Farklı seviyelerde kullanılabilir fosfor ihtiva eden damızlık bıldırcın rasyonlarına fitaz enzimi ilavesinin performans ve kabuk kalitesine etkisi
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Dosyalar
Tarih
2005-09-28
Yazarlar
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Yayıncı
Selçuk Üniversitesi Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışma, farklı seviyelerde kullanılabilir fosfor (KP) içeren rasyonlarla yemlenen damızlık bıldırcın rasyonlarına fitaz enzimi ilavesinin performans ve kabuk kalitesine etkisini tespit etmek için yapılmıştır. Üç x 4 faktöriyel deneme planında, 3 KP seviyesi (% 0.15, 0.25 ve 0.35) ve dört fitaz seviyesinin (0, 300, 600 ve 1200 U/kg) oluşturulduğu 12 muamele, her birinde 6 bıldırcın (erkek/dişi oranı: 1/2) bulunan alt gruplarla 4 tekerrürlü olarak denenmiştir. Yedi haftalık yaşta toplam 288 adet damızlık Japon bıldırcını 28'er günlük 5 periyot halinde deneme rasyonları ile yemlenmişlerdir. Yem ve su ad-libitum olarak verilmiş ve 16 saat aydınlatma uygulanmıştır. Ana faktör olarak rasyon KP ve fitaz seviyeleri ve KP x fıtaz interaksiyonları, nihai canlı ağırlık, canlı ağırlık artışı, ölüm oranı, ortalama yumurta ağırlığını, yem tüketimini, mutlak kabuk ağırlığı (g), kabuk oranı (%) ve döl verimini önemli olarak etkilememiştir. Rasyon KP seviyesinin 2., 3. ve 5. periyotları ile tüm araştırma dönemi yumurta verimi- YV (adet ve %), yumurta kitlesi (YK), yem değerlendirme katsayısı- YDK (yem, g/yumurta kitlesi, g) ve çıkış gücü üzerine etkisi önemli olmuş ve bu parametreler % 0.15 KP içeren rasyonla beslenen bıldırcınlarda, düşük bulunmuştur (P<0.05, P<0.01). Rasyon fitaz seviyesi ve KP x fitaz interaksiyonları YV, YK, YDK ve çıkış gücünü önemli olarak etkilememiştir. Kabuk mukavemeti rasyon KP ve fıtaz seviyelerinden etkilenmemiş ise de, % 0.25 KP + 1200 U/kg fıtaz içeren rasyonla beslenen bıldırcınlarda maksimum olmuş ve bu grubun kabuk mukavemeti diğer bazı gruplardan önemli derecede (P<0.01) yüksek olmuştur. Denemenin ortasında toplanan yumurtalarda ölçülen kabuk kalınlığı, % 0.35 KP'li rasyonla beslenen bıldırcınlarda, % 0.15 ve 0.25 KP'li rasyonla beslenen bıldırcınlardan önemli derecede yüksek olmuştur.
This study was carried out to ascertain the effect of adding phytase on the performance and egg quality of breeder quail fed diets containing different levels of nonphytate phosphorus-NFP (available phosphorus). Twelve treaments consisting of three levels of NFP (0.15, 0.25, 0.35 %) and four levels phytase (0, 300, 600, 1200 U/kg) in 3 x 4 factorial arragement were used with four replicates of six birds each (male/female ratio: 1/2). A total of 288 breeder Japanese quail at seven weeks of age m were fed with experimental diets for five 28 days periods. Feed and water were supplied for ad-libitum. Light was provided 16 hours daily. Dietary NFP and phytase levels as the main factor and NFP x phytase interaction had no significant effect on final live weight, body weight gain, mortality, average egg weight, daily feed comsumption, absolute shell weight (g), shell weigh percentage and fertility. The effect of dietary NFP levels on egg production (number and %) in the second, third, fifth periods and average egg production during the experiment and average egg mass, feed conversion ratio-FCR (feed, g/egg mass, g) and hatchability were significant and these parameters were decreased in quail fed the diet with 0.15 % NFP compared with those fed diet containing 0.25 % NFP (P<0.05, P<0.01). The phytase levels and NFP x phytase interaction did not have significant effection egg production, egg mass, FCR and hatchability. Egg shell strength was not affected by dietary NFP and phytase levels, but it was significantly higher than other groups (PO.01). Shell thickness with membrans in eggs which were collected in the middle of experiment was significantly higher in quail fed the 0.35 % NFP than those from quail fed diet with 0.15 and 0.25 % NFP.
This study was carried out to ascertain the effect of adding phytase on the performance and egg quality of breeder quail fed diets containing different levels of nonphytate phosphorus-NFP (available phosphorus). Twelve treaments consisting of three levels of NFP (0.15, 0.25, 0.35 %) and four levels phytase (0, 300, 600, 1200 U/kg) in 3 x 4 factorial arragement were used with four replicates of six birds each (male/female ratio: 1/2). A total of 288 breeder Japanese quail at seven weeks of age m were fed with experimental diets for five 28 days periods. Feed and water were supplied for ad-libitum. Light was provided 16 hours daily. Dietary NFP and phytase levels as the main factor and NFP x phytase interaction had no significant effect on final live weight, body weight gain, mortality, average egg weight, daily feed comsumption, absolute shell weight (g), shell weigh percentage and fertility. The effect of dietary NFP levels on egg production (number and %) in the second, third, fifth periods and average egg production during the experiment and average egg mass, feed conversion ratio-FCR (feed, g/egg mass, g) and hatchability were significant and these parameters were decreased in quail fed the diet with 0.15 % NFP compared with those fed diet containing 0.25 % NFP (P<0.05, P<0.01). The phytase levels and NFP x phytase interaction did not have significant effection egg production, egg mass, FCR and hatchability. Egg shell strength was not affected by dietary NFP and phytase levels, but it was significantly higher than other groups (PO.01). Shell thickness with membrans in eggs which were collected in the middle of experiment was significantly higher in quail fed the 0.35 % NFP than those from quail fed diet with 0.15 and 0.25 % NFP.
Açıklama
Anahtar Kelimeler
Fosfor, Damızlık bıldırcın, Fitaz, Performans, Kabuk kalitesi, Breeder quail, Phosphorus, Phytase, Performance, Shell quality
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Olgun, O. (2005). Farklı seviyelerde kullanılabilir fosfor ihtiva eden damızlık bıldırcın rasyonlarına fitaz enzimi ilavesinin performans ve kabuk kalitesine etkisi. Selçuk Üniversitesi, Yayımlanmış yüksek lisans tezi, Konya.
