Results 1 to 10 of about 102,009 (166)

The Effect of Dietary Concentrations of Digestible Lysine and Sulphur Amino Acids on The Productive Performance and Egg Quality Traits in Aged Laying Hens [PDF]

Veterinary Medicine and Science
Background Most laying hen diets are based on corn–soybean meal, in which methionine and lysine are limiting amino acids. Objectives This study aimed to investigate on the effects of digestible lysine (dLys) and total sulphur amino acids (dTSAA) levels ...
Ahmad Hassanabadi, Elnaz Fallah Moghadam, Heydar Zarghi   +2 more
doaj   +2 more sources

Productive performance of Mexican Creole chickens from hatching to 12 weeks of age fed diets with different concentrations of metabolizable energy and crude protein [PDF]

Animal Bioscience, 2021
Objective The study aimed to evaluate the productive performance, carcass yield, size of digestive organs and nutrient utilization in Mexican Creole chickens, using four diets with different concentrations of metabolizable energy (ME, kcal/kg) and crude ...
Miguel Ángel Matus-Aragón, Fernando González-Cerón, Josafhat Salinas-Ruiz, Eliseo Sosa-Montes, Arturo Pro-Martínez, Omar Hernández-Mendo, Juan Manuel Cuca-García, David Jesús Chan-Díaz   +7 more
doaj   +1 more source

The productive performance of intercropping

Proceedings of the National Academy of Sciences, 2023
Crop diversification has been put forward as a way to reduce the environmental impact of agriculture without penalizing its productivity. In this context, intercropping, the planned combination of two or more crop species in one field, is a promising practice.
Li, Chunjie, Stomph, Tjeerd-Jan, Makowski, David, Li, Haigang, Zhang, Chaochun, Zhang, Fusuo, van der Werf, Wopke   +6 more
openaire   +3 more sources

EFFECT OF PROPYLENE GLYCOL ON BLOOD METABOLITES, RUMINAL AND PRODUCTIVE PARAMETERS OF GROWING-FINISHING LAMBS

Tropical and Subtropical Agroecosystems, 2022
Background. Propylene glycol has been used successfully since the 1950’s for him acute and prophylactic treatment of ketosis in dairy cows however; its use has been poorly evaluated in beef cattle and meat sheep. Objective.
Araceli López Vargas, Teódulo Quezada Tristán, Carlos Urban Haubi Segura, Rafael Macedo Barragán, Arturo Gerardo Valdivia Flores, Raúl Ortiz Martínez, Carlos Leonel Hernández Millán   +6 more
doaj   +1 more source

Evaluating productive performance, meat quality and oxidation products of Italian White breed rabbits under free-range and cage rearing system [PDF]

Animal Bioscience, 2022
Objective Free-range systems have been increasingly available to the consumer due to increased demand for more sustainable meat-products. In the current study, the effect of free-range (FR) and cage system (CS) was explored on growth performance, meat ...
Vincenzo Tufarelli, Alessandra Tateo, Michele Schiavitto, Domenico Mazzei, Giovanna Calzaretti, Vito Laudadio   +5 more
doaj   +1 more source

Navigating Performance, Portability, and Productivity [PDF]

Computing in Science & Engineering, 2021
The phrase “performance portability” is commonly used, but may mean different things to different people. Developing a better appreciation of the needs of different software developers and a framework for talking about these needs improves our ability to define goals, design experiments, and make forward progress.
S. John Pennycook, Jason D. Sewall, Douglas Jacobsen, Tom Deakin, Simon McIntosh-Smith   +4 more
openaire   +2 more sources

Productivity and Financial Performance [PDF]

, 2018
Abstract This chapter explores the relationship between productivity and financial performance, primarily at the level of an individual business. It begins by decomposing profit change into price and quantity drivers, under alternative accounting treatments of operating surplus.
Grifell-Tatje, Emili, Lovell, C. A. Knox
openaire   +2 more sources

Methionine plus Cystine Levels for Light Laying Hens on Growth Phase

Revista Principia, 2021
The aim of this study was to evaluate the methionine plus cystine levels in the diets of laying hens during the rearing period (13-18 weeks old). The diets included a control diet formulated according to NRC and five other diets with different levels of ...
Marcelo Helder Medeiros Santana, Fernando Guilherme Perazzo Costa, Ricardo Romão Guerra, Jalceyr Pessoa Figueiredo Júnior, Matheus Ramalho de Lima, Sarah Gomes Pinheiro   +5 more
doaj   +1 more source

Effect of strain and sex on productive performance and carcass traits in some broiler chickens [PDF]

Archives of Agriculture Sciences Journal, 2022
This study was aimed to investigate the effect of strain and sex on productive performance and carcass traits of commercial hybrids Ross 308 and Cobb at 35 days age.
E. Gafar, S. Abdo, M. Mahrous, M. Kamal
doaj   +1 more source

Modulation of Antioxidant Defense, Immune Response, and Growth Performance by Inclusion of Propolis and Bee Pollen into Broiler Diets

Animals, 2022
(1) Background: Propolis and bee pollen have natural bioactive compounds that may support the performance and immunological response of broilers. (2) Methods: The study included 300 1 d old Cobb-500 broiler chicks.
Saad N. AL-Kahtani, Abdulaziz A. Alaqil, Ahmed O. Abbas   +2 more
doaj   +1 more source