THE INFLUENCE OF PROTEIN, METHIONINE AND LYSINE FEEDED LEVEL, IN HENS PERFORMANCES DURING THE PLATEAU PART OF THE LAYING CURVE
The experiment has been carried out in the Poultry Department from the Didactic Station of Banat`s University of Agricultural Sciences and Veterinary Medicine Timişoara, on laying hens - the Shaver 579 hybrid, being in the plateau part of the laying curve. We have distributed the hens in 4 groups (n...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Agroprint Timisoara
2023-11-01
|
| Series: | Scientific Papers Animal Science and Biotechnologies |
| Subjects: | |
| Online Access: | https://spasb.ro/index.php/public_html/article/view/1832 |
| Summary: | The experiment has been carried out in the Poultry Department from the Didactic
Station of Banat`s University of Agricultural Sciences and Veterinary Medicine
Timişoara, on laying hens - the Shaver 579 hybrid, being in the plateau part of the
laying curve. We have distributed the hens in 4 groups (n=25), with fodder recipes
including two protein levels (16.2% - group 1 and respectively 15.2% groups 2,3
and 4) and different amino acid contents (about 0.77% lysine and 0.38% methionine
– groups 1 and 2; only 0.70% lysine and 0.34% methionine group 3, respectively
0.82% lysine and 0.42% methionine group 4). For the entire studied period, the
highest egg production and the lower specific consumption, was registered for group
4 and the lowest production performances were assigned in group 3, which had been
fed with a diet containing 15.2% crude protein and an amino-acids level lower with
10% than the NRC 1994 requirements. A strong positive correlation (r=0.80,
p=0.015) for the egg production versus protein, lysine and methionine intake was
obtained in lot 3. |
|---|---|
| ISSN: | 1841-9364 2344-4576 |