Effect of varying dietary concentrations of lysine on growth performance of the Pearl Grey guinea fowl

Abstract

Lysine is the second limiting essential amino acid in poultry nutrition after methionine. Understanding the lysine requirement of poultry is necessary in guiding formulation of least cost diets that effectively meet the nutritional needs of individual birds. The lysine requirement of the Pearl Grey guinea fowl (PGGF) is not known. Therefore, the objective of this study was to assess the appropriate lysine levels required for optimal growth attributes of the PGGF. In a 12-week study, 512 one-day-old Pearl Grey guinea keets were weighed individually and randomly assigned to electrically heated battery brooders. Each battery contained 12 compartments housing 15 birds each. Eight diets fed to the experimental birds consisted of corn-soybean meal and contained 0.80 to 1.22 digestible lysine in 0.06% increments. Feed and water were provided at free choice and the diets were replicated twice. Experimental diets contained 3,100 Kcal metabolizable energy (ME)/kg diet and 23% crude protein (CP), 3,150 ME Kcal ME/kg diet and 21% CP, and 3,100 ME/kg and 17% CP, at zero to 4, 5 to 10, and 11 to 12 weeks of age (WOA), respectively. Birds were provided water ad libitum and a 23:1 and 8:16-hr (light:dark) regimen at zero to 8 and 9 to 12 WOA, respectively. Birds were weighed weekly, and body weight gain, feed consumption, and feed conversions were determined. Data were analyzed using the General Linear Model (GLM) procedures of SAS (2002) with dietary lysine as treatment effect. Females responded better to diets containing 1.04 and 0.8% lysine from hatch to 4 and 5 to 12 WOA, respectively. Males responded better to diets containing 1.10 and 0.8% lysine at hatch to 4 WOA and 5 to 12 WOA, respectively. Therefore, we recommend that PGGF females and males be fed diets containing 1.04 and 1.10%, respectively, at hatch to 4 WOA and 0.80% lysine at 5 to 12 WOA. The diets should be supplied in phases.

Transcriptome Analysis and Expression of Selected Cationic Amino Acid Transporters in the Liver of Broiler Chicken Fed Diets with Varying Concentrations of Lysine

“…This study revealed adverse outcomes, such as decreases in the initial body weight, BWG, feed intake and feed efficiency, in chickens fed low lysine concentrations. This finding was consistent with that of Bhogoju et al [ 5 ], who reported that a low (80% NRC) concentration of lysine in diets decreased the BW and feed intake of broilers compared with the high (120% NRC) or NRC-recommended (100%) lysine concentration intake. Nasr and Kheiri [ 3 ] also reported that decreasing lysine concentration in feed from 1.14% to 0.8% decreased the body weight, BWG and feed intake of broilers.…”

“…This shows that growth is highly impaired when the concentrations of lysine are significantly reduced, hence causing the deaths of broiler chickens. Similar studies by Nasr and Kheiri [ 3 ], Bhogoju et al [ 5 ], Khwatenge et al [ 6 ], Kerr et al [ 40 ] and Corzo et al [ 41 ] have confirmed this effect of lysine on the growth performance of birds. The reduction in feed intake may likely be due to the birds experiencing satiety effects, hence reducing growth [ 4 , 11 ].…”

“…Therefore, an inadequate supply of lysine would lead to reduced growth and a reduction in antibody response and cell-mediated immunity in chickens [ 2 ]. Several studies have shown that an increase in supplementary lysine in feed increases the performance of growing birds [ 3 , 4 , 5 , 6 ]. In the case of broilers, it has been shown that there is a negative impact of imbalance and antagonism among amino acids on nutrient intake and utilization.…”

Effect of Dietary Lysine and Energy Levels on Apparent Nutrient, Nitrogen, and Amino Acids Digestibility of Local Muscovy Ducks

“…These results obtained are in agreement with the findings of Kamisoyama et al ( 2009); Widyaratne and Drew (2011) who indicated that higher dietary Lys resulted in increasing nutrient digestibility in ducks. It was due to in dietary low Lys levels, the ducks have a higher ratio of facing deficiency in diets, thus the ducks have to stimulate consumption and digestion to overcome the deficiency (Bhogoju et al, 2017). Besides, ducks fed dietary sufficient ME could accumulate the protein and utilize feed efficiently (Aftab, 2019).…”

“…The digestibilities of nonessential amino acids in the experiment were equivalent to the results ofKong and Adeola (2014) with the values of alanine, aspartic, glutamic, glycine, proline, serine and tyrosine which were 83,7; 83.0, 88.3, 78.2, 93.5, 89.9 and 91.6%, respectively. It was supported by the studies ofBhogoju et al (2017) who indicated that the supplementation of Lys in the diets enhanced the amino acid digestibility in poultry. The increase Lys in diet could increase the digestibility of other amino acids in the diet(Sharma et al, 2018).…”