Results 41 to 50 of about 87,193 (312)

Association between prepartum vaginal temperature changes and placenta expulsion time in Holstein dairy cattle

open access: yesThe Journal of Reproduction and Development
Retained placenta (RP) adversely affects postpartum productivity and reproduction in dairy cattle. Thus, methods to predict the occurrence of RP before calving would be desirable.
Miki SAKATANI   +3 more
doaj   +1 more source

Temporal trends in bulk milk antibodies to Salmonella, Neospora caninum, and Leptospira interrogans serovar hardjo in Irish dairy herds [PDF]

open access: yes, 2012
peer-reviewedBulk milk samples were collected from 309 Irish dairy herds at four time points during 2009 and tested for antibodies to Salmonella spp., N. caninum, and L. hardjo, three abortifacient agents in Irish dairy herds. Of the 312 study herds, 49%
O'Doherty, Eugene   +2 more
core   +1 more source

Empirical and theoretical considerations toward a model for caribou socioecology

open access: yesRangifer, 1986
The Delta and Yanert caribou (Rangifer tarandus granti) herds apparently maintained discrete calving areas from 1979 through 1983 (as determined by radio telemetry studies), even though substantial intermixing occurred during other seasons.
James L. Davis   +2 more
doaj   +1 more source

Drivers of Recurring Seasonal Cycle of Glacier Calving Styles and Patterns

open access: yesFrontiers in Earth Science, 2021
Calving is a crucial process for the mass loss of outlet glaciers draining the Greenland ice sheet. Moreover, due to a lack of observations, calving contributes to large uncertainties in current glacier flow models and projections.
Andrea Kneib-Walter   +4 more
doaj   +1 more source

Early post parturient changes in milk acute phase proteins [PDF]

open access: yes, 2016
The periparturient period is one of the most critical periods in the productive life of a dairy cow, and is the period when dairy cows are most susceptible to developing new intramammary infections (IMI) leading to mastitis.
Eckersall, Peter   +4 more
core   +1 more source

Climate Change Mitigation in the Dairy Sector: Uncovering Heterogeneity Through Eco‐Efficiency Clubs

open access: yesAgribusiness, EarlyView.
ABSTRACT Combining climate change goals with economic targets is crucial for the dairy sector, which is a significant contributor to agricultural greenhouse gas (GHG) emissions worldwide. In this paper, we assess economic and climate change implications of dairy production with panel data of Irish dairy farms from 2013 to 2021.
Doris Läpple   +2 more
wiley   +1 more source

The Effect of GnRH and PGF2α Administration on Estrus Onset and Dairy Buffaloes Conception Rate

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The aim of this study was to investigate the effect of GnRH and PGF2α administration on the manifestation of estrus and on the conception rate in Romanian buffalo dairy buffaloes.
Remus Chiorean   +2 more
doaj  

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman   +1 more
wiley   +1 more source

Distinguishing subaerial and submarine calving with underwater noise

open access: yesJournal of Glaciology, 2022
Iceberg calving is one of the major mechanisms of ice loss from tidewater glaciers and ice sheets, but obtaining accurate estimates of ice discharge that are both continuous and accurate is a challenging task.
Oskar Glowacki
doaj   +1 more source

Effects of daily herbage allowance and stage of lactation on the intake and performance of dairy cows in early summer [PDF]

open access: yes, 2007
peer-reviewedThis research was part-funded by European Union Structural Funds (EAGGF).The aim of this study was to investigate the relationship between daily herbage allowance (DHA) and the performance of dairy cows at two stages of lactation.
Maher, J., Rath, Myles V, Stakelum, G.
core  

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