Results 101 to 110 of about 46,786 (294)

PHENOTYPIC AND GENETIC CORRELATIONS BETWEEN FIRST LACTATION MILK YIELD AND SOME PERFORMANCE TRAITS IN SAHIWAL CATTLE [PDF]

, 2004
Data on 8948 pedigree, breeding and performance records of a purebred herd of Sahiwal cattle maintained at the Livestock Experiment Station Jahangirabad district Khanewal (Pakistan) during the period 1939-98 were analysed.
K. Javed, M. Abdullah1 , M. Akhtar2 and M. Afzal3
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

A review of high nature value farming systems in Europe: Biodiversity, ecosystem services, drivers, innovations and future prospects

People and Nature, EarlyView.
Abstract Farming systems of high natural and cultural value represent approximately 30% of farmlands in the European Union and are associated with a high species and habitat diversity and/or the presence of species of European conservation concern. This study aims to synthesize the existing knowledge on the assessment of biodiversity and ecosystem ...
Elsa Varela, Marion Jay, Lukas Flinzberger, Chaima Mobarak, Tobias Plieninger   +4 more
wiley   +1 more source

Analysis of milk production, age at first calving, calving interval and economic parameters in dairy cattle management

Mljekarstvo, 2017
The objective of this study was to evaluate main indicators of milk production on total 60 commercial dairy herds from the Czech Republic during a 9-yr period (2006-2014).
L. Krpalkova
semanticscholar   +1 more source

Crossbred dairy cattle productivity in Arsi region, Ethiopia [PDF]

, 2011
Presents results of analyses carried out on a range of performance traits and productivity estimates for indigenous Arsi & Zebu cattle and their crosses with Jersey & Friesian, maintained for milk production at Asela station & on smallholder farms in the
Anderson, F.M., Durkin, J.W., Kiwuwa, G.H., Trail, J.C.M., Worku, G., Yousef, M.K.   +5 more
core  

Programmed unmanned aerial vehicles show great potential for monitoring marine megafauna in specific areas of interest

Remote Sensing in Ecology and Conservation, EarlyView.
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann, Valdemar Palmqvist, Johanna Stedt   +2 more
wiley   +1 more source

A combination of nutrition and genetics is able to reduce age at puberty in Nelore heifers to below 18 months

Animal, 2018
Nelore heifers usually begin their reproductive life at ⩾24 months of age mainly due to suboptimal nutritional conditions and genetics. This study aimed to determine the effect of expected progeny difference (EPD) for age at first calving and average ...
M.V.C. Ferraz, Jr, A.V. Pires, M.H. Santos, R.G. Silva, G.B. Oliveira, D.M. Polizel, M.V. Biehl, R. Sartori, G.P. Nogueira   +8 more
doaj   +1 more source

Genetic analysis of reproductive performance of Frieswal cattle at Military Farm, Ambala [PDF]

Veterinary World, 2015
Aim: This study was carried out to investigate the genetic analysis of reproductive performance of Frieswal cattle at Military Farm, Ambala. Materials and Methods: A total number of 3005 lactation records of 1147 Frieswal cows over a period of 15 years ...
Jagdeep Kumar, Y. P. Singh, Sushil Kumar, Rajbir Singh, Ravinder Kumar , Pradeep Kumar   +5 more
doaj   +1 more source

Genome-wide association study for lactation characteristics, milk yield and age at first calving in a Thai multibreed dairy cattle population

, 2017
A genome-wide association study was performed for milk yield per lactation (MY), initial yield (IY), peak yield (PY), persistency (PS) and age at first calving (AFC) in a Thai multibreed dairy cattle population. The dataset contained 1305 first-lactation
Pimchanok Yodklaew, S. Koonawootrittriron, M. Elzo, T. Suwanasopee, T. Laodim   +4 more
semanticscholar   +1 more source

Effect of butorphanol in combination with xylazine during castration of calves: A randomised trial under field conditions

Veterinary Record, EarlyView.
Abstract Background In horses, cats and dogs, the opioid butorphanol has been proven effective in management of visceral pain and for peri‐ and postoperative pain relief. The aim of this study was to evaluate physiological responses and indicators of noxious stimuli when adding butorphanol to xylazine for sedation of bull calves during surgical ...
Axel Sannö, Lovisa Snygg, Maja Wiklund, Görel Nyman   +3 more
wiley   +1 more source