Как выбрать гостиницу для кошек
14 декабря, 2021
In another experiment, different levels of protein from two kinds of artemia meal include artemia meal from Urmia lake and artemia meal from earth ponds beside Urmia lake with levels of 0, 25, 50, 75, 100 percent replaced to prue fish meal protein [12]. The experimental design was completely randomized with factorial method; include 10 treatments and 3 repetitions that in each repetition there were 10 one day-old male broilers from Ross 308 strain. This experiment was performed in 7 weeks and during and end of it, traits that related to broiler performance and carcass, was measured and analyzed. Results showed that effect of kind of artemia meal and effect of level of protein replacement weren’t significant for feed intake. But interaction between these two was significant for this trait (P<0.05). The highest feed intake belong to Urmia lake artemia meal treatment with 50% level of replacement and the lowest feed intake related to treatment of without artemia meal (contain 5% fish meal). For body weight gain and feed conversion ratio, effect of kind of artemia meal and effect of level of protein replacement and effect of interaction between these two weren’t significant. These effects weren’t significant for all carcass traits and gastro intestinal parts exception for femur percent that treatment of without artemia meal (contain 5% fish meal) had a lowest percent to comparison with other treatments for this trait.
Apparent digestibility True digestibility Amino acids ———————————————————————————————
NS — Non Significant ; 1- Standard Error of Mean ; 2 — Probability ; CP — Crude Protein ;N — Nitrogen 3 — The values (protein digestibility) were not corrected for uric acid. Table 2. Apparent and true digestibility (coefficients) of artemia meal determined by sampling either excreta or ileum contents |
Results of this studies revealed that artemia meal can be used as a feedstuff in poultry and other farm animal’s diets because it has high level of protein and high protein digestibility. Compared with other animal proteins, artemia does not contain any feather, bone, hair or gastrointestinal tract components. In addition, in artemia production there is no requirement for high pressure and high temperature treatments which can influence protein quality. Artificial culture of artemia is easy and is possible everywhere.
A. Zarei[5]
Department of Animal Science, College of Agriculture and Natural Resources, Islamic Azad
University — Karaj Branch, Karaj, Iran