Results 11 to 20 of about 2,428,980 (302)

The cost of diversity in livestock feed rations

open access: yesPLOS ONE, 2022
This study investigates the financial cost of increasing the diversity of cereal grains in livestock feed rations. We first develop a nonlinear mathematical programming model that determines the least-cost composition of livestock feed rations of one metric ton that have at least the same energy and nutrient content as a reference feed ration.
Adam M. Komarek   +2 more
openaire   +5 more sources

Productive and reproductive parameters of carp when adding amaranth seeds to fish feed

open access: yesRibogospodarsʹka Nauka Ukraïni, 2020
Purpose. Study of the effect of amaranth feed additive on the peculiarities of growth, development, feed efficiency and economic component when rearing age-1+ carp; as well as the reproductive performance of female carp based on an analysis of its ...
R. Palamarchuk, O. Deren, S. Koba
doaj   +1 more source

Productive indices of age-2 carp after application of a prebiotic in their feeding

open access: yesRibogospodarsʹka Nauka Ukraïni, 2019
Purpose. To investigate the efficiency of the supplementation of the basic diet of age-3 carp with the prebiotic "Actigen" in pond conditions. To provide control over the aquatic environment conditions, to determine the effect of the tested supplement on
O. Dobryanska   +3 more
doaj   +1 more source

The cost of infant feeding in Liverpool, England [PDF]

open access: yesPublic Health Nutrition, 2004
AbstractObjective:To investigate feeding practices in infants under the age of 4 months in Liverpool, England with particular reference to the cost of infant feeding.Design:A cross–sectional survey consisting of self–completion questionnaires and interviews.Setting:Subjects' homes within Central and South Liverpool Primary Care Trust areas.Subjects:One
K, Berridge   +3 more
openaire   +2 more sources

THE EFFECT OF FISH FEEDING WITH ADDITIVES NUPRO® AND BIO-MOS® ON THE RESULTS OF THE REARING OF AGE-1+ CARP (CYPRINUS CARPIO CARPIO)

open access: yesRibogospodarsʹka Nauka Ukraïni, 2015
Purpose. To investigate the effect of feed fish with the additives NUPRO® and BIO-MOS® on the results of the rearing of age-1+ carp (Cyprinus carpio L.). Methodology.
А. Vaschenko, N. Matvienko
doaj   +1 more source

Effect of feeding semi-moist diet as a practical strategy to reduce feed costs in tilapia juvenile production

open access: yesActa Scientiarum: Biological Sciences, 2023
Tilapia (Oreochromis niloticus) is one of the species with the greatest increase in production worldwide. However, the continuous increase in the price of ingredients, and consequently in the diet costs may limit the expansion of the sector.
Luan Honorato   +5 more
doaj   +1 more source

Residual feed intake: A limiting economic factor for selection in poultry breeding programs

open access: yesAnnals of Agricultural Sciences, 2021
The recent breeding programs for livestock and poultry projects have aimed at maximizing productivity and minimizing gross costs. It is well known that feed represents the main variable component affecting the productive process.
M.M. Fathi   +4 more
doaj   +1 more source

The feed-in tariff in the UK : a case study focus on domestic photovoltaic systems [PDF]

open access: yes, 2013
This paper explores the photovoltaic (PV) industry in the United Kingdom (UK) as experienced by those who are working with it directly and with consideration of current standards, module efficiencies and future environmental trends.
Kirwan, Kerry   +3 more
core   +1 more source

The effect of amaranth Amaranthus (Linnaeus) on qualitative and productive characteristics of 1+ carp Cyprinus carpio (Linnaeus) after being added to the composition of the diet

open access: yesRibogospodarsʹka Nauka Ukraïni, 2018
Purpose. Determination of the effectiveness of amaranth assimilation in the body of 1+ carp, the study of the effect of this non-traditional feed component on some physiological and biochemical indices of experimental fish and the economic component of ...
R. Palamarchuk, O. Deren
doaj   +1 more source

Photovoltaics : reviewing the European feed-in-tariffs and changing PV efficiencies and costs [PDF]

open access: yes, 2014
Feed-in-Tariff (FiT) mechanisms have been important in boosting renewable energy, by providing a long-term guaranteed subsidy of the kWh-price, thus mitigating investment risks and enhancing the contribution of sustainable electricity.
T. Van Gerven   +10 more
core   +1 more source

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