Results 51 to 60 of about 1,362 (210)

Grazing criteria for perennial peanut (Arachis pintoi cv. Amarillo) consumed by sheep in rotational stocking

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The objective of work was to study the productive profile of perennial peanut in a rotational stocking environment under different criteria. The treatments corresponded to pre-grazing height of 14 and 18cm or 95% of light interception (LI) distributed in
A.B. Kröning, O.A.D. Costa, P.P. Farias, L.A. Martins, O.G. Ott, S. Macari, O.G.L. Ferreira   +6 more
doaj   +1 more source

Período de descanso, características estruturais do dossel e ganho de peso vivo de novilhos em pastagem de capim-mombaça sob lotação intermitente Rest period, canopy structural traits and steer body weight gain on intermittently grazed mombaçagrass pasture

Revista Brasileira de Zootecnia, 2005
Em pastagem de capim Panicum maximum cv. Mombaça, avaliou-se o efeito de dois períodos de descanso, definidos pelo tempo necessário para a expansão de 2,5 e 3,5 novas folhas/perfilho, sobre as características estruturais do dossel altura, massa de ...
Emerson Alexandrino, Carlos Augusto Miranda Gomide, Magno José Duarte Cândido, José Alberto Gomide   +3 more
doaj   +1 more source

Apparent selectivity of sheep in deferred marandu palisadegrass pastures with variable initial heights [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
The objective of this study was to evaluate the apparent selectivity of sheep in marandu palisadegrass (Urochloa brizantha cv. Marandu) pastures with four heights at the beginning of the deferment period (15, 25, 35 and 45cm). The deferment period was 92
M.E.R. Santos, L.E.F. Afonso, B.H.R. Carvalho, A.C. Rêgo, G.J.S. Queiroz, J.A.S. Medica, L.S. Moraes, L.L.S. Carmo   +7 more
doaj   +1 more source

Modular Electronic Microrobots With Onboard Sensor‐Program‐Steered Locomotion

Advanced Intelligent Systems, EarlyView.
Modular electronic smartlet microrobots integrate ambient‐light energy harvesting, photodetection, programmable CMOS control, and bubble‐based actuation within a sub‐millimeter fold‐up architecture. A 58‐bit on‐board CMOS chiplet enables sensor–program steered switching between independently addressable actuators, achieving closed‐loop 2D navigation in
Vineeth K. Bandari, Yeji Lee, Pranathi Adluri, Daniil Karnaushenko, Dmitriy D. Karnaushenko, John S. McCaskill, Oliver G. Schmidt   +6 more
wiley   +1 more source

Estrutura do capim-braquiária durante o diferimento da pastagem = Signalgrass structure during pasture deferment

Acta Scientiarum: Animal Sciences, 2010
O experimento foi realizado para avaliar o número de perfilhos, a massa de forragem e de seus componentes morfológicos em pastos de Brachiaria decumbens cv. Basilisk durante o diferimento da pastagem.
Manoel Eduardo Rozalino Santos, Dilermando Miranda da Fonseca, Virgilio Mesquita Gomes, Eric Márcio Balbino, Marcela Azevedo Magalhães   +4 more
doaj  

Diatom‐Inspired 1D Immobile Robots Capable of 2D Collective Mobility

Advanced Intelligent Systems, EarlyView.
This study presents a diatom‐inspired robotic system that explores group coordination through limited physical interactions. The researchers tune groups of Barbots, simple robotic agents that possess neither individual mobility nor explicit communication capabilities, to achieve complex and adaptive collaboration based on environmental light.
Tianyi Hu, Yunjia Zhang, Chu Qiao, Tingrui Zhang, Shuguang Li   +4 more
wiley   +1 more source

Agricultural answers and chemical composition of Massai grass under different nitrogen doses and urea sources

Semina: Ciências Agrárias, 2018
Under the hypothesis that modifying nitrogen sources and doses could increase nitrogen fertilization efficiency and productivity and improve forage quality, this study aimed to evaluate the morphological composition, structural characteristics and ...
Aline Barros da Silva, Carlos Augusto Brandão de Carvalho, Danilo Antonio Morenz, Pedro Henrique Ferreira da Silva, Alex Junio dos Santos, Fábio Costa dos Santos   +5 more
doaj   +1 more source

Sward structure and ingestive behavior of cows in tropical pastures managed under different forage allowances [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
This study evaluated how changing the structure of Brachiaria brizantha cv. Marandu pasture under different forage allowances (FA) of 4, 7, 10 and 13kg DM/100kg BW (body weight) affected animal behavior over a two-year evaluation period.
E.R. Janusckiewicz, D.R. Casagrande, E. Raposo, C. Bremm, R.A. Reis, A.C. Ruggieri   +5 more
doaj   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

American Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt, Stefan Seifert, Saskia Wolff, Tobia Lakes, Marten Graubner, Axel Werwatz, Silke Hüttel   +6 more
wiley   +1 more source

Accounting for animal health in efficiency analysis: An application to Swedish dairy farms

American Journal of Agricultural Economics, EarlyView.
Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang, Enoch Owusu‐Sekyere, Karin Alvåsen, Helena Hansson   +3 more
wiley   +1 more source