VACCINATION DIRECT FROM THE HEIFER.

Cholecystectomy in a heifer

A 10-month-old female Japanese black heifer presenting with sudden loss of appetite was diagnosed with extreme extension of the gallbladder. Laparotomy reaching from the right part of the 10th rib to the right flank showed an extended gallbladder greater than 50 cm in diameter. Cholecystectomy was performed as follows: 1) complete removal of the gallbladder distally from the base; 2) flushing v...

The National Dairy Heifer Evaluation Project: a profile of heifer management practices in the United States.

The National Dairy Heifer Evaluation Project was a cooperative, USDA-sponsored project involving state agricultural departments, the Cooperative Extension Service, the National Agricultural Statistics Service, and the Animal and Plant Health Inspection Service. A series of retrospective and prospective descriptive surveys using a multiple list and area frame sampling technique were conducted. I...

Replacement Heifer Development

segment of the integrated management program in an efficient beef cow production system. The main objective should be to develop an adequate number of heifers to a point where they reach puberty and are cycling regularly at the start of the breeding season. In addition, they should have adequate pelvic area to deliver a reasonable size calf unassisted. Because of her increased nutritional needs...

the effect of traffic density on the accident externality from driving the case study of tehran

در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...

Extensive Heifer Development Systems