Effect of Dietary Inclusion of Soybean Hulls in Basal Diet on Digesta Viscosity, Fecal Consistency, Hematology, Serum Biochemistry, and Intestinal Morphometric Parameters in the Laying Hens During Peak Egg Production Stages
Effect of Dietary Inclusion of Soybean Hulls in Basal Diet on Digesta Viscosity, Fecal Consistency, Hematology, Serum Biochemistry, and Intestinal Morphometric Parameters in the Laying Hens During Peak Egg Production Stages
Muhammad Shuaib1*, Abdul Hafeez1, Woo Kyun Kim2, Aamir Khan3 and Abubakar Sufyan4
ABSTRACT
This study aimed to investigate the effect of soybean hull (HS) in the diet of laying hens on digesta viscosity, fecal consistency, hematology, serum biochemistry, and intestinal morphometrics during peak egg production periods. A total of 160, 28-weeks old golden misri (brown) laying hens were distributed in the following groups. A basal diet of the corn-soybean meal was formulated as a control group and a soybean meal in the basal diet was replaced with 3%SH, 6%SH, and 9% SH respectively. The results of the feces proximate analysis showed significantly higher crude protein during phases 1 and 2, while crude fiber during phase1 and 3 for the SH treatment groups. The crude fat had a significantly higher value for the control group than all SH treatment groups during all (three) phases. The ash amount was significantly higher in the 3 and 6% SH groups during phase 1 while 6% and 9% SH groups during phase 3 than in all other groups. The control group had (P<0.05) lower gut contents viscosity during all phases than the SH treatment groups. During all phases, the feces consistency was normal (dry and cone farming) for the control and 3% SH groups while loose droppings but no free water for the 6% and 9%SH treatment groups. The hematological and serum biochemistry parameters were not affected during all phases. The control group had significantly higher duodenum villus height and crypt depth during all phases while ileum villus height was significantly lower in the 9%SH treatment group than in all other groups. In conclusion, the dietary supplementations of soybean hulls increased the digesta viscosity, and have no adverse effect on fecal consistency, hematological and serum biochemistry, and intestinal morphometric parameters in the laying hens during the peak egg production period.
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