[The use of a partly-hydrolysed straw meal for the feeding of weaned piglets. 1. Increased production and feed expense as well as nutrient digestibility and buffer capacity in rations with various high portions of partly-hydrolysed straw meal].
In studies with weaned piglets of the land race the usability of partly hydrolysed straw meal (PSM) in concentrate - straw meal mixtures was tested over a period of 56 days (42nd-98th day of life; 1st-8th week of feeding. The hydrolysed straw product was there tested in a parallel experiment each without and after neutralization (by means of CaCO3) in quotas of 5, 10 and 15% as supplement to the concentrate feed (based on dry matter) in comparison to a sole concentrate feeding. Daily weight gain and feed and energy expenditure as well as nutrient digestibility and the buffer effect of the PSM rations were ascertained. Measured by weight gain, feed intake and concentrate- and energy expenditure related weight gain, a 10% quota of partly hydrolysed straw meal in a period near weaning (1st-4th week of feeding) had the highest effect and was far superior to traditional concentrate feeding. Lower quotas of PSM in this period did not show a sufficient dietetic effect (diarrhea symptoms), higher reduced the effect on the performance parameters. In the period more remote from weaning (5th-8th week of feeding) the effect of the straw meal integration was generally reduced, a quota of about 5% proved optimal. The registered higher daily weight gains in the total test period (1st-8th week of feeding in which concentrate - straw meal mixtures (relative 106-130%) were closely related to the daily intake of digestibility organic matter. The decrease in digestibility of organic matter in the total ration remained small with the use of the well fermentable crude fibre from the hydrolysed straw product and the balance was overcompensated by higher feed intake. A pH-value decrease of the feed mixtures and a physiologically suitable influence on the pH-value in the stomachs of the test animals could be ascertained due to the buffer capacity of the hydrolysed straw products used. With regard to this, the non-buffered hydrolysed straw product had a higher effect, which was, among other things, reflected in higher performances.
Münchow
H
H
Sektion Tierproduktion und Veterinärmedizin, Humboldt-Universität zu Berlin Bereich Tierfütterung und Ernährungsschäden.
Hasselmann
L
L
Finger
M
M
D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D002021:Buffers; D004043:Dietary Fiber / Q000378:metabolism; D004063:Digestion; D004435:Eating; D004734:Energy Metabolism; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D013552:Swine / Q000254:growth & development* / Q000378:metabolism
D002021:Buffers; D004043:Dietary Fiber
Untersuchungen zum Einsatz von teilhydrolysiertem Strohmehl in der Fütterung von Absetzferkeln. 1. Mitteilung. Zunahmeleistung und Futteraufwand sowie Nährstoffverdaulichkeit und Pufferkapazität bei Rationen mit unterschiedlich hohem Anteil an teilhydrolysiertem Strohmehl.