Growth response of broiler chickens fed graded levels of yeast treated raw soya bean and full fat soya bean

Onwumelu, Ifeoma Jane (avtor), Okonkwo, Josiah Chidiebere (avtor), Akpodiete, Orienru Job (avtor)

The study was designed to determine the effect of replacing Full Fat Soya Bean (FFSB) in parts with Raw Soya Bean (RSB) treated with graded level of yeast in the diet of broiler birds. A total of fifteen diets were formulated where by RSB replaced FSSB at 0% (control), 25%, 50%, 75% and 100%, but each of these having three levels of treatment with yeast and without yeast as a control. Mean weight gain and final body weight of the broilers followed the same pattern of no differences in treatment means. Results obtained for the entire production period (0-56 days) showed that birds that were fed diet containing 75% FFSB, 25% RSB and 8 g/kg yeast compared favourably with those that were fed the control diet regarding final body weight, weight gain, average daily gain, feed intake, and the feed : gain ratio. Our study revealed that RSB at the levels fed with and without yeast inclusion had no effect on broiler chicken lethality. However, optimal performance was achieved when RSB was fed at 25% with 6 g/kg yeast inclusion at starter phase and at 25% without yeast or 75% with 12 g/kg yeast inclusion at finisher phase.

• Jezik: Angleški jezik
• Ključne besede: poultry, broiler chickens, growth, animal nutrition, soya, yeast
• Vrsta gradiva: Delo ni kategorizirano
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Leto izida: 2012
• Št. strani: Str. 47-57
• Številčenje: Letn. 100, št. 1
• PID: 20.500.12556/RUL-17714
• UDK: 636.5.084/.087
• ISSN pri članku: 1581-9175
• COBISS.SI-ID: 3084424
• Datum objave v RUL: 11.07.2014

Gradivo je del revije

• Naslov: Acta agriculturae Slovenica
• Skrajšan naslov: Acta agric. Slov.
• Založnik: Biotehniška fakulteta
• ISSN: 1581-9175
• COBISS.SI-ID: 213840640

Sekundarni jezik

• Jezik: Slovenski jezik

Izvleček

Študijo smo zasnovali z namenom, da bi proučili učinek zamenjave pražene soje s svežo sojo, obdelano s kvasovkami v obroku za piščance. Uporabili smo 15 različnih obrokov, v katerih smo praženo sojo zamenjevali s svežo sojo (0 % (kontrola), 25 %, 50 %, 75 % in 100 %), ki je bila obdelana z različno količino kvasovk, oziroma brez obdelave s kvasovkami. Povprečni prirasti in končna telesna masa brojlerjev nista kazala pomembnih razlik med različnimi obdelavami. Rezultati celotnega poskusnega obdobja (0-56 dni) kažejo, da so imeli piščanci, krmljeni s 75 % pražene in 25 % surove soje, obdelane z 8 g kvasovk/kg v primerjavi s kontrolno skupino višjo telesno maso ob koncu pitanja, višje dnevne priraste, boljšo konzumacijo in konverzijo krme. Naši rezultati kažejo, da vključitev surove soje v obrok nima negativnih posledic za zdravje piščancev. Najboljše rezultate smo dosegli z uporabo 25 % surove soje, obdelane z 6 g/kg kvasovk v štarterju in 25 % surove soje brez obdelave s kvasovkami oziroma s 75 % surove soje, obdelane z 12 g/kg kvasovk v finišerju.

• Ključne besede: perutnina, pitovni piščanci, rast, prehrana živali, soja, kvas