Results 31 to 40 of about 1,047,697 (160)

Transporte y precio del trigo en el siglo XIX: creación y reordenación de un mercado nacional [PDF]

, 1997
Editada en la Fundación Empresa PúblicaEl propósito de este trabajo es estudiar el proceso de integración del mercado del trigo en España en el siglo XIX.
Rafael Barquín Gil, Barquín Gil, Rafael   +1 more
core   +2 more sources

Política forestal y producción de los montes públicos españoles. Una visión de conjunto, 1861-1933 [PDF]

, 2002
Editada en la Fundación Empresa PúblicaUna de las consecuencias de las transformaciones de la propiedad de la tierra en España, durante el siglo XIX, fue la constitución de un extenso patrimonio forestal público (6,6 millones de hectáreas), que pasó a ...
Grupo de Estudios de Historia Rural
core   +1 more source

Use of a glycogenic precursor during the prepartum period and its effects upon metabolic indicators and reproductive parameters in dairy cows

Revista Mexicana de Ciencias Pecuarias, 2020
The aim was to evaluate if 1-2 propanodiol plus calcium propionate (glycogenic precursor) supplementation during the transition period in high yielding dairy cows reduces metabolic and reproductive dysfunctions during early lactation.
Carlos Leyva Orasma, Jesús Jaime Benitez-Rivas, Juan Luis Morales Cruz, Cesar Alberto Meza-Herrera, Oscar Ángel-García, Fernando Arellano-Rodríguez, Guadalupe Calderón-Leyva, Dalia Ivette Carrillo-Moreno, Francisco Veliz Deras   +8 more
doaj   +1 more source

Interaction of Inherited Microbiota from Cover Crops with Cash Crops

Agronomy, 2021
Cover crops (CC) provide important ecosystem services that are demanded to achieve more sustainable agrosystems. However, the legacy effects of CC on the microbial community structure and its interactions with the subsequent cash crops (CaC) are still ...
Kelly Ulcuango, Mariela Navas, Nelly Centurión, Miguel Á. Ibañez, Chiquinquirá Hontoria, Ignacio Mariscal-Sancho   +5 more
doaj   +1 more source

Effects of the composition of the pre-peak diet fed from 18 to 29 wk of age on egg production, egg quality, and the development of the gastrointestinal tract of brown-egg laying hens from 18 to 61 wk

Journal of Applied Poultry Research
SUMMARY: The effects of the nutritional characteristics of the diet fed from 18 to 29 wk of age on egg production and the development of the gastrointestinal tract (GIT) were studied in brown egg-laying hens from 18 to 61 wk of age.
A.F. De Juan, R. Scappaticcio, L. Aguirre, G.G. Mateos, L. Cámara   +4 more
doaj   +1 more source

A Circular Economy Approach to Integrate Divergent Ruminant Production Systems: Using Dairy Cow Feed Leftovers to Enhance the Out-of-Season Reproductive Performance in Goats

Animals, 2023
Based on a circular economy approach, we evaluated the possible effect of targeted supplementation with leftover feed from dairy cows (i.e., intensive system) on the reproductive performance of crossbred/rangeland goats (i.e., extensive system) in arid ...
Maria G. Machado-Ramos, Cesar A. Meza-Herrera, Angeles De Santiago-Miramontes, Miguel Mellado, Francisco G. Véliz-Deras, Fernando Arellano-Rodríguez, Viridiana Contreras-Villarreal, José R. Arévalo, Dalia I. Carrillo-Moreno, Jessica M. Flores-Salas   +9 more
doaj   +1 more source

Is mineral nutrient concentration of soybean, maize, and wheat grain affected by cropping sequence and agronomic management?

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Producers in the Argentine Pampas often fail to fully replenish the nutrients extracted by crops, leading to unsustainable soil fertility management. The objectives of this study were to (i) evaluate grain yield, mineral nutrient concentration, and extraction for maize (Zea mays L.), wheat (Triticum aestivum L.), and soybean (Glycine max L ...
D. E. Becheran, F. H. Miguez, F. E. Miguez, A. Peper, B. Benedit   +4 more
wiley   +1 more source

La crisis agraria de finales del siglo XIX en Málaga [PDF]

, 1986
Publicad
Pellejero Martínez, Carmelo
core   +1 more source

A Dual Approach Combining Metal‐Organic Frameworks and Commercial Solid‐Phase Microextraction Coatings for Monitoring Volatiles in Passion Fruit

Journal of Separation Science, Volume 49, Issue 9, September 2026.
A CIM‐80(Al) metal‐organic framework coating is proposed for the untargeted analysis of passion fruit juices using either headspace or direct immersion solid‐phase microextraction coupled with gas chromatography‐mass spectrometry. The CIM‐80(Al)‐coated fiber enabled the annotation of 14 unique compounds not detected with commercial fibers.
Montse Saura‐Cayuela, Martina Rosso, Cecilia Cagliero, Jorge Pasán, Juan H. Ayala, Verónica Pino, María J. Trujillo‐Rodríguez   +6 more
wiley   +1 more source

Effect of type of fiber and its physicochemical properties on performance, digestive transit time, and cecal fermentation in broilers from 1 to 23 d of age

Poultry Science
: The effects of insoluble fiber (IF) sources differing on particle size and hydration capacity (HC) on growth performance, gastrointestinal tract (GIT) development, cecal fermentation, and digestive transit time were investigated from 1 to 23 d of age ...
A. Rybicka, R. del Pozo, D. Carro, J. García   +3 more
doaj   +1 more source