PSV-18 Effects of oats fodder and quantitative feed restriction on egg and meat quality of native Bangladeshi geese

Abstract

The present study was designed to assess the efficacy of Oats (Avena sativa) fodder as a supplementation along with concentrate feed for determining egg quality, meat color and texture, pH, drip loss, cooking loss, and water holding capacity (WHC) of Bangladeshi White and Gray geese varieties. A total of 60 adult geese from White and Grey varieties were reared in a semi-intensive production system in Bangladesh Livestock Research Institute, Savar. After 3 months of rearing, we collected freshly laid eggs for 4 weeks and 20 eggs /bird and 480 eggs for egg quality analysis. After that, those birds were slaughtered for meat quality analysis at 38 weeks of age. They were randomly divided into 4 groups with 3 replicates having 5 geese in each replication. Maize soya-based diet was considered as Basal diet and marked as T0- 200g concentrated feed, T1= 180 g Basal diet+ 138 g oats fodder, T2= 160 g Basal diet+ 276 g oats fodder, T3= 140 g Basal diet + 415 gm oats fodder daily. Egg quality was determined through the egg tester analyzer ultimate machine. A calibrated waterproof pH meter equipped with a spear tip probe was used to measure the pH values of the breast and thigh meat 24 hours of slaughter. Meat color was determined in triplicate using a Chromo meter CR-8, (3nh, China) and texture were determined using a texture analyzer (Tx-700, France). The data were statistically analyzed using SPSS software (23 version). Treatment had a remarkable effect on Albumen index, yolk CP % and breast meat cohesiveness value (p<.05). For egg quality parameter result showed that those traits were not significantly varied but tended to be higher in T2 group. Yolk and albumen CP% for T2 group was higher than other groups, but Breast meat cohesiveness tended to be lower in that group. However T2 group showed lower drip loss and cooking loss, higher WHC and also higher a* (redness) value but these parameters were not significantly affected by treatments. Supplementation of native Bangladeshi adult geese with 160 g concentrate feed+ 276 g oats fodder daily was found to be beneficial for improving egg and meat quality.