Results 31 to 40 of about 29,367 (283)

ASSOCIATION OF TRANSFERRIN POLYMORPHISM WITH REPRODUCTVE TRAITS OF GIR CATTLE [PDF]

Exploratory Animal and Medical Research, 2012
The present study on 28 known genotype of Gir cattle was carried out to investigate the association of transferrin polymorphism with different reproductive traits at the Department of Animal Genetic and Breeding, West Bengal University of Animal and ...
R. Guha, P.K. Senapati, S. Taraphder
doaj  

Milk Production of Buffaloes and Causes of Calf Mortality under a Semi-Intensive Production System in Egypt

Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 2001
Records of 71 buffaloes, raised under a semi-intensive production system in a university herd, collected from 1993 to 1999, were used to study the effect of some nongenetic factors on milk performance and causes of calf mortality.
M. Mourad, S. Rashwan
doaj   +1 more source

Fertility and fertility management in thirteen well-established organic dairy herds in the UK [PDF]

, 2002
This report was presented at the UK Organic Research 2002 Conference of the Colloquium of Organic Researchers (COR). Milk production and breeding records from thirteen organic dairy herds were collected between January 1997 and December 1999.
Hanks, James, Hovi, Malla, Roderick, Stephen, Taylor, Nick   +3 more
core  

Genetic Relationship of Body Energy and Blood Metabolites with Reproduction in Holstein Cows [PDF]

, 2008
Body condition score (BCS), energy content (EC), cumulative effective energy balance (CEEB), and blood serum concentrations of glucose, beta-hydroxybutyrate (BHBA), and nonesterified fatty acids ( NEFA) were measured throughout first lactation in 497 ...
A. Tsiaras, Banos, Banos, Berry, Brotherstone, Bruss, Butler, Clark, D. Zygoyiannis, de Vries, Dechow, Edmonson, Ferguson, Fox, G. Arsenos, G. Banos, G. Oikonomou, G.E. Valergakis, Gilmour, Hayhurst, Herdt, Holtenius, Lucy, Markusfeld, Moallem, Patton, Pryce, Pryce, Pryce, Rabiee, Reist, Reist, Stevenson, Suriyasathaporn, Veerkamp, Veerkamp, Wall, Walsh, Wathes, Westwood, Whitaker   +40 more
core   +1 more source

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source

Genetic evaluation of fertility using direct and correlated traits [PDF]

, 2003
Poor fertility has become a major reason for involuntary culling of dairy cows in the United Kingdom. Calving interval (CI) and body condition score (BCS) are recorded, heritable, genetically correlated with each other, and could be used to extend the ...
Berry, Brotherstone, Brotherstone, Calo, Coffey, Collard, Dechow, Dematawewa, E. Wall, Evans, G. Banos, Groen, Groeneveld, Harrison, Hickman, J.A. Woolliams, Jones, Kadarmideen, M.P. Coffey, Mrode, Neumaier, Olori, Pryce, Pryce, Pryce, Pryce, Roman, Roxström, Roxström, Royal, Royal, S. Brotherstone, Veerkamp, Veerkamp   +33 more
core   +1 more source

Integration of Nutrition and Organic Agriculture Framework in Managing Gastrointestinal Nematodes in Ruminants

Animal Research and One Health, EarlyView.
Gastrointestinal nematode infections damage the gastrointestinal epithelial tissues of ruminants, affecting nutrient utilization and overall production performance. This review outlines host‐gastrointestinal nematode interactions and discusses integrated control strategies, including nutritional supplementation, grazing management, vaccines, and ...
Wenxun Chen, Xiangfang Tang, Yimin Zhuang, Shengjun Zhao, Ying Ren, Xiaokang Lv   +5 more
wiley   +1 more source

PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF HOLSTEIN-FRIESIAN COWS IN PAKISTAN [PDF]

Pakistan Veterinary Journal, 2005
Productive and reproductive performance parameters of Holstein-Friesian cows kept at the Livestock Experiment Station, Bhunikey (Pattoki), District Kasur for the period from 1991 to 2000 were studied.
A. Sattar, R. H. Mirza, A. A. K. Niazi and M. Latif
doaj  

Seasonal Spatial Population Density Distribution Dynamics of Lynx and Ungulate Prey in Cold‐Temperate Coniferous Forests 寒温带针叶林猞猁和有蹄类猎物种群密度空间分布的季节性动态研究

Integrative Conservation, EarlyView.
This study used camera trap data from 6 years between 2016 and 2021 and generalized linear mixed models to explore the factors that influence the spatial density distribution of lynx and its prey populations in warm and cold seasons in Inner Mongolia Hanma National Nature Reserve, China.
Wentao Zhang, Heng Bao, Chenbing Chu, Hualin Du, Jian Tong, Penghui Zhai, Weihua Zhang, Yang Li, Kun Yang, Xuankai Liang, Nathan James Roberts, Guangshun Jiang   +11 more
wiley   +1 more source

Density‐dependent habitat selection in plains bison

The Journal of Wildlife Management, EarlyView.
Using GPS collar data, we tested whether habitat selection of plains bison in Grasslands National Park, Canada, was density dependent. Bison selected for areas of high vegetation productivity far from human activity when population density was low and increased use of lower productivity habitat closer to disturbance as density increased.
Michelle L. Sawatzky, Branden T. Neufeld, Stefano Liccioli, Philip D. McLoughlin   +3 more
wiley   +1 more source