Economic aspects for the application of extruded rapeseed oilcake in poultry feeding | Ekstrudēto rapša raušu izmantošanas ekonomiskie aspekti putnu ēdināšanā
2008
Vitina, I., Latvia Univ. of Agriculture, Sigulda (Latvia). Agency Research Inst. of Biotechnology and Veterinary Medicine Sigra | Krastina, V., Latvia Univ. of Agriculture, Sigulda (Latvia). Agency Research Inst. of Biotechnology and Veterinary Medicine Sigra | Miculis, J., Latvia Univ. of Agriculture, Sigulda (Latvia). Agency Research Inst. of Biotechnology and Veterinary Medicine Sigra | Cerina, S., Latvia Univ. of Agriculture, Sigulda (Latvia). Agency Research Inst. of Biotechnology and Veterinary Medicine Sigra
anglais. Economic effectiveness for the application of extruded rapeseed oilcake and cold pressed rapeseed oilcake in poultry feeding for broiler chickens of cross Ross 308 and laying hens of cross Lohmann Brown was evaluated during the experiments. The extrusion process of rapeseed oilcake increased feed crude protein digestibility by 2.52% for broilers and by 5.02% for layers in comparison with cold pressed rapeseed oilcake. The increase of extruded rapeseed oilcake protein digestibility is economically profitable in different aspects, like, increased feed protein digestibility and increased poultry productivity, additional income gained from the sales of products, and decreased amount of non digested protein excreted in manure. The supplement of extruded rapeseed oilcake to broilers ration increased the live weight by 6.92% and income by 9.4% in comparison with cold pressed rapeseed oilcake. Feeding of extruded rapeseed oilcake to laying hens increased the laying intensity by 2.50%, and thus ensured higher income by 5.60% from the sales of 1000 eggs in comparison with cold pressed rapeseed oilcake. The amount of non digested protein excreted with manure and these protein losses in cash form an economically significant aspect in extruded rapeseed oilcake feeding out. By feeding out extruded rapeseed oilcake to broiler chickens the costs of the excreted amount of non digested protein were 9.16% of the costs of in-taken protein, while the amount of losses was by 6.75% smaller in comparison with cold pressed rapeseed oilcake. The costs of non digested protein to hens in comparison with the costs of the amount of in-taken protein by feeding out extruded rapeseed oilcake were by 5.08% smaller than by feeding cold pressed rapeseed oilcake. Extruded rapeseed oilcake feeding out to poultry increased income from the sales of products, and decreased the amount of non digested protein excreted in the environment, i.e., less economic losses and less pollution of the environment.
Afficher plus [+] Moins [-]letton. Izmēģinājuma apstākļos izvērtēja ekstrudēto rapša raušu izmantošanas ekonomisko efektivitāti krosa Ross 308 broilercāļu un krosa Lohmann Brown dējējvistu ēdināšanā salīdzinājumā ar neapstrādātiem rapša raušiem. Ekstrūzijas process palielināja rapša raušos esošā proteīna sagremojamību broilercāļu zarnu traktā par 2.52% un dējējvistu zarnu traktā par 5.02% salīdzinot ar neapstrādātiem rapša raušiem. Ekstrudēto rapša rauša proteīna sagremojamības paaugstināšana ir ekonomiski izdevīga dažādos aspektos. Tas ir, paaugstinājās putnu produktivitāte. Tā nodrošināja papildieņēmumus par produkcijas realizāciju, vienlaicīgi samazinājās nesagremotā proteīna daudzuma izdalīšanās no gremošanas trakta ar putnu mēsliem t.i., samazinājās barības proteīna zudumi. Tā broileru dzīvmasa paaugstinājās par 6.92% un ieņēmumi par 1000 broileru kautiznākuma realizāciju par 9.0% salīdzinot ar neapstrādātu rapša raušu izmantošanu. Dējējvistu dējības intensitāte palielinājās par 2.50% un 1000 olu realizācijas ieņēmumi paaugstinājās par 5.60% salīdzinot ar neapstrādātu rapša raušu izmantošanu. Izēdinot barību ar ekstrudētiem rapša raušiem nesagremotā proteīna ekskrētā daudzuma izmaksa broilercāļiem bija samazināta par 6.59% un dējējvistām – par 5.08% salīdzinot ar neapstrādātiem rapša raušiem.
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