Effects Of Papaya Leaf Meal, Pineapple Skin Meal And Vitamin D3 Supplements On Meat Quality Of Spent Layer Hens
A study was conducted to evaluate the effects of supplementation of vitamin D3, papaya leaf meal (PLM) and pineapple skin meal (PSM) for 7 days prior to slaughter on meat quality of spent layer chickens. In Experiment 1, based on Completely Randomized Design, 40 spent layer chickens (ISA Brown) w...
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| 格式: | Thesis |
| 語言: | English English |
| 出版: |
2010
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| 主題: | |
| 在線閱讀: | http://psasir.upm.edu.my/id/eprint/12354/1/FP_2010_4A.pdf |
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| 總結: | A study was conducted to evaluate the effects of supplementation of vitamin D3,
papaya leaf meal (PLM) and pineapple skin meal (PSM) for 7 days prior to slaughter
on meat quality of spent layer chickens. In Experiment 1, based on Completely
Randomized Design, 40 spent layer chickens (ISA Brown) were allotted to control
(n=10), vitamin D3 (n=10), papaya leaf meal (n=10) and pineapple skin meal (n=10)
treatments. The combined effects of vitamin D3 and PLM were also examined in this
study based on 2×4 factorial design of which, 80 ISA Brown spent layer hens were
equally divided to PLM with vitamin D3 (n=40) and PLM without vitamin D3
(n=40). Ten birds of each of the main treatment group (PLM with vitamin D3 and
PLM without vitamin D3) were then subjected to the levels of 0%, 0.5%, 1% and 2%
of PLM. Meat quality analysis (shear force values, drip loss, cooking loss and colour) were carried out for both experiments. In Experiment 1, both vitamin D3 and
PLM have significantly improved tenderness (reduced shear force values), drip loss,
cooking loss and colour. However, the supplementation of PSM has resulted in no
significant effect on all of the analysed meat quality traits. Meanwhile, the results
from Experiment 2 demonstrated that PLM without the inclusion of vitamin D3 has
significantly improved meat tenderness, cooking loss and colour. In general, the
study has highlighted the potential benefits of PLM and vitamin D3 supplementation
for improving meat quality in spent chicken. |
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