Comparative Bioefficacy of Lysine from l-Lysine Hydrochloride or l-Lysine Sulfate in Basal Diets Containing Graded Levels of Canola Meal for Female Broiler Chickens

Abstract

A broiler growth assay was conducted to compare the efficacy of l-lysine HCl and l-lysine sulfate at a graded addition of canola meal (CM). A total of 1,440 1-d-old female Hubbard broiler chicks were allotted randomly to 6 dietary treatments each in 4 replicates of 60 birds per pen. The 2 lysine sources (l-lysine HCl and l-lysine sulfate) and the 3 CM levels (10, 15, and 20%) were used in 2 x 3 factorial arrangement in isonitrogenous (19% CP) and equicaloric (2,700 kcal of ME/kg) diets containing 0.96% digestible lysine. The experiment lasted for 42 d, and a single mash diet was used throughout the experiment. The feed intake during the starter phase (1 to 28 d) decreased linearly as the dietary CM level increased with diets containing l-lysine HCl, whereas feed intake increased linearly with increasing dietary CM level with that of lysine sulfate. Gizzard weight as percentage of carcass weight increased linearly (P < or = 0.016) as dietary CM level increased. No significant effect of lysine sources or CM was observed on body weight gain, feed:gain, mortality, carcass weight, breast and thigh yield, and abdominal fat. In conclusion, l-lysine HCl can be replaced with l-lysine sulfate for broiler diets, and CM can be used as up to 20% of the starter (1 to 28 d) and finisher (29 to 42 d) diets without having any adverse effects of broiler performance.

Growth Performance, Organ Weights and, Blood Parameters of Broilers Fed Diets Containing Graded Levels of Dietary Canola Meal and Supplemental Copper

“…In contrast to present results, Ahmad et al (2007) reported that CM could be used at up to 20% of diets fed for 1 to 28 d without any adverse effects of broiler performance. The difference between results from the current study and those of Ahmad et al (2007) could partly be attributed to difference diet ingredients and composition of gut microorganism.…”

“…The difference between results from the current study and those of Ahmad et al (2007) could partly be attributed to difference diet ingredients and composition of gut microorganism. Roland et al (1996) concluded that severity of toxicity of dietary GLS are partly dependent on the composition of the diets in which the CM is included.…”

“…Despite of the Ahmad et al (2007) and Mushtaq et al (2007) who reported, diets containing up to 200 g/kg of low GLS rapeseed meal had no adverse effect on breast meat yield, when CM was included in the diets at 20% breast meat yield was significantly reduced in the current study. However, similar results have been reported by Khajali et al (2011) andIzadnia et al (2010), who observed decreased breast yield in broilers due to dietary CM.…”

Exogenous carbohydrases do not improve the physiological and meat quality parameters of female Japanese quail fed canola-based diets

“…Secondary plant compounds such as glucosinolates, erucic acid, phytic acid, non-starch polysaccharides (NSP), and high fibre content limit the value of canola as a major protein source in quail feed formulation. Several scholars have reported that canola is a potential protein source, but inclusion levels greater than 250 g/kg can cause detrimental effects and reduce performance in birds (Naseem et al, 2006;Ahmad et al, 2007;Min et al, 2011). A recent report by indicated that CM could be used to replace 12.5% soybean in female Japanese quail diets without compromising growth performance, health, and quality of meat.…”

<b>Carcass yield, sensory analysis and meat quality of broilers fed canola meal

“…Although the canola meal has protein content ranging from 34 to 38%, it has an amino acid profile similar to that of soybean meal. Studies on canola meal between 150 and 200 g kg -1 in the diet for broilers reported no adverse effects on the performance (Ahmad, Mirza, & Ahmad, 2007). The replacement of soybean meal with canola meal could reduce the cost of animal feed for the farmer, if there is no impact on the performance and physical characteristics of meat.…”