Heart Rate of Day-Old S. C. White Leghorn Chicks
نویسندگان
چکیده
منابع مشابه
Relationship between body weight and beak characteristics in one-day-old white Leghorn chicks: its implications for beak trimming.
Beak trimming is a routine practice used in laying hens to prevent feather pecking and cannibalism. The effect of beak trimming on bird well-being depends on multiple factors, including the amount of beak that is trimmed and the quality of the procedure. The aim of this work was to determine if a relationship existed between BW and beak characteristics in 1-d-old chicks, with a future aim to de...
متن کاملMetabolism of dehydroretinyl ester in White Leghorn chicks.
1. The metabolism of dehydroretinyl ester has been studied in vitamin-A-deficient white leghorn chicks. Dehydroretinyl ester was metabolized to 3-hydroxyretinol diester, 3-hydroxyanhydroretinol and rehydrovitamin A2 which were isolated from the intestines and livers of chicks. 2. The metabolism of 3-hydroxyretinol diester and 3-hydroxyanhydroretinol, which were immediate metabolites of dehydror...
متن کاملMuscle protein synthesis rate is altered in response to a single injection of insulin-like growth factor-I in seven-day-old Leghorn chicks.
To determine if a single injection of insulin-like growth factor-I (IGF-I) can affect muscle protein synthesis in chickens, 7-d-old male Single Comb White Leghorn chicks were injected s.c. with physiological saline (control) or 35 microg of recombinant human IGF-I. After 2 h 30 min, or 6, 12, or 24 h the chicks were injected with 3H-phenylalanine and killed, and the fractional synthesis rate (K...
متن کاملNervous control of heart rate during excitement in the adult White Leghorn cock.
TUMMONS,JOHN L., AND PAUL D. STURKIE. Nervous control of heart rate during excitement in the adult White Leghorn cock. Am. J. Physiol. 216(6): 1437-1440. 1969.-The control of heart rate by the sympathetics and parasympathetics during excitement has been studied in the adult White Leghorn cock. The data presented in this study demonstrate that at the basal resting heart rate (BRHR) of 280-290 be...
متن کاملVirulence Determination of Three Iranian Isolates of Salmonella Enteritidis in Day-Old Layer Chicks
BACKGROUND: Salmonella Enteritidis (SE) infection in poultry is one of the most important concerns in poultry. Virulence and pathogenicity of the SE isolates from Iran have not been well studied so far. OBJECTIVES: In the present study, three Salmonella Enteritidis (SE) isolates were compared with a standard SE strain (PT21) for virulenc...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Poultry Science
سال: 1962
ISSN: 0032-5791
DOI: 10.3382/ps.0411960