Results 71 to 80 of about 29,367 (283)

Environmental Factors Affecting Performance Traits of Sahiwal Cattle in Pakistan [PDF]

Pakistan Veterinary Journal, 2012
Data on 23925 lactations of 5897 Sahiwal cows in five Government herds of Punjab (Pakistan) viz. Livestock Experiment Station (LES) Allahdad, LES Bahadurnagar, LES Fazalpur, LES Jahangirabad and LES Khizerabad (1964-2004) were collected to document the ...
Z. Rehman*§ and M. S. Khan
doaj  

Milk production and survival of spring-calving carryover cows in New Zealand dairy herds : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Animal Science at Massey University, Manawatu, New Zealand [PDF]

, 2017
Non-pregnant cows are generally culled from dairy herds and replaced with two-year-old heifers. Alternatively, non-pregnant cows can be dried-off at the end of lactation, retained for one year (carried over), before being mated and returned to a milking ...
Gardner, Rachel
core  

Phenological responses to climate change: advancing mating and calving in wild and semi‐captive Caspian red deer

Wildlife Biology, EarlyView.
Species respond to climate change through phenological and spatial shifts. Herbivorous mammals, in particular, are vulnerable due to their direct dependence on seasonal vegetation and the potential misalignment between their reproductive cycles and shifting food availability.
Farid Salmanpour, Zahra Shakoori, Frank van Langevelde, Bahram H. Kiabi, Roumina Sayahnia, Faraham Ahmadzadeh   +5 more
wiley   +1 more source

Insight into the reproductive performance of Murrah buffaloes based on RNA sequencing analysis

Frontiers in Animal Science
Late sexual maturity and prolonged postpartum ovarian acyclicity are responsible for longer non-productive periods, thereby compromising the economic viability of buffalo farming.
Poonam Sikka, I. Singh, K. P. Singh, Jerome Andonissamy, Dwijesh Chandra Mishra, Krishna Kumar Chaturvedi   +5 more
doaj   +1 more source

Micro‐habitat selection by boreal woodland caribou improves access to food

Wildlife Biology, EarlyView.
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson, Philip A. Wiebe, Arthur R. Rodgers, Douglas Reid, James A. Baker, Brent R. Patterson, Eric McNeill, Romain Dejeante, John M. Fryxell   +8 more
wiley   +1 more source

DNA metabarcoding reveals wolf dietary patterns in the northern Alps and Jura Mountains

Wildlife Biology, EarlyView.
Understanding predator–prey interactions is crucial for wildlife management and human–wildlife coexistence, particularly in multi‐use landscapes such as western Europe. As wolves Canis lupus recolonize their former habitats, knowledge of their diet is essential for conservation, management and public acceptance.
Florin Kunz, Eduard Mas‐Carrió, Philippine Surer, Fridolin Zimmermann, Philippe Christe, Luca Fumagalli, Nina Gerber   +6 more
wiley   +1 more source

Characterization of dystocia in a herd of Holstein dairy cows in Brazil

Ciência Animal Brasileira, 2022
The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows.
Jean Carlos Lourenço, Paulo Cesar Ossani, Márcia Saladini Viera Salles, Ferenc Istvan Bánkuti , Rodrigo de Almeida , Diogo Francisco Rossoni, Jesús Alberto Cardozo de Osorio, Geraldo Tadeu dos Santos   +7 more
doaj  

Additive genetic, non-additive genetic and permanent environmental effects for female reproductive performance in seasonal calving dairy females

Irish Journal of Agricultural and Food Research, 2016
Excellent reproductive performance (i.e. 365-day calving interval) is paramount to herd profit in seasonal-calving dairy systems. Reproductive targets are currently not being achieved in Irish dairy herds.
Kelleher M.M., Buckley F., Evans R.D., Berry D.P.   +3 more
doaj   +1 more source

Associations between the K232A polymorphism in the diacylglycerol-O-transferase 1 (DGAT1) gene and performance in Irish Holstein-Friesian dairy cattle [PDF]

, 2010
peer-reviewedSelection based on genetic polymorphisms requires accurate quantification of the effect or association of the polymorphisms with all traits of economic importance. The objective of this study was to estimate, using progeny performance data
Berry, Donagh, Howard, Dawn J., Kearney, J.F., McCabe, Matthew, O'Boyle, Padraig, Waters, Sinead M.   +5 more
core  

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

Wildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund, Torbjørn Ergon, Simon Filhol, Atle Mysterud   +3 more
wiley   +1 more source