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Changes in blood components and organ weights in growing White Leghorn chicks
Insights
This study tracked White Leghorn chicks for 20 weeks, observing significant increases in body weight, organ weights, and GOT levels with age. Alkaline phosphatase (ALP) levels, however, decreased over time.
Area of Science:
- Animal Science
- Physiology
- Biochemistry
Background:
- Understanding growth and physiological changes in poultry is crucial for optimizing production and health.
- White Leghorn chicks are a standard model for avian growth studies.
Purpose of the Study:
- To document age-related changes in body weight, organ weights, and plasma components in White Leghorn chicks.
- To identify key physiological indicators of growth and development during the first 20 weeks of life.
Main Methods:
- Longitudinal study of White Leghorn chicks over 20 weeks.
- Measurement of body weight, organ weights (liver, brain, heart, pancreas, kidneys, adrenals, thyroid), intestinal dimensions, and long bone lengths.
- Analysis of plasma components including GOT, ALP, total cholesterol, uric acid, ACP, hemoglobin, and hematocrit.
Main Results:
- Body weight and weights of liver, brain, heart, pancreas, kidneys, adrenals, and thyroid glands increased with age.
- Intestinal weight, length, and femur/tibia length also showed age-related increases.
- Serum Glutamic Oxaloacetic Transaminase (GOT) levels increased, while Alkaline Phosphatase (ALP) levels decreased with age.
- No significant age-related changes were observed in total cholesterol, uric acid, ACP, hemoglobin, or hematocrit.
Conclusions:
- Significant physiological and morphological changes occur in White Leghorn chicks during the first 20 weeks of growth.
- GOT and ALP levels serve as sensitive biochemical markers for monitoring growth and development in young chickens.
- Certain plasma components remain stable, indicating developmental independence from age within this period.
Abstract:
The changes in the body weight and organ weight of growing White Leghorn chicks were studied during the first 20 weeks of life. Changes in plasma components were simultaneously examined. The body weight and the weight of the liver, brain, heart, pancreas, kidneys, adrenals, thyroid glands, the intestinal weight and length, the length of the femur and tibia and the GOT levels increased with age. ALP levels decreased with age. There were no age-related changes in total cholesterol, uric acid, ACP, hemoglobin and hematocrit levels.