Estimation of Optimal Lysine in Quail Chicks During the Second and Third Weeks of Age

Estimation of lysine requirements for growing Japanese quails

“…Tesseraud et al (1996) showed the critical effects of dietary lysine on proteolysis in breast muscle. Some studies revealed the higher lysine requirement for maximising breast meat yield than bird performance (Dozier, Kidd, & Corzo, 2008;Labadan, Hsu, & Austic, 2001;Mehri, Jalilvand et al, 2013) supporting the pivotal role of lysine in breast muscle development (Tesseraud, Le Bihan-Duval, Peresson, Michel, & Chagneau, 1999).…”

“…Recently, Mehri, Jalilvand et al. () reported that lysine requirements of growing quails for carcass attributes were approximately 7% higher than growth performance; however, the same laboratory failed to estimate the lysine requirement for carcass portions in a subsequent study (Mehri et al., ). Those studies showed that dietary CP may affect the estimated value of lysine requirement, where in low‐CP diet the lower lysine estimation for growth performance was achieved than that in high‐CP diet.…”

“…Despite limited information on amino acid requirements of modern strains of Japanese quail, recent data from our laboratory showed that lysine requirements of growing quails might be different than NRC () recommendation. Mehri, Jalilvand, Ghazaghi, Mahdavi, and Bagherzadeh‐Kasmani () reported that lysine requirement for maximising carcass yield might be 13.40 g/kg using 230 g/kg CP diet, ranged from 11.50 to 13.40 g/kg of diet. The subsequent study showed that the optimal lysine for minimum feed:gain (F:G) was 13.60 g/kg using high‐CP diet (i.e., 250 g/kg of diet), almost 105% of NRC () recommendation, ranged from 12.30 to 13.60 g/kg of diet (Mehri, Bagherzadeh‐Kasmani, & Asghari‐Moghadam, ).…”

Effects of dietary lysine supplementation on performance, egg quality, and development of reproductive system in egg-laying ducks

“…In avian species, the second limiting amino acid, lysine (Lys), is an indispensible amino acid (Schutte & Smink 1998) because it is required to maintain the normal physiological functions of immune system (Kidd 2004), improve intestinal functions (Vaezi et al 2011), regulate protein and lipid metabolism (Tesseraud et al 1996;Fouad & El-Senousey 2014), maximize the productive performance (Tesseraud et al 1999;Bons et al 2002;Lemme et al 2002;Mehri et al 2013), and increase consumer acceptance through enhancing the product quality (Leclercq 1998). Deficiency of Lys induces a significant reduction in immune organs development (spleen and bursa of fabricius) (Mulyantini 2014), antibody synthesis (Mahdavi et al 2012), feather growth (Lima et al 2016), alter secretion of thyroid gland hormones, growth hormones (Carew et al 1997(Carew et al , 2005Wang et al 2006), impairs growth performance, feed efficiency, egg yield, egg mass, carcass yield, protein accretion (Kidd & Fancher 2001;Faria et al 2003;Dozier et al 2008Dozier et al , 2009Dozier & Payne 2012;Lima et al 2016), and promote abdominal fat deposition (undesirable fat) which lower meat quality and consumers' acceptance (Fouad & El-Senousey 2014).…”

“…Dietary Lys supplementation enhances cellular and humoral immune responses in broiler chickens (Chen et al 2003;Panda et al 2011;Taghinejad-Roudbaneh et al 2011). Studies with commercial broiler chickens (Faridi et al 2015), local breed of chickens (Nasr & Kheiri 2011;Yuan et al 2015), quails (Mehri et al 2013), turkeys (de Paula Dorigam et al 2016), White Pekin ducks (Xie et al 2009), and local Korean ducks (Wickramasuriya et al 2016) suggested increasing Lys levels to improve average daily gain, feed consumption, and feed efficiency. Moreover, carcass yield, breast meat yield, water-holding capacity, tenderness, and meat taste improved as a result of increasing Lys concentrations, whereas abdominal fat and cooking loss declined which led to enhance meat quality and consumer acceptance (Berri et al 2008;Watanabe et al 2015;Zhai et al 2016).…”