذكور و اليسرى للأناث وها مذكور في موقع أحد المستشفيات الأمريكية ***ing bands are put on the right leg to indicate males and left leg to indicate females. http://www.vcahospitals.com/main/pet...tification/882 |
رد: لون الحجل وتحديد الجنس للطائر
اقتباس:
purpose. The scheme makes verification difficult for investigating authorities, because there are no standard requirements for the rings and there is no central, digital database to access in order to quickly verify a ring. في المرفقات بحث عن موضوع الحجول في هولندا ولكن لا يمكن رفع الملف لكبر حجمه أبحث في جوجل Bred in a trap +Arnold van Kreveld |
رد: لون الحجل وتحديد الجنس للطائر
هذا هو المقطع المفيد في البحث
The ringing system In 2004, the AID investigated whether or not the number of leg rings applied for by various avicultural societies corresponded with the actual number of birds kept or bred by bird keepers (AID annual report 2004). This AID-investigation concluded that there were more applications for leg rings than there were birds being bred. It is easy to obtain leg rings by applying to avicultural societies – this does not require membership. During investigations for this report, a case came to light of a bird keeper who allegedly kept only a few birds but who applied for 1000 leg rings. The ring commissioner decided this was too much, but instead of sizing up the situation himself, or informing the authorities, he decided to issue 350 instead of 1000 leg rings. The bird keeper subsequently obtained two additional sets of 350 leg rings by means of friends at other societies. The issuing, supervision and administration of rings is in the hands of avicultural societies. There is no independent supervision of the system nor is there any prospect of this. The defective organization of the ringing system, combined with its supervision almost entirely by bird keepers, is bound to give rise to illegal trade. Avicultural societies also make money by selling leg rings, as Aviornis reports in its periodical (February 2006): “Remember that by ordering your rings at Aviornis, you support our organization and indirectly yourself! So order now, if you have not done so already!” This means that there is an undesirable conflict of interests, as strict supervision of the issuing of rings by a society could lead to a decrease in income for that society and a loss of membership. In addition, a decision to refuse rings to someone will, in most cases, have no effect, because inevitably another society will issue them. As described in Section 2.3 and below, adult birds are ringed as well as chicks, so the assumption on which the policy is based, namely that closed leg rings can only be fitted to the legs of young birds is false. Vogelbescherming Vlaanderen has made a detailed description (May 2003) of the methods of putting rings on wild-caught birds. Several Dutch experts in the tracking of illegal trade in European birds have, in the light of this investigation, stated that the situation in the Netherlands is not fundamentally different than the one in Belgium. The following techniques are discerned in the above-mentioned report: • Sawing through rings, putting them on and bending them back. Sometimes the ring is reworked with a soldering iron, super glue, or felt-tip pen to cover up the saw-cut. • Increasing the inner diameter of the ring by removing the material, for instance with a file, or by drilling. • Increasing the inner diameter of the ring without removing the material, for instance with a hammer and a nail, or a punch which is normally used for making additional holes in a belt. Sometimes the ring is squeezed shut with a pair of pliers afterwards. • Using leg rings that are too big. The ringing of wild birds with a closed ring is no gentle business. During confiscations and also at markets and exhibitions, birds with leg injuries are encountered on a regular basis. A lot of force is used to put a (more or less) tightly fitting ring on an adult bird. This regularly leads to accidents and even deaths during the ringing process. There are professional ringers active and more often than not they are not bird keepers. In Belgium, arrests have been made of dealers that were in the possession of thousands of rings (applied for and issued by avicultural societies) and many unringed birds. The following AID press release of 3 February 2006 shows a Dutch example: “The General Inspection Service (AID) of the Dutch Ministry of Agriculture, Nature and Food Quality has confiscated 61 protected species of native birds at a bird keeper in the province of Groningen. It was established that of the 76 birds that were present, 61 wore rings that had been tampered with. A major part of the birds were ringed with damaged rings or rings that were too big. It is therefore suspected that A broken leg as result of ringing an adult bird these birds have been wild-caught and provided with leg rings at a later moment to suggest captive breeding. It is only legal to put seamless closed rings on young captive-bred birds. These leg rings are provided by Dutch avicultural societies. A report has been made of this offence against Flora and Fauna Legislation.” Most confiscations concern song birds, but sources within the police and the cage-bird scene mention that there are also ducks,waders, raptors and owls being caught in the wild and subsequently ringed. Species mentioned include sparrowhawk and hobby. During this investigation no hard evidence was found to support the claim that raptors are ringed at the nest site, left there to be raised by the parent birds, and robbed just before they are about to leave the nest. TheWorking Group on Birds of Prey in the Netherlands checks thousands of nests a year and has never found ringed young. Young raptors are, however, robbed and raised by hand (see 2.3). | 15 http://img695.imageshack.us/img695/158/unled22c.jpg |
رد: لون الحجل وتحديد الجنس للطائر
اقتباس:
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رد: لون الحجل وتحديد الجنس للطائر
هذا موقع الجهة المسؤولة عن الطيور في هولندا
http://www.vogelbescherming.nl/ تم التواصل معهم بخصوص موضوع لون و تفاصيل الحجل وفي إنتظار الرد لمزيد من المعلومات يمكن كتابة التالي في جوجل bird leg-band system bird leg-ring system مع التحية |
رد: لون الحجل وتحديد الجنس للطائر
اقتباس:
مصدر الكلام من واحد عنده مزرعه و اكثر من محل للحيوان و انا سالته وهوه عميل عند المزارع الهولنديه و قالي هذا الكلام بخصوص الفحص هوه قالي صلب في ليز و يخشونه في فتحت الشرج اكرمكك الله وانا اعرف فحص المنضار لا هب هوه اقتباس:
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رد: لون الحجل وتحديد الجنس للطائر
اقتباس:
ولكن اخوي انت خلطت موضوعين مع بعض وليس لهم دخل في موضوعنا الاصلي الكلام الاول يتكلم عن الحجول المفتوحة التي تستخدم بعد تحليل جنس الطير من قبل المختبرات وهي مايستخدمه المربين للتفريق بين جنس طيورهم او في المحاجر الصحية للفحص او للابحاث من قبل الجمعيات العلمية (كلامنا عن الحجول الصك المختومه التي توضع للفروخ) الكلام الثاني (والله يسامحك خليتني اقرا 44 صفحه):64: الباحث يتكلم عن الصيد الغير شرعي التجارة الغير شرعية في اوربا طرق التحايل على نظام الحجول وغير ذلك من امور بعيده عن موضوعنا الاصلي ويذكر توصيات في اخر البحث عن مواصفات الحجول المطلوبة وعن ضرورة انشاء قاعدة بيانات هذا رابط الموضوع بالكامل ابو 44 صفحة :mad: http://www.stroming.nl/pdf/bred%20in%20a%20trap.pdf الزبدة كل الموضوعين يتكلمون عن شي ثاني غير موضوعنا محل النقاش مره اخرى شاكر اهتمامك اخي الكريم وتقبل تحياتي واحترامي |
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