THE STUDY OF THE ECONOMIC EFFICIENCY IN AMINO-ACIDS SUPPLEMENTATION OF THE LAYING HEN`S FODDER
The experiment has been carried out on 69 Tetra SL hens, 27-36 weeks old, distributed into 3 groups consisted of 23 hens. They were fed with fodder recipes with different protein levels (17, 16 and respectively 15%). These recipes have been supplemented with DL-methionine and L-lysine up to the leve...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Agroprint Timisoara
2007-05-01
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| Series: | Scientific Papers Animal Science and Biotechnologies |
| Subjects: | |
| Online Access: | http://spasb.ro/index.php/spasb/article/view/1630 |
| Summary: | The experiment has been carried out on 69 Tetra SL hens, 27-36 weeks old, distributed into 3 groups consisted of 23 hens. They were fed with fodder recipes with different protein levels (17, 16 and respectively 15%). These recipes have been supplemented with DL-methionine and L-lysine up to the level of 0.80% lysine and 0.38% methionine. Fish flour has participated in a proportion of 3% in group 1, 1.5% in group 2 and it was absent from the fodder structure used in group 3. The reduction of crude protein with 1-2p% compared to the available commercial products, but with an amino acid supplementation, has led to the improvement of the economic criteria regarding egg production, generating savings of 7.7% in the group with 16% CP and of 12.8% in the group with 15% CP. The egg mass has not been affected significantly (p>0.05), the best yield being achieved from the hens fed with a 16%CP recipe. |
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| ISSN: | 1841-9364 2344-4576 |