Crystallin amino acids (like L-lysine, DL-methionine and L-threonine) are integral to muscle development and carcass quality in poultry and swine, primarily functioning as essential building blocks for protein synthesis. In poultry, mentioned amino acids are critical for optimal muscle growth, influencing muscle fiber hypertrophy and overall carcass yield (Kim et al., 2018). Similarly, in swine, adequate supply of these amino acids enhances protein deposition and lean tissue accretion, directly impacting carcass composition and meat quality (Nissen et al., 2014).
Crystallin amino acids serve as precursors for myogenic regulatory factors, which orchestrate muscle cell proliferation and differentiation during development (Li et al., 2019). Their role extends to modulating metabolic pathways that supply energy and substrates necessary for muscle hypertrophy (Wu et al., 2020). Deficiencies in key amino acids impair muscle fiber development, resulting in reduced carcass yield and compromised meat quality traits such as tenderness and marbling (Zhou et al., 2017). Moreover, amino acid supplementation has been shown to improve muscle growth efficiency, feed conversion ratio, and overall carcass traits in both poultry and swine (Liu et al., 2021).
The balance of crystallin amino acids influences muscle fiber type composition, which affects meat texture and flavour (Gao et al., 2019). Additionally, amino acids like arginine may stimulate nitric oxide production, enhancing blood flow and nutrient delivery to developing muscles (Shen et al., 2016).
Overall, optimizing crystallin amino acid intake is crucial for maximizing muscle development and carcass quality in these livestock species. Future research should focus on precise amino acid requirements and their regulatory mechanisms to further improve production efficiency (Johnson et al., 2022).
Conclusion
Promois International (www.promoisinternational.com) is one of the best-known manufacturers of the mentioned amino acid.
References are available for request.
We at Promois International are a leading manufacturer and supplier of feed supplements and additives across the globe having a presence in more than 70 countries of the world including Spain, Mexico, Romania, Thailand, Vietnam, Azerbaijan, Georgia, Bangladesh, Sri Lanka, Algeria, Ghana, Uganda, Turkey, Venezuela & others to name a few.