| Titles |
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English :
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Comparing the local, imported Dl-Methionine hydroxy analogue- calcium and Dl-Methionine for El-Salam local laying hens
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Arabic :
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مقارنة د.ل مثيونين هيدروكسى انا لوج المحتوى على الكالسيوم المنتج محليا و المستورد و د.ل مثيونين باستخدام الدجاج البياض المحلى من سلالة السلام
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| Abstract |
The present study was conducted to compare the biological efficiency of local and imported DL-Methionine hydroxy analogue - calcium (LMHA), imported DL- Methionine hydroxy analogue - calcium (IMHA) and DL-methionine (DLM) in corn- soya diet for local strain layers as a source of methionine.
Two hundred hens (22 weeks old) of developed local strain "EL Salam" were fed on ten experimental diets for 16 weeks. Each of the three methionine sources DLM, LMHA and IMHA were added to a basal corn-soya diet, deficient in m6tl'tionine (0.25%), on equimolar basis at levels of 0.04, 0.06 and 0.08 % . At the end of each 4 weeks interval the productive performance and egg quality parameters were measured.
Results obtained can be summarized 8S follows:
The best egg production was obtained at 0.33 % total methionine with 0.08% equivalent added from DLM, LMHA or IMHA.
There were a significant increase in shell thickness for all methionine treatments as compared with the basal diet.
DL-methionine was significantly better than LMHA and IMHA on equimolar basis in the egg production parameters.
The relative efficiency of LMHA as compared to DLM was 92.42, 98.57,91.08 and 86.87% in the term of EN, EW, EM and FC, respectively. Whereas, IMHA is 96.44,99.35,95.77 and 93.52%, respectively.
According to the linear regression model (Y = A+CX), the efficiency of LMHA was found to be 55.36, 56.50, 54.65 and 49.65 % for EN, EW, EM and FG, respectively, while, the efficiency of IMHA (C3/C1) was 79.71,71.33,77.37 and 76.24 %, respectively.
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| Publication year |
2002
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| Pages |
865-879
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Egyptian Journal Agricultural Research
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Calcium.
Egg production.
Layer chickens.
Methionine.
Performance testing.
Shell.
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| Publication Type |
Journal
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