Results 81 to 90 of about 66,848 (293)

The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa

Agribusiness, EarlyView.
ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor, Bright Owusu Asante, David Boansi, Victor Owusu   +3 more
wiley   +1 more source

Net mineral requirements for the growth and maintenance of Somali lambs

Animal, 2019
Minerals are limiting factors in animal production, and the knowledge of mineral requirements for livestock is crucial to the success of a commercial enterprise.
E.S. Pereira, F.W.R. Lima, A.C.N. Campos, M.S.S. Carneiro, L.P. Silva, M.W.F. Pereira, A.N. Medeiros, L.R. Bezerra, R.L. Oliveira   +8 more
doaj   +1 more source

Energy and protein requirements of woolless sheep under tropical conditions

, 2020
The objective of this study was to determine the energy and protein requirements for maintenance and weight gain of growing woolless sheep and, in addition, to estimate the shrunk body weight (SBW) and empty body weight (EBW) of the animals according to ...
Cutrim, Darley Oliveira, Oliveira, Luis Rennan Sampaio, Barcelos, Sandra de Sousa, Luz, Janaina Barros, Alves, Kaliandra Souza, Mezzomo, Rafael, Gomes, Daiany Íris, Nascimento, Karolina Batista, Gionbelli, Mateus Pies   +8 more
core   +1 more source

Programmable Flocks: Hierarchical Swarm Control via Dynamic Parameter Injection

Advanced Intelligent Systems, EarlyView.
We present a method for the control of robot swarms which allows the shaping and the translation of patterns of simple robots (“smart particles”), using two types of devices. These two types represent a hierarchy: a larger group of simple, oblivious robots (which we call the workers) that is governed by simple local attraction forces and a smaller ...
Vivek Shankar Varadharajan, Giovanni Beltrame   +1 more
wiley   +1 more source

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

American 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, Thomas L. Marsh   +1 more
wiley   +1 more source

Molecular mechanism of ischemic postconditioning in promoting diabetic ischemic brain injury repair via the microRNA‐34a–BDNF–SIX3 signaling axis

Animal Models and Experimental Medicine, EarlyView.
Diabetes combined with ischemic stroke (DMIS) exacerbates brain infarct size and neuronal damage compared to nondiabetic ischemic stroke (IS). This study reveals that microRNA‐34a (miR‐34a) plays a key role in DMIS pathogenesis: miR‐34a directly targets and suppresses brain‐derived neurotrophic factor (BDNF) and Sine oculis homeobox 3 (SIX3), promoting
Ling Zhao, Chunlan Zou, Junxian Li, Yang Yang, Yuanyuan Han, Tingyu Ke   +5 more
wiley   +1 more source

Indirect costs of sheep depredation by large carnivores in Sweden

Wildlife Society Bulletin, 2019
Carnivore depredation gives rise to direct costs for killed and injured animals as well as indirect costs due to productivity losses and additional labor requirements.
Marit Widman, Margareta Steen, Katarina Elofsson   +2 more
doaj   +1 more source

Hormone glycosylation required for lutropin receptor recognition in sheep testis

FEBS Letters, 1990
The high affinity binding sites for ovine pituitary lutropin (oLH) present in DLS‐1 sheep testis recognized only the fully glycosylated ovine or bovine hormone (bLH) in receptor binding assays using 125I‐labeled oLH. Chemically deglycosylated (DG‐) oLH or bLH which were fully active with other lutropin receptors (rat/pig) were completely inert in the ...
Sairam, M.R., Bhargavi, G.N., Yarney, T.A.   +2 more
openaire   +2 more sources

An attempt to define the sodium requirements of lactating dairy cows in a tropical environment

, 2011
BACKGROUND: Lactating dairy cattle in the tropics may require more sodium (Na) owing to the hot and humid climatic conditions. It is unknown whether the current recommendations on Na for lactating cows can be quantitatively used in tropical countries ...
Advances in Veterinary Medicine, Martin WA Verstegen, Jan Thomas Schonewille, Theera Rukkwamsuk, Wouter H Hendriks, Thiangtum, W., Yawongsa, A., Hendriks, W.H., Rukkwamsuk, T, Chalermpon Yuangklang, Dep Gezondheidszorg Landbouwhuisdieren, Yuangklang, C., Rukkwamsuk, T., Wandee Thiangtum, Verstegen, M.W.A., Adisorn Yawongsa, Schonewille, J.T.   +16 more
core   +1 more source

Porcine kidney xenotransplantation: From primate models to clinical reality

Animal Models and Experimental Medicine, EarlyView.
In the face of a critical shortage of human donor kidneys for end‐stage renal disease patients, porcine kidney xenotransplantation has emerged as a viable solution. This field has navigated major hurdles, including immune rejection, physiological incompatibilities, potential biomechanical differences and the risk of cross‐species infection. To overcome
Zihang Guo, Ling Zhang, Shoulong Deng, Chuan Qin   +3 more
wiley   +1 more source