Effects of replacing soybean meal with cottonseed meal on growth performance, carcass trait, intestinal development and intestinal microbiota of broiler chickens.

This experiment was conducted to evaluate the effects of replacing soybean meal (SBM) with cottonseed meal (CSM) on growth performance, carcass trait, intestinal development and intestinal microbiota of broilers. A total of 792 one-day-old male Ross 308 broiler chickens were randomly allotted to three treatment groups, with 8 replicates per group and 33 birds per replicate. The control birds were administered a diet consisting primarily of corn and soybean meal.

[Comparative study on morphology and development of two species of Raillietina from chicken].

Objective: To compare the morphological features and the development of Raillietina echinobothrida and R. tetragonal from chicken.

Methods: The parasites were collected from chicken digestive tract, and 3-5 fresh scolex fragments were separated.