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Full-Text Articles in Animal Sciences
Tb89: Motor And Elective Activity Of The Duodenum Of Broilers, C. Mba-Mezoui, F. H. Bird, C. B. Chawan
Tb89: Motor And Elective Activity Of The Duodenum Of Broilers, C. Mba-Mezoui, F. H. Bird, C. B. Chawan
Technical Bulletins
Recordings of pressure changes and electrical activity from the proximal small intestine of seven to eight-week-old unanesthetized chickens were made with chronically implanted transducers. The recordings were used to quantitate and determine the relationships among basic electric rhythm (BER), spike potentials (SP), and intestinal contractions (IC) of the duodenum. The omnipresence of the BER was demonstrated. SP were recorded whenever IC were detected. SP numbers and amplitudes were directly related to the strength of IC. Acetylcholine caused a general increase in the number and amplitude of both SP and IC. Epinephrine completely abolished both SP and IC. The results suggest …
Tb8: Enzyme Levels In Birds, Lois S. Mcdaniel, Helen A. Dempsey, Harold L. Chute
Tb8: Enzyme Levels In Birds, Lois S. Mcdaniel, Helen A. Dempsey, Harold L. Chute
Technical Bulletins
This technical bulletin describes a research project relating to enzymes and chickens during health and disease. This project was started in 1957, and with the aid of a National Institutes of Health grant #C-4957 in 1959 the work was accelerated. This bulletin covers some of the work that has not been published and at also summarizes some of the literature relating to enzyme activity levels in birds.
Tb9: Newcastle Disease Virus Activity And Volume Of Amniotic Allantoic Fluid In Chicken Embryos From Flocks With Different Vaccination Histories, Harold L. Chute, D. C. O'Meara, D. B. Reardon, H. T. Wheelwright
Tb9: Newcastle Disease Virus Activity And Volume Of Amniotic Allantoic Fluid In Chicken Embryos From Flocks With Different Vaccination Histories, Harold L. Chute, D. C. O'Meara, D. B. Reardon, H. T. Wheelwright
Technical Bulletins
Breeding hens of similar age, 9 to 11 months old, were selected from four flocks, each with a different vaccination history. One flock received no vaccinations, the second received spray and wing web Newcastle disease (ND) vaccine, the third was given three ND dust vaccinations, and the fourth received two dead ND viral vaccinations.