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

Abstract

First, this study aimed to evaluate the effects on hatchability of in ovo supplementation of beta alanine (βA). Second, it assessed the effects on performance, meat quality and serum constituents of broiler chickens of βA injection in ovo and of supplementation with βA in feed for the first seven days after hatching. For this purpose, 960 fertilized broiler chicken eggs were distributed to hatchery trays in four treatment groups with six replicates on day 17 of incubation. The treatment groups consisted of eggs that were not injected (T1; negative control), injected with sterile solution with 0.9% salt (T2; positive control), injected with in ovo 1% βA solution (T3), and not injected, but with chicks were fed 1% βA for the first seven days after hatching (T4). Upon hatching, chicks from T1, T2, and T3 were fed commercial starter feed. All treatments were assessed with six replicates of 28 birds (14 females and 14 males) throughout the grow-out period. As a result of this study, T3 increased hatchability, yolk-free hatching weight and chick quality, and decreased yolk weight and feed access time at hatch. Both T3 and T4 improved carcass yield and meat quality, and T3 increased serum total antioxidant status at 42 days afer hatching. The results demonstrated that in ovo βA feeding improved hatching characteristics, and βA administration in ovo or in feed improved carcass yield and meat quality without affecting growth performance.

Effects of in ovo injection of the L-carnosine on physiological indexes of neonatal broiler chicken

“…Therefore, we examined reports on the in ovo injection of L-histidine and β-alanine. It has been reported that injecting β-alanine into the eggs can enhance hatching characteristics, carcass yield, and meat quality in broiler chickens ( Atan and Kop-Bozbay, 2021 ). Similarly, injecting L-histidine (0.55 mg) into the eggs on d 7 of incubation has been shown to improve hatchability, intestinal development, and growth performance ( Xu et al., 2019 ).…”

A comparative study on feeding timing and additive types of broilers in a high-temperature environment

“…The decision on the timing of feeding of feed and useful feed additives also affects on chicken quality and yield ( Bhanja et al, 2010 ; Jha et al, 2019 ; Atan et al, 2021 ). Atan et al (2021) reported that period immediately before and after hatching is an important period that determines the efficiency and production of good quality chicken meat in broilers.…”

“…The decision on the timing of feeding of feed and useful feed additives also affects on chicken quality and yield ( Bhanja et al, 2010 ; Jha et al, 2019 ; Atan et al, 2021 ). Atan et al (2021) reported that period immediately before and after hatching is an important period that determines the efficiency and production of good quality chicken meat in broilers. Tavaniello et al (2020) found that in ovo injection of prebiotics (galactooligosaccharides) effective for alleviating HS mitigated the detrimental effects on meat quality in broilers in a high-temperature environment.…”

In ovo effect of Soursop (Annona muricata L.) leaf extract on hatching and post-hatch performance of Noiler chickens

“…Before injection, two holes were made on the broad side of the eggs using 21 g needles to ease delivery of the extract and avoid tension in the eggs during delivery of the extract, the extract was injected using an automatic syringe, and thereafter, the holes were sealed with a adhesive tape. No group of eggs was injected with saline solution because previous studies ( Atan & Kop-Bozbay, 2021 ; Karamik & Kop-Bozbay, 2020 ), reported no significant difference between the saline-injected and non-injected eggs. All the injected eggs received 0.2 ml of the extract in the air space.…”