In Ovo β-Alanin Solüsyonu Alan Yeni Çıkmış Etlik Piliç Civcivlerinde Kuluçka Randımanı, Bazı Kuluçka Parametreleri, Kalite Skoru ve Yaşama Gücü

Abstract

This study was conducted to evaluate the effects of In ovo injection of β-Alanine which is a modified form of the alanine amino acid on hatchability, hatching weight, chick quality score and survival in broiler breeder eggs. For this purpose, 120 fertile eggs from Ross 308 breeder (32-week-old) were allocated randomly to four groups with 3 replicates. Except the negative control group eggs (non injected; NC), to the amniotic fluid of the eggs in the other 3 groups were injected with 1 ml solutions 0.9% salt (Positive control, PK), 0.75% (0.75βA) or 1.5% (1.5βA) by using 19 mm and 27 gauge needle. Death rates at the different stages of embryonic development, hatching yield, weights and quality scores of chicks and mortalities were recorded at hatching day. Hatching weight of the chicks in the 0.75βA group was higher than other two control groups. Accessing feed, determined as an indicator of chick quality, was better in the 0.75βA group. Conversely, mobility score of chicks in the NC group was higher than other groups. Hatching yield, chick quality score and mortalities of the first week were not affected from In ovo βA injection. Results of this study demonstrated that In ovo βA injection can be used up to 1.5% without any deteriorations on weight, quality and mortalities of chicks but 0.75% βA injection induced better hatching characteristics.

Beta alanine effects immediately pre- and post hatch on chick quality, carcass yield and meat quality in broilers

“…Therefore, hatching weight alone should not be considered a good indicator of chick quality (Decuypere & Bruggeman, 2007). In the light of the present results (Table 2) and with supporting evidence from other studies (Kop-Bozbay et al, 2018;Araújo et al, 2019), it may be concluded that a higher number of chicks of better quality could be obtained with in ovo βA injection on the 17th day of incubation. Therefore, chicks fed βA in ovo are healthier and have higher life force than their unsupplemented counterparts (Tona et al, 2003;Decuypere & Bruggeman, 2007).…”

“…The T3 treatment increased the TAS value compared with the T1 treatment (P <0.05). Within a row, means with a common superscript were not different at probability P =0.05; βA: beta alanine T1: eggs not injected, T2: eggs injected with 0.9% sterile saline solution, T3: eggs injected with 1% βA solution, T4: chicks supplemented with βA for seven days after hatching, FCR: feed conversion ratio Within a row, means with a common superscript were not different at probability P =0.05 T1: eggs not injected, T2: eggs injected with 0.9% sterile saline solution, T3: eggs injected with 1% βA solution, T4: chicks supplemented with βA for seven days after hatching, WHC: water-holding capacity, CIE L*: lightness (black = 0 and white = 100), CIE a*: green-red opponent colours <0 indicates greenness, >0 indicates redness, CIE b*: blue-yellow opponent colours (<0 indicates blueness, >0 indicates yellowness) Kop-Bozbay et al (2018) observed that in ovo feeding of βA at a dose of 0.75% increased CW by 7.4%. In the current study, T3 produced a 4.95% increase in CW at hatching compared with the control group.…”

“…However, carnosine supplementation may not be effective because it is broken down into and during digestion (about 40% βA by weight). In another study, in ovo βA feeding had positive effects on the weight of chicks at hatching and on their mobility (Kop-Bozbay et al, 2018). However, although there are some studies on dietary βA (Tomonaga et al, 2005(Tomonaga et al, , 2006(Tomonaga et al, , 2012Kralik et al, 2014Kralik et al, , 2015Qi et al, 2018) in poultry, there is a gap in the literature in which βA supplementation in ovo and early post hatch have not been studied simultaneously.…”