Transcription of Chapter 3 - CHICKEN ANATOMY AND PHYSIOLOGY
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Chapter 3 - CHICKEN ANATOMY AND PHYSIOLOGY
Chapter 3 - CHICKEN ANATOMY AND PHYSIOLOGY Contents: Digestive system Respiratory system Skeletal system Muscle system Reproductive system - female Reproductive system - male Circulatory system Nervous system Excretory system Immune system An overview of the internal organs of the female CHICKEN is shown in Figure A number of different systems are represented and they will be discussed individually. Figure - The internal organs of the female CHICKEN A. Digestive system The digestive system uses the nutrients in consumed feed for the maintenance of all the other systems of the CHICKEN s body. Ingested food is broken down to its basic components by mechanical and chemical means and these basic components are then absorbed and utilized throughout the body. A knowledge of the digestive process assists in understanding the nutritive requirements of chickens.
diverticulum marks the end of the jejunum and the start of the ileum. Just prior to hatch, the yolk sac, which had been supplying nutrition during embryo development, is drawn into the navel cavity. The residual tiny sac is the merkels diverticulum. The yolk sac supplies feed and water to the newly hatched chick and
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