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Effect of feeding plans on ruminants production performance
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Abstract: Thirty Ossimi lambs of 31.4 kg average live body weight were divided into 6 experimental groups of 5 animals each for feeding trial . In-addition, 18 Ossimi mature rams were used for a metabolism trial, 3 animals in each group. The plans of feeding were : G1) 100% of concentrate was offered before berseem and water. G2) 50% of concentrates were offered then berseem and water then the rest of concentrate. G3) Experimental animals were fed berseem and water followed by 100% of concentrate. G4) 100% of concentrate then water before berseem .G5) 50% of concentrates were offered then water before berseem and 50% of concentrate G6) water, berseem and 100% of concentrate at morning.
There were no significant differences in DM intake due to feeding sequences , G5 had the highest live body weight and the highest values of feed efficiency related to DMI, CPI, TDNI, SVI, DCPI (0.188 , 1.46 , 0.257 , 0.296 and 1.57 gm, respectively) than the other values for feed efficiency. Values of nutrient digestibilities, feeding values (TDN , SE and DCP) were the highest for G5. The nitrogen balances were positive for all experimental groups . Water apparent balance relatively to metabolic body size (ml/kg W0.75 ) was higher for G5 than G1.
Rumen pH ,the highest value (p<0.05 ; 6.95 ) was recorded for G3 after 2 h post first feeding. Ruminal ammonia-N concentration, there were the high value for G2 at zero and 2 h post first feeding, while after 4 h G1 was the highest value. Animals of G2 showed the highest value of ruminal TVFA’ s (15.68 m.eq/100ml) at 2h and 4h post first feeding. Animals of G2 had the highest plasma total protein (9.04 gm/100ml) after 2 h post feeding and G3 showed lower plasma urea value (32.45 mg/100ml) than G1 (48.85 mg/100ml).
Key words : Sequences of feeding, frequency, forage, concentrate, feed intake, gain, feed efficiency, digestibility, feeding values, nitrogen balance, water balance, some rumen and blood parameters.
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| Publication year |
1998
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| Availability location |
معهد بحوث الانتاج الحيوانى
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| Availability number |
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| Organization Name |
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| Country |
Egypt
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| Department |
Animal Nutrition Research Departement
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Blood composition.
Concentrates.
Digestibility.
Feed conversion efficiency.
Feed intake.
Forage.
Performance testing.
Sheep.
Water balance.
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| Publication Type |
Master Thesis
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