Crushed Oyster Shells untuk Ayam: Panduan Kalsium & Grit

Kesalahan paling fatal dalam merawat ayam petelur adalah menganggap pecahan cangkang tiram yang lunak berfungsi ganda sebagai grit batu keras untuk menggiling biji-bijian di dalam gizzard.

Two recently laid chicken egg inside a coop in the village of Trimingham , Norfolk, England.
Photo: Kolforn ( Kolforn ) / CC BY-SA 4.0, via Wikimedia Commons

Cangkang telur ayam berfungsi sebagai kalsium lepas-cepat, sedangkan cangkang tiram (oyster shell) adalah kalsium larut. Suplemen ini memenuhi kebutuhan kerabang telur yang masif setiap hari, bukan untuk melumat pakan di dalam organ pencernaan. Salah seorang pemelihara di r/BackYardChickens menulis, "They don't need DE, don't need oyster shell until they start laying." Petani lain juga menegaskan perlunya kejelasan pengaturan gizi dengan berkata, "They are being fed producers pride 16% layer feed as well as supplemental oyster shells."

Membedakan oyster shell dan grit batu keras

Ayam Anda tidak memiliki gigi, sehingga mereka mutlak membutuhkan bantuan mekanis untuk menggiling pakan keras di dalam gizzard. Namun, bahan untuk tugas ini tidak boleh sembarangan. Anda harus membedakan secara tegas bahwa oyster shell bukanlah grit, karena strukturnya terlalu lunak untuk meremukkan biji-bijian utuh. Seperti yang dicatat dalam r/BackYardChickens, "Another common mistake isn't giving them grit and ground oyster shells to eat." Anda memerlukan grit batu granit atau flint tak larut yang tajam untuk menggiling makanan, sementara kalsium tiram akan larut oleh asam lambung sebelum sempat menjalankan fungsi giling tersebut.

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Aturan praktis penyediaan wadah terpisah

Anda wajib menyajikan suplemen kalsium ini secara bebas atau free-choice di wadah terpisah. Jangan pernah mencampur oyster shell ke dalam pakan utama jika flok Anda adalah flok campuran yang berisi rooster, pullet muda, atau ayam jantan, karena kelebihan kalsium ini dapat merusak ginjal mereka secara permanen. Penggunaan wadah yang tepat sangat membantu manajemen harian Anda; miliki wadah pakan gantung terpisah untuk suplemen untuk memastikan hanya ayam petelur dewasa yang dapat mengaksesnya sendiri saat tubuh mereka membutuhkannya. Seperti saran dari forum, "Make sure you provide plenty of oyster shell for calcium and grit for your ladies alongside with a balanced feed and you'd do great."

Apakah suplemen cangkang tiram wajib hukumnya?

Nuansa penting yang sering dilewatkan pemula adalah apakah suplemen ini benar-benar wajib di setiap pekarangan. Berdasarkan panduan ACES, pakan layer lengkap berkualitas yang sudah diformulasikan dengan benar bisa membuat suplemen ini menjadi opsional karena kandungan kalsiumnya sudah mencukupi kebutuhan harian. Meskipun demikian, harganya yang murah tetap menjadikannya asuransi terbaik untuk hen dengan produksi telur yang sangat tinggi. Anda bisa mempelajari lebih lanjut tentang takaran dan manajemen nutrisi ini lewat panduan lengkap pengaturan pakan ayam petelur agar flok Anda terhindar dari masalah pencernaan maupun gangguan pembentukan kerabang telur.

By Sam Harlow

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