نتایج جستجو برای: calf

تعداد نتایج: 13842  

2011
Bryan A. Reiling

Commercial cow-calf producers commonly use the term “percent calf crop,” but what does it mean? Does percent calf crop represent the number of calves born relative to the number of cows bred, or perhaps it is the number of calves born relative to the number of cows exposed to a bull? Some might calculate percent calf crop as the number of calves weaned compared to the number of calves born, or ...

2017
Weiwei Zhang Zhen Yang Yixin Niu Xiaoyong Li Lingfei Zhu Shuai Lu Hongmei Zhang Jiangao Fan Guang Ning Li Qin Qing Su

BACKGROUND The feature of nonalcoholic fatty liver disease (NAFLD) is pathological excessive liver lipid accumulation of subjects who without history of alcohol abuse. Calf circumference is a proxy for lower-body fat and screening method for the identification of subjects with acatastatic lipid accumulation. The objective of this study was to examine the association between calf circumference a...

2014
Min Su Jung Hii Sun Jeong Byeong Ho Lee Joo Hyun Kim Seong Hoon Park Duk Kyun Ahn In Suck Suh

Calves can be easily seen in daily life and are an important part of the body contour. Asymmetric calves can develop from unbalanced distribution and deposition of fat and muscles between the legs. Calf asymmetry may be due to congenital factors, disease (e.g., poliomyelitis, cerebral palsy, or infection), spinal cord injury, or the effects of surgical treatment and may have severe adverse psyc...

Journal: :American journal of physiology. Heart and circulatory physiology 2004
Julian M Stewart Marvin S Medow Leslie D Montgomery Kenneth McLeod

Standing translocates thoracic blood volume into the dependent body. The skeletal muscle pump participates in preventing orthostatic intolerance by enhancing venous return. We investigated the hypothesis that skeletal muscle pump function is impaired in postural tachycardia (POTS) associated with low calf blood flow (low-flow POTS) and depends in general on muscle blood flow. We compared 12 sub...

Journal: :Journal of animal science 2004
R N Funston G H Deutscher

A 3-yr study was conducted with spring-born heifers (n = 240) to determine the effects of developing heifers to either 55 or 60% of mature BW at breeding on reproduction and calf production responses. A concurrent study was also conducted with summer-born heifers (n = 146) to examine effects of breeding heifers with the mature cow herd or 1 mo earlier on reproduction and calf production variabl...

Journal: :Ukrainian Journal of Ecology 2021

In beef cattle breeding, unlike dairy farming, the only product is a calf. Therefore, industry's competitiveness directly depends on annual retention from each cow and heifer calf, preservation of calves, high growth energy young animal throughout rearing period. These indicators are influenced by many factors, one which breeding technology. The colostrum period most critical; newborn calves th...

Journal: :Journal of animal science 2007
J Bartosová-Víchová L Bartos L Svecová

The opening of the preorbital gland of red deer (Cervus elaphus) calves has been previously associated with feeding and satiety. However, it has been suggested to be most likely affected by some other factor or factors, possibly by excitement of the calf. If so, a calf should open its preorbital gland while being exposed to any stressful procedure. The hypothesis was tested that the preorbital ...

Journal: :British journal of sports medicine 2017
Brady Green Tania Pizzari

OBJECTIVE To systematically review the literature to identify risk factors for calf strain injury, and to direct future research into calf muscle injuries. DESIGN Systematic review DATA SOURCES: Database searches conducted for Medline, CINAHL, EMBASE, AMED, AUSPORT, SportDiscus, PEDro and Cochrane Library. Manual reference checks, ahead of press searches, citation tracking. From inception to ...

2015
Michael A. Ballou

Dairy calves are extremely susceptible to gastro-intestinal disease during the pre-weaned period. The risk for enteric disease decreases as the calf ages; therefore, it is important to break the pre-weaned period up into at least two distinct phases that likely need to be managed differently, early life (first couple weeks of life) and the remaining time the calf is fed milk or milk replacer. W...

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