| Titles |
|
English :
|
Response of Nile tilapia (Oreochromis niloticus) fingerlings to Canola meal and phytase enzyme containing diets
|
|
Arabic :
|
استجابة اصبعيات البلطى النيلى ( Oreochromis niloticus) للعلائق المحتوية كسب الكانولا و انزيم الفيتيز
|
|
| Abstract |
A total number of 126 Nile Tilapia fingerlings of mono sex averaging 15.17±0.18 g (mean± SE) in wet body weight were allotted in to 6 dietary treatments. Such treatments were the combination of three levels of canola meal (CM) and two levels of Phytase enzyme (Ph). Canola meal levels were 0, 22 and 44% of the diet where it replaced 0, 50 and 100 of soybean meal protein. Phytase enzyme was added at 0 and 0.1% of the diet accordingly the dietary treatments were the control, control + Ph, 22% CM, 22% CM + Ph, 44% CM and 44% CM + Ph diets. All diets were formulated to be iso-nitrogenous (30.1± 0.2% CP) and iso-caloric (4339± 74 Kcal/kg diet). The trial was conducted in aquaria in 3 replicates/each treatment (7 fingerlings/ aquarium) and terminated after 90 days experimental period. Fish were fed the tested diets at a rate of 3% of their wet body weight / day, in three equal portions, 6 days a week. Provided feed was adjusted bi-weekly according to the changes in body weight. Representative samples of fish were taken for whole body chemical composition at the start and at the termination of the study Canola meal chemical composition and diets ingredients and its chemical composition. were performed. Data collected included growth performance parameters, feed intake, feed utilization and body chemical composition along with simple economic evaluation was conducted. Results revealed that canola meal has good protein quality comparable to soybean meal protein either without or with phytase. In addition, canola meal can replace up to 50 % of SBM protein with phytase supplementation in practical diets of Nile tilapia without any adverse effects on growth performance, feed utilization and whole body composition of fish. Also canola meals (as its protein is generally less expensive than soybean meal protein) and phytase enzyme can reduce feed cost and feed cost/kg gain under the experimental conditions it seems that the diet contained 22% canola meal + 0.1 % phytase enzyme was the most promising diet.
Keywords: canola meal, phytase, Tilapia, performance, feed utilization, body chemical composition, economic evaluation.
|
| Publication year |
2009
|
| Pages |
519-529
|
| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد - الدقى- الجيزة
|
| Availability number |
|
| Organization Name |
Animal Production Research Institute (APRI)
|
| serial title |
Egyptian Journal Nutrition and Feeds
|
| ISSN |
1110-6360
|
| Author(s) from ARC |
|
| External authors (outside ARC) |
محمد محمد السعيد حسونة
جامعة الفيوم
|
| Agris Categories |
Animal feeding
|
AGROVOC
TERMS |
Economic analysis.
Feed conversion efficiency.
Fingerlings.
Oreochromis niloticus.
Performance testing.
Phytase.
Tilapia.
|
| Proposed Agrovoc |
canola meal;body chemical composition;
|
| Publication Type |
Journal
|