1. fisik,
2. kimia,
3. biologis,
4. merubah bentuk dan ukuran serta
5. penambahan zat tertentu untuk meningkatkan kandungan nutrisi pakan.
Eksperimen pakan.
evaluasi pakan dilakukan berdasarkan 1. digestion 2. metabolism 3. economic factor dan dilakukan pada hewan.
Indikator yang digunakan dalam eksperimen pakan (dilakukan pada hewan) diantaranya
1. Palatability
2. Konsumsi pakan
3. Produksi (berat badan, produksi telur, ect)
4. Digestibility
5. Feed convertion
6. Economis factor
Metode Eksperimen Pakan berdasarkan
1. Tipe Pakan
2. Rasio Formula - percobaan pakan
- Membandingkan 2 rasio formula pakan
3. Persentase pakan 5% 10% 15%
Condition to make ration experiment :
1.Determine the ration’s feedstuff
2.Analyze the nutrition value
3.Make formula as needed
4.Mix homogenously
5.DM value – nearby
(resemble)
FEED
EXPERIMENTS
1.Lab. Animal as a model :
-
Practical and Cheap
-
Shorter time
-
Easier controlling individual variation
2. Direct to certain animals
PURIFIED DIET
Feed experiment to Laboratory Animals to know the nutrition effects :
•Protein ----------- Casein
•CH --------------- Dextrose
•Starch ----------- Sucrose
•Vitamin ---------- Crystal
Compound
•Fat --------------- Plant oil / Lard
•Mineral ---------- Chemical salt
Factors
which must be paid attention to :
•Feeding strategy : individually
or in group
•Feedstuff / ration effects
•Animals must be almost same
•Proximate analysis : feces – CP
digest – kept in freezer
•ad libitum feeding or limited (controlled)
•Adaptation period : 1 –2 weeks
•First feeding – step by step
•Daily Weight Gain – weighting –
before consuming feed/drink or defecation
•Carcass – before slaughtering –
fasted
•Egg & milk Production – have
to be known : peak & down production phase
•Proximate Analysis – DM must
stable (exp. Field grass – 65oC)
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