Characteristics of mammary secretions from Holstein cows at approximately 10 days before parturition: with or without intramammary infection
نویسندگان
چکیده
منابع مشابه
Prevalence and antimicrobial susceptibilities of coagulasenegative Staphylococci isolated from mammary secretions in pregnant Holstein heifers
Mammary secretions of 913 quarters from 229 pregnant Holstein heifers were obtained aseptically to determine the prevalence of coagulase-negative Staphylococci isolated during periparturient period. Quarter samples were collected 14 to 10 days before expected parturition. Analysis of culture data indicated that 78.5% (717/913) of samples were negative, 20.5% (187/913) contained coagulase-negati...
متن کاملRole of xanthine oxidase, lactoperoxidase, and NO in the innate immune system of mammary secretion during active involution in dairy cows: manipulation with casein hydrolyzates.
The aims of this study were to test whether xanthine oxidase, lactoperoxidase, and NO are components of the innate immune system of mammary secretion during active involution in dairy cows, and whether the innate immune system is activated by casein hydrolysates. Our laboratory has shown recently that infusion of CNH into mammary glands induced involution and was associated with earlier increas...
متن کاملAmoxicillin Resides in Milk of Holstein Cows With Double or Triple Intramammary Administration of Amoxicillin-Potassium Clavulanate
The aim of this study was to determine differences in residue elimination of amoxicillin (AMX) in cow ́s milk, after intramammary administration of a pharmaceutical preparation of AMX plus potassium clavulanate (CLV), either in healthy or in spontaneous cases of clinical mastitis, and following label instructions or administering the preparation in an extra-label manner. Twelve lactating healthy...
متن کاملprevalence and antimicrobial susceptibilities of coagulasenegative staphylococci isolated from mammary secretions in pregnant holstein heifers
mammary secretions of 913 quarters from 229 pregnant holstein heifers were obtained aseptically to determine the prevalence of coagulase-negative staphylococci isolated during periparturient period. quarter samples were collected 14 to 10 days before expected parturition. analysis of culture data indicated that 78.5% (717/913) of samples were negative, 20.5% (187/913) contained coagulase-negati...
متن کاملEnergy balance and lactation response in Holstein cows supplemented with cottonseed with or without calcium soap.
Holstein cows (n = 58, 21 primiparous), fed corn and wilted grass silages (63:37, DM basis) for free choice consumption, were assigned to control concentrate or supplemented concentrate during wk 1 to 16 postpartum with linted whole cottonseed (15% of projected DMI) alone or with Megalac (.54 kg/d). Our objective was to examine the effects of fatty acids on energy and N balances, total tract di...
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: Journal of Applied Animal Research
سال: 2017
ISSN: 0971-2119,0974-1844
DOI: 10.1080/09712119.2017.1368524