The effect of digestibility of maize hybrids on production performance of fattening young cattle
Uticaj svarljivosti hibrida kukuruza na proizvodne rezultate tovne junadi
Abstract
The effects of use of silage made from 4 maize hybrids (A, B, C and) of different dry matter digestibility (DM) on production performance of fattening cattle were investigated. Trial was carried plan on 60 male cattle of Holstein-Friesian Black and White breed, divided into 4 groups of 15 heads of each. Nutrition trial lasted 84 days. DM digestibility of maize hybrids used in this nutrition trial established in vitro was 58.38; 67.57; 60.74 and 61.91%, realized average daily gains of cattle were 813; 884; 816 and 836 grams and established differences were significant (A,C P lt 0.05 and A,B P lt 0.01). Silage digestibility established by indirect method with Cr2O3 was 65.64; 76.10; 70.90 and 72.78 % and differences were also significant (A,B P lt 0.01and A,C P lt 0.05). Differences in in vitro digestibility of dry matter of maize hybrids were in the amount of 9.2 percent points (67,57:58,38%) resulted in greater body mass of young cattle in average by 6,73 kg per head, i.e. higher daily... gain of young cattle by 71 grams or 8,7%. Results of these researches indicated that dry matter digestibility of maize hybrids is extremely significant parameter of nutritive value.
Ispitivani su efekti korišćenja silaža 4 hibrida kukuruza (A, B, C i D) različite svarljivosti suve materije (SM) na proizvodne rezultate tovne junadi. Ogled je izveden po šemi potpuno slučajnog plana na 60 muških junadi holštajn frizijske crno - bele rase, raspoređene u 4 grupe od po 15 grla u svakoj. Ishranbeni ogled trajao je 84 dana . Svarljivost SM hibrida kukuruza korišćenih u ishranbenom ogledu utvrđena in vitro metodom iznosila je 58.38; 67.57; 60,74 i 61.91% ostvareni su prosečni dnevni prirasti junadi od 813; 884; 816 i 836 grama a ispoljene razlike bile su signifikantne (A,C P lt 0.05 i A, B P lt 0.01) Svarljivost silaža utvrđena indirektnom metodom sa Cr2O3 iznosila je 65.64; 76.10; 70.90 i 72.78 % a razlike su takođe bile signifikantne (A, B P lt 0.01 i A,C P lt 0.05). Razlike u in vitro svarljivosti suve materije od hibrida kukuruza od 9.2 procentna poena (67,57:58,37%) u toku 84 dana ogleda rezultirale su u većoj telesnoj masi junadi u proseku za 6,73 kg po grlu, odnosno... većim dnevnim prirastom junadi od 71 gram ili 8,7%.
Keywords:
digestibility / maize hybrids / silage / fattening cattleSource:
Biotechnology in Animal Husbandry, 2009, 25, 5-6-2, 677-686Publisher:
- Institut za stočarstvo, Beograd