نتایج جستجو برای: dairy production

تعداد نتایج: 641117  

Journal: :Journal of dairy science 2015
Louise Hedlund Hanne Løvlie

The objective of this study was to investigate relationships between animal personality (i.e., consistency in behavioral responses, also called temperament) and milk production in dairy cows. There has recently been a growing research interest in animal personality, which in production animals can have an important impact on welfare and production potential. Despite this, the relationship betwe...

2018

Growing consumption of dairy and other livestock products is bringing important nutritional benefits to large segments of the population of developing countries, although many millions of people in developing countries are still not able to afford better-quality diets owing to the higher cost. However, the rapid growth in production and consumption of livestock products also presents risks to h...

2009
Lorraine M. Sordillo

Mastitis is a significant disease of adult dairy cattle affecting up to 40 percent of cows within a herd at any given time. Recent surveys show that udder health problems are consistently the most frequent cause of morbidity with the US dairy cattle population (Table 1). The U.S. dairy industry loses an estimated $2 billion every year due to mastitis, with reduced milk production accounting for...

2016
Shabir Ahmad Lone Shailesh Kumar Gupta Narendra Kumar Kuladip Prakash Bilal Ahmad Ganaie Sunil Kumar Prakash Shinde B Ahmad Ganaie

RECENT TECHNOLOGIES FOR PREGNANCY DIAGNOSIS IN SHEEP AND GOAT: AN OVERVIEW Shabir Ahmad Lone 1* , Shailesh Kumar Gupta 2 , Narendra Kumar 2 , Kuladip Prakash Shinde 2 , Bilal Ahmad Ganaie 1 , Haneef Ahmad Rather 1 and Sunil Kumar 3 1 PhD Scholar, Animal Reproduction Gynaecology and obstetrics, ICAR-National Dairy Research Institute, Karnal-132001, Haryana, INDIA 2 PhD Scholar, Livestock product...

2007
Jud Heinrichs Geoff Zanton

Raising dairy heifers from birth to calving has been found to comprise the second largest expense on the dairy farm towards the production of milk (Heinrichs, 1993) and therefore require a reasonably high level of attention on a commercial dairy farm. The focus of this paper will be feedstuffs, in particular limiting forages for the development of the rumen in the neonate, as well as a possible...

2017
Pratik Ramesh Wankhade A. Manimaran A. Kumaresan S. Jeyakumar K. P. Ramesha V. Sejian D. Rajendran Minu Rachel Varghese

Smooth transition from pregnancy to lactation is important for high productive and reproductive performance during later postpartum period in dairy animals. On the other hand, the poor transition often leads to huge economic loss to dairy farmers due to compromised production and reproduction. Therefore, understanding the causes and consequence of metabolic changes during the transition period ...

2012
Narongsak Chaiyabutr

The major problems for the dairy practices in the tropical country are low milk yield and short lactation period of either pure exotic or crossbred dairy cattle. Many factors affect milk production in dairy cattle in tropical areas including high environmental temperature and humidity, lower genetic potential for milk production in indigenous cattle and inadequate supply of food during the dry ...

Journal: :Journal of medical entomology 2012
David B Taylor Roger D Moon Darrell R Mark

Stable flies, Stomoxys calcitrans (L.), are among the most damaging arthropod pests of cattle worldwide. The last estimate of their economic impact on United States cattle production was published 20 yr ago and placed losses at $608 million. Subsequently, several studies of effects of stable flies on beef cattle weight gain and feed efficiency have been published, and stable flies have become i...

2001
Pamela Ruegg

Introduction Mastitis is the most frequent and costly disease of dairy cattle. Losses due to mastitis can be attributed to both subclinical and clinical disease. Clinical mastitis losses are generally readily apparent and consist of discarded milk, transient reductions in milk yield and premature culling (Fetrow, 2000). Subclinical mastitis is considered the most economically important type of ...

2017
Nora M. Bello Juan P. Steibel Robert J. Tempelman

Two of the most important broad classifications of phenotypes for successful dairy production are milk yield and fertility. The nature of the relationship between milk production and reproductive performance of dairy cows is uncertain due to conflicting results reported in many studies. A common deficiency in many such studies is an underappreciation of the dual dimension of the production-repr...

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