Evaluation by Weight Change Rate of Dairy Herd Condition

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation by weight change rate of dairy herd condition.

The purpose of this study was to clarify whether weight change rate (WCR) is useful in evaluating herd health. Five herds (A, B, C, D, and E) were examined monthly for approximately 1 year to measure both WCR and BCS. WCR was calculated using the following equation: WCR (%) = (body weight of current month-body weight of the preceding month)/body weight of current month x 100. In addition, blood...

متن کامل

Low body condition predisposes cattle to lameness: An 8-year study of one dairy herd.

Lameness in dairy cows is a multifactorial and progressive disease with complex interactions between risk factors contributing to its occurrence. Detailed records were obtained from one United Kingdom dairy herd over an 8-yr period. Weekly locomotion scores were used to classify cows as not lame (score 1 to 2), mildly lame (score 3) and severely lame (score 4 to 5). These outcomes were used to ...

متن کامل

The frequency of photosensitization in a dairy cattle herd infected by Leptospires

Leptospirosis is a bacterial zoonotic disease, which can induce hepatic lesions. Photosensitization (PS)maybe is the result of accumulation of photodynamic agents in unpigmented area of the skin exposed tosunlight which occurred due to hepatic lesions. An outbreak of leptospirosis was occurred in a dairy cattleherd complex with 760 dairy milking cows in March (1990). Totally, 412 cows (54.21%) ...

متن کامل

Evaluation of Bovine Teat Condition in Commercial Dairy Herds: 2

Table 1 Teat conditions observable according to the cause of the problem. Machine induced Environmental Infectious Discoloration Chapping Pseudocowpox Oedema Mud sores Herpes mammillitis Congestion Suckling damage Cowpox Wedging Fly bites Papilloma Ringing Other abrasions and cuts Foot and Mouth Disease Hemorrhaging petechia Weather damage Vesicular Stomatitis Hemorrhaging larger Allergic react...

متن کامل

ذخیره 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 Veterinary Medical Science

سال: 2006

ISSN: 0916-7250,1347-7439

DOI: 10.1292/jvms.68.935