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Title:
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Strategies of use of a specific immunoglobulin-rich egg yolk powder in weaning piglets
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Author:
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Vilà i Miquel, Borja; Peris, S.; Calafat, F.; Fontgibell i Seritjol, Anna; Esteve Garcia, Enric; Brufau de Barberà, Joaquim
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Other authors:
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IRTA. Recerca i Tecnologia Agroalimentàries |
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Abstract:
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Two experiments were performed to determine the best strategy of use of the product
TRACTcare® 4P (ITPSA) (TC, specific immunoglobulin-rich egg yolk powder within an
energetic fatty acid matrix) in piglets from weaning and for 6 weeks, in diets without or
with inclusion of antibiotics. Each trial was performed with 144 piglets in 24 pens, in a
completely randomized design blocked by initial body weight. Feeds were formulated
according to animal requirements in two periods. In the first trial no antibiotics were
included in the feeds and no room disinfection from previous trial was performed; treatments
were: 1) Negative control (NC); 2) NC+TC on top of the feed within the hopper for the first
3 days on trial (30 g/pig×day), and eventually if diarrhea appeared (TCOT); 3) NC+TC ad
libitum provided in an extra hopper within the pen (TCAL); and 4) NC+TC at 5 g/kg added to
the feed in the mixer (TC5). In the second trial, treatments were: 1) Positive control: basal diet
that included 250 mg/kg amoxiciline (BD)+100 mg/kg colistine (AC); 2) BD+2 g/kg TC
(TC2A); 3) BD+5 g/kg TC (TC5A); and 4) BD+8 g/kg TC (TC8A). In diets without antibiotics,
the product TC at 5 g/kg in the feed numerically improved BW by 8% compared to Control
animals, while G:F was almost identical between both groups. When antibiotics were used in
the feed, replacement of colistin at 100 mg/kg for TC at 2 g/kg in feed numerically improved the
performance compared to Positive control animals (for the whole trial period ADG 8% better:
390 g vs. 361 g; G:F 1% better: 0.748 kg/kg vs. 0.742 kg/kg), possibly due to the stimulation of
feed consumption at weaning. In both trials, the lower number of dead and culled animals from
TC5 and TC2A together with higher BW represented an advantage over Control treatments of
6% to 10% animals more and 15% to 17% total BW more at the end of the trial. |
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Publication date:
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2010 |
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Subject (UDC):
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63 - Agricultura. Silvicultura. Zootècnia. Caça. Pesca |
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Subject(s):
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Garrins -- Alimentació i aliments |
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Rights:
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L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: http://creativecommons.org/licenses/by-nc-sa/3.0/es/ |
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Pages:
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9 p. |
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Document type:
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Article |
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Published by:
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Elsevier
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