Abstract |
The study was conducted to determine the apparent ileal digestibility (AID) and standardized ileal digestibility ( SID) of AA in egg from hens hyperimmunized with Escherichia coli K88 antigens (EGG) fed to weaned pigs. Spray dried porcine plasma (SDPP) was included for comparison. Eight barrows (Yorkshire-Landrace × Duroc; initial BW of 17 ± 1 kg) were fitted with a T- cannula at the distal ileum and fed 2 diets in a completely randomized design to give 4 replicates per diet. The diets were corn (Zea mays) starch based with either EGG or SDPP as the sole source of protein and were formulated to contain 130 g/kg CP. At the end of the study, a 50 g/kg casein diet was fed to all pigs (n = 8) to quantify endogenous N and AA losses to determine SID. Titanium dioxide (3 g/kg) was included in the diets as an indigestible maker. Each period lasted for 7 d. Pigs were adapted to their respective diets for 5 d followed by 12 h of continuous ileal digesta collection on days 6 and 7. Daily feed allowance was set at 4% BW at the beginning of each period and offered in 2 equal portions at 0800 and 1600 h as a dry mash. Pigs had unlimited access to water via low pressure nipple drinkers. The AID (%) of CP and indispensable AA were lower (P < 0.05) in EGG compared with SDPP. The SID (%) of CP (82 vs. 96) and indispensable AA were lower (P < 0.05) in pigs fed EGG compared with SDPP. In conclusion, the average AID and SID of N and indispensable AA in EGG are lower than in SDPP when fed at high levels.
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Authors | J M Heo, E Kiarie, R K Kahindi, P Maiti, T A Woyengo, C M Nyachoti |
Journal | Journal of animal science
(J Anim Sci)
Vol. 90 Suppl 4
Pg. 239-41
(Dec 2012)
ISSN: 1525-3163 [Electronic] United States |
PMID | 23365342
(Publication Type: Journal Article, Randomized Controlled Trial)
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Chemical References |
- Amino Acids
- Antigens, Bacterial
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Topics |
- Amino Acids
(chemistry, metabolism)
- Animal Feed
(analysis)
- Animal Nutritional Physiological Phenomena
- Animals
- Antigens, Bacterial
(immunology)
- Chickens
- Diet
(veterinary)
- Eggs
(analysis)
- Escherichia coli
(immunology, metabolism)
- Immunization
- Male
- Nutritive Value
- Swine
(physiology)
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