| dc.contributor.advisor | Nahrowi | |
| dc.contributor.advisor | Sumiati | |
| dc.contributor.author | Rushafarani, Yurida Wahyu | |
| dc.date.accessioned | 2024-07-19T11:40:34Z | |
| dc.date.available | 2024-07-19T11:40:34Z | |
| dc.date.issued | 2023 | |
| dc.identifier.uri | http://repository.ipb.ac.id/handle/123456789/154377 | |
| dc.description.abstract | Kalsium karbonat, dalam bentuk batu kapur, menjadi sumber kalsium yang paling sering digunakan dalam pakan unggas, sekitar 80% larut dan dapat diserap dalam media asam saluran pencernaan. Kecernaan kalsium dapat bervariasi sesuai dengan ukuran partikel batu kapur. Konsentrasi batu kapur dalam pakan ayam petelur lebih tinggi dari pada ayam broiler, yang dapat menghambat kecernaan biji batu kapur dibandingkan dengan tepung batu kapur. Penentuan kecernaan kalsium mendapat sedikit perhatian, terutama karena biayanya yang rendah dan ketersediaan yang melimpah. Penelitian ini bertujuan untuk mengetahui pengaruh koefisien kecernaan total kalsium dan fosfor dari batu kapur sebagai sumber kalsium dan pengaruh enzim fitase untuk ayam petelur. Penelitian ini menggunakan 180 ekor ayam petelur Hy-line Brown umur 74 minggu. Rancangan percobaan yang digunakan yaitu rancangan acak lengkap (RAL) faktorial 2x2 dan 9 ulangan. Faktor pertama (ukuran partikel batu kapur) adalah P1 = Tepung batu kapur dan P2 = Biji batu kapur dan faktor kedua (dosis enzim fitase) adalah Q1 = 0 FTU dan Q2 = 1000 FTU. Peubah yang diamati adalah, pH gizzard, kadar air ekskreta, kadar air digesta, kecernaan kalsium dan fosfor menggunakan dua jenis sampel, ekskreta dan digesta ileal. Hasil penelitian ini menunjukkan kecernaan kalsium dari tepung batu kapur berbeda nyata dibandingkan dengan biji batu kapur pada(p<0,05). Penambahan enzim fitase dan interaksi dengan ukuran partikel batu kapur yang berbeda tidak mempengaruhi pH gizzard, kecernaan total, kecernaan ileal dari kalsium dan fosfor. Kadar air ekskreta dan digesta berpengaruh signifikan terhadap ukuran partikel batu kapur, kadar air tertinggi adalah biji batu kapur dibandingkan dengan tepung batu kapur (p<0,01). Penambahan enzim fitase berpengaruh terhadap penurunan kadar air ekskreta (p<0,01). Enzim fitase dapat menurunkan kadar air ekskreta dan digesta. Dalam parameter produksi, produksi telur, konsumsi pakan, konversi ransum pakan, mortalitas tidak berpengaruh pada perbedaan ukuran partikel batu kapur dan penambahan enzim fitase untuk ayam petelur. Penambahan enzim fitase mempengaruhi berat telur (p<0,05). Persentase cangkang, berat cangkang, ketebalan, dan kekuatan telur cangkang tidak berpengaruh pada ukuran partikel batu kapur dan penambahan fitase. Penambahan enzim fitase mempengaruhi nilai haugh unit dan skor porositas telur (p<0,05). Ukuran partikel dan enzim fitase tidak mempengaruhi kandungan kalsium, fosfor, abu dan berat tibia pada penelitian ini. Simpulan hasil penelitian yaitu ayam petelur lebih efisien dalam mencerna kalsium dari tepung batu kapur, dibandingkan dengan biji batu kapur. Enzim fitase 1000 FTU dapat mempengaruhi berat telur dan kualitas telur (nilai haugh unit dan skoring porositas telur). | |
| dc.description.abstract | Calcium carbonate, in the form of limestone, being the most frequently used source of calcium in poultry feed, is about 80% soluble and can be absorbed in the acidic medium of the gastrointestinal tract. The digestibility of calcium can vary according to the size of the limestone particles. The concentration of limestone in the feed of laying hens is higher than in broiler chickens, which can inhibit the digestibility of limestone seeds compared to limestone flour. The determination of calcium digestibility receives little attention, mainly due to its low cost and abundant avail ability. This study aims to determine the effect of the coefficient of digestibility of total calcium and phosphorus from limestone as a source of calcium and the effect of phytase enzymes for laying hens. This study used 180 Hy-line Brown laying hens aged 75 weeks. The experimental design used was a 2x2 factorial complete randomized design (RAL) and 9 repeats. The first factor (limestone particle size) is P1 = Limestone flour and P2 = Limestone seeds and the second factor (phytase enzyme dose) is Q1 = 0 FTU and Q2 = 1000 FTU. The observed variables were, gizzard pH, excreta moisture content, digest water content, calcium and phosphorus digestibility using two types of samples, excreta and ileal digesta. The results of this study showed that the digestibility of calcium from limestone flour was significantly different compared to limestone seeds at (p<0.05). The addition of phytase enzymes and interaction with limestone particle size do not affect the gizzard pH, total digestibility, ileal of calcium and phosphorus. The water content of excreta and digesta has a significant effect on the particle size of limestone, the highest water content is limestone seeds compared to limestone flour (p <0.01). The addition of phytase enzyme has an effect on reducing excreta water content (p<0.01). There is no interaction between limestone size and phytase on excreta and digesta moisture content. In the parameters of production, egg production, feed consumption, feed ration conversion, mortality have no effect on differences in limestone particle size and the addition of phytase enzymes for laying hens. The addition of phytase enzyme affects egg weight (p<0.05). The percentage of shell, shell weight, thickness, haugh unit and strength of shell eggs have no effect on limestone particle size and phytase addition. The addition of phytase enzyme affects the haugh unit dan candling eggs score (p<0.05). Particle size and phytase enzymes did not affect the calcium, phosphorus, ash content and tibia weight in this study. The conclusion of the study results is that laying hens are more efficient in digesting calcium from limestone flour, compared to limestone seeds. The phytase enzyme 1000 FTU can affect egg weight and egg quality (haugh unit value and egg candling scoring). | |
| dc.description.sponsorship | | |
| dc.language.iso | id | |
| dc.publisher | IPB University | id |
| dc.title | Evaluasi Pemberian Batu Kapur Berbeda Ukuran dan Enzim Fitase terhadap Kecernaan Kalsium dan Fosfor Ayam Petelur Hy-Line Brown | id |
| dc.title.alternative | Evaluation of Digestibility Calsium and Phospor on Laying Hen | |
| dc.type | Tesis | |
| dc.subject.keyword | digestibility | id |
| dc.subject.keyword | phytase | id |
| dc.subject.keyword | calcium | id |
| dc.subject.keyword | particle size | id |