Results 91 to 100 of about 63,907 (219)

Modelling Heterogeneous Dependence in a Copula‐Linked By‐Production Frontier: Evidence From French Dairy Farms

Australian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT In agriculture, production technologies are often characterised by non‐linearities and stochastic dependence between outputs, particularly between desirable and undesirable outputs. This paper combines the copula‐based semi‐parametric framework for modelling heterogeneous dependence with the by‐production stochastic frontier approach and ...
Kofivi Dzegle, Ioannis Skevas
wiley   +1 more source

Research progress and problems prospect of silage technology

Siliao yanjiu, 2021
Silage is a kind of roughage obtained by sealing and anaerobic fermentation of fresh green crops that are edible by livestock. It is mostly used for feed ruminants. Characterizing by sour and fragrant smell, softness, juiciness and good palatability, the
Chen-chen YU, You-you WANG, Wen-qing LI, Meng-yao LI, Zi-mo CHAI, Hai-ling LI   +5 more
doaj  

Estimates of the increase in milk production due to the introduction of maize silage to a dairy farm in KwaZulu-Natal: A time series approach [PDF]

A method involving time series modelling is provided for evaluating the effects of an abrupt intervention, such as the adoption of a new technology, when no control is available for comparative evaluation. The new technology was the introduction of maize
Mkhabela, Thulasizwe S.
core  

Torture and scepticism in Papua New Guinea witch hunts Torture et scepticisme dans les chasses aux sorcières en Papouasie‐Nouvelle‐Guinée

Journal of the Royal Anthropological Institute, EarlyView.
For over a century, anthropologists have documented the many institutions that exist to respond to witchcraft and the uncanny that it names: oracles that attempt to produce certainty by naming the witch; moots in which grievances are aired; trials in magistrates’ courts that attempt to satisfy the community while preserving the life of the accused ...
Chloe Nahum‐Claudel
wiley   +1 more source

Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived bacterial semiochemicals

Insect Science, EarlyView.
Stable flies preferentially oviposit on sites offering conspecific eggs with egg‐derived airborne semiochemicals. Egg‐borne bacterial symbionts, and Serratia marcescens in particular, produce odorants which attract gravid female flies and elicit oviposition.
Emmanuel Hung, Anya Gould, Stephanie Zaborniak, Caelen Watson, Regine Gries, Sukhmani Kaur, Kyra Stephens, Augustus Negraeff, Ryan Lam, Alpha Hui, Pantea Zamani, Aryan Monfared, Gerhard Gries   +12 more
wiley   +1 more source

Biological ensilage of fish : optimization of stability, safety and functionality [PDF]

, 2002
This thesis deals with stability, safety, and functionality aspects of biological fish silage (BFS) obtained by lactic acid fermentation. BFS may provide an economically viable, environment friendly way of upgrading fish waste.BFS has been found ...
Enes Dapkevicius, M.L.N.
core  

Effects of high-sugar ryegrass silage and mixtures with red clover silage on ruminant digestion. 1. In vitro and in vivo studies of nitrogen utilization

, 2006
Two experiments were carried out to determine the effects of feeding grass silages differing in their water-soluble carbohydrate content, with or without red clover silage, on the efficiency of nutrient use.
Lee, MRF, Scollan, N. D., Dewhurst, R. J., Davies, DR, Moorby, J. M., Theodorou, MK, Davies, D. R., Dewhurst, RJ; id_orcid, Merry, RJ, Theodorou, M. K., Moorby, JM, Scollan, ND, Merry, R. J., Lee, M. R. F., Lee, Michael   +14 more
core   +1 more source

Beyond the Individual: Multisite Population‐Level Consequences of Road Mortality on a Declining Mammal

Animal Conservation, EarlyView.
We used a comparative study design to quantify population densities, structure, survival, cause‐specific mortality and female productivity in four West‐European hedgehog (Erinaceus europaeus) populations, and to forecast the impact of road mortality on population viability.
Lauren J. Moore, Silviu O. Petrovan, Adam J. Bates, Helen L. Hicks, Philip J. Baker, Sarah E. Perkins, David E. Wembridge, Richard W. Yarnell   +7 more
wiley   +1 more source

Population dynamics and reproductive success of Short‐eared Owls in relation to widely fluctuating food abundance and farmland habitat degradation

Ibis, EarlyView.
Populations of the Short‐eared Owl Asio flammeus have declined across Europe and North America, probably in response to habitat degradation driven by agricultural intensification. However, long‐term evidence linking farmland habitat change to variation in breeding density and reproductive success remains limited.
Erkki Korpimäki, Tero Klemola, Minna Koivula   +2 more
wiley   +1 more source

Local habitat, not landscape diversity, drives richness and reproduction of cavity‐nesting bees and wasps in agricultural landscapes

Insect Conservation and Diversity, EarlyView.
Local habitat type and hedgerow cover strongly shape bee and wasp richness, but only weakly their reproductive output, outweighing the landscape diversity effects at the 1‐km2 scale. Forests host more wasp but fewer bee species, whereas orchards support high richness of both; bee reproduction patterns are driven by one dominant species, while wasp ...
Sara Tassoni, Marit Kinga Kasten, Thomas Hiller, Michael Staab, Frank M. Schurr, Ingo Grass   +5 more
wiley   +1 more source