Zootechnical Evaluation of a New Feed Additive

Kosolapova, Valentina; Kosolapov, Andrey

doi:10.33814/mak-2020-22-70-128-133

Cited by 2 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Particularly noteworthy are studies on the identification of forms with complex resistance and the creation of new breeding varieties of leguminous grasses on their basis [7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the resistance of medicago breeding samples to the action of abiotic stressors at the early stages of ontogenesis

Dumacheva,

Sajfutdinova,

Pechegina

et al. 2023

BIO Web Conf.

View full text Add to dashboard Cite

New knowledge was obtained about the relationship between the parameters of photosynthesis, transpiration and dark respiration in alfalfa varieties of various ecological and geographical origin at the early stages of ontogenesis, depending on the intensity of abiotic stressors: salinity conditions (0.3 M NaCl) and various intensity of photosynthetically active radiation (from 0 to 1500 mol*m−2 s−1). Purpose of the work: assessment of the potential resistance of alfalfa varieties and breeding samples to abiotic stressors for breeding for adaptability. To determine the parameters of gas exchange of cotyledon leaves of alfalfa varieties, a portable system for measuring plant gas exchange LI-6800, LI-COR, USA was used. The results of a two-way ANOVA analysis of the influence of the salinity factor and illumination conditions on the resulting signs of gas exchange parameters showed that the proportion of the influence of the genotype of breeding samples on the studied effective signs associated with the operation of the photosynthetic apparatus (the intensity of CO2 assimilation and the intercellular concentration of CO2) ranged from 7.25 to 21.35%; associated with water exchange parameters (transpiration and stomatal conductivity for H2O) varied from 18.80 to 19.84%. Selected breeding samples of alfalfa with high resistance of the photosynthetic apparatus to abiotic stressors.

show abstract

“…Particularly noteworthy are studies on the identification of forms with complex resistance and the creation of new breeding varieties of leguminous grasses on their basis [7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the resistance of medicago breeding samples to the action of abiotic stressors at the early stages of ontogenesis

Dumacheva,

Sajfutdinova,

Pechegina

et al. 2023

BIO Web Conf.

View full text Add to dashboard Cite

show abstract

“…В среднем в первые десять лет средняя урожайность сухой массы составляет 12,3 т/га [16]. Многочисленные исследования подтверждают целесообразность использования ежи сборной в качестве кормовой культуры при заготовке сенажа [17][18][19].…”

unclassified

Substantiation of the basic constructive-and-technological parameters of technology for preparing haylage of the cocksfoot (Dactylis glomerata L.) using gas preservative

Tulinov

Lobanov

2021

Vescì Nacyânalʹnaj akadèmìì navuk Belarusì. Seryâ agrarnyh navu

View full text Add to dashboard Cite

The most important task for the further development of animal breeding is increase of production of feed, increase of its quality and reduction of production costs. Important thing in these conditions is the parallel development of two areas - creation of highly productive agrocenoses and development of technologies capable of saving the obtained feed mass for future use during winter period. A valuable component in grass mixtures when creating highly productive hayfields in the North-West region is the cocksfoot (Dactylis glomerata L.), which in the North conditions forms rather high yield of feed mass, as soon as it responds to fertilizer application properly. On the basis of the Institute of Agrobiotechnology Federal Research Center Komi Scientific Center Ural Branch of the Russian Academy of Sciences (Russia, Komi Republic, Syktyvkar), a device has been developed for treating haylage by carbon dioxide. To determine the efficiency of this technique when harvesting haylage of cocksfoot, two series of experiments were carried out - laboratory and field. In the course of the laboratory experiment, we conducted an experiment according to the Box-Behnken plan of the second order for four factors with three levels of variation. The optimal parameters of the device were determined as a result: density of raw materials; volume of raw material processed by one spray nozzle; gas preservative consumption and its dose. In the field experiment, haylage was processed in rolls according to certain optimal parameters. The feed obtained was compared in terms of quality with haylage prepared of the same raw material in compliance with standard technology, but with no preservatives. As a result of the studies, it has been determined that carbon dioxide is most effective when harvesting the cocksfoot as raw material for haylage, with the following parameters: density of pressing the hay mass - 290-330 kg/m3 ; moisture content of raw materials - 53-55 %; dose of carbon dioxide introduced into the haylage - (0.40-0.50)∙10-3 m3 /kg; carbon dioxide consumption through a gas supply reducer 0.500.60 m3 /h. This provides an increase in feed units in one kilogram of feed by 0.3, exchange energy - by 0.4 MJ, digestible protein - by 1 g.

show abstract

Zootechnical Evaluation of a New Feed Additive

Abstract: The results of studies on the use of the symbiotic rumistart in the diets of cows during milking. The effect of feed additives on animal productivity and health indicators is established.

Cited by 2 publications

References 2 publications

Evaluation of the resistance of medicago breeding samples to the action of abiotic stressors at the early stages of ontogenesis

Evaluation of the resistance of medicago breeding samples to the action of abiotic stressors at the early stages of ontogenesis

Substantiation of the basic constructive-and-technological parameters of technology for preparing haylage of the cocksfoot (Dactylis glomerata L.) using gas preservative

Contact Info

Product

Resources

About