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Опыт выращивания сеголеток гибрида «Русский осетр × севрюга» в рыбоводном хозяйстве юга Казахстана

Опыт выращивания сеголеток гибрида «Русский осетр × севрюга» в рыбоводном хозяйстве юга Казахстана

Abstract

The paper presents the results of experimental breeding of the one-years of hybrid of Russian sturgeon and stellate ( Acipenser gueldenstaedtii × Acipenser stellatus ) in basins supplied with artesian water. The values of thickness of stocking, water circulation in basins, weight and length growth, according to the results of control fishing, fish-breeding parameters at 2 stages of breeding: from grown up fingerlings to middle weight 5-10 g and from weight 5-10 g to replacement in the wintering ponds of carp fishing farm are presented. Hybrid vigour is demonstrated by the results of feeding feeding factor of one-year hybrid is rather lower (by 3.41 times) than that of Russian sturgeon fingerling. The dynamics of the values of coefficient of variation, asymmetry of the mass values, the values of coefficient of mass accumulation of Russian sturgeon and stellate hybrid was analyzed. It is shown that the rates of length and mass growth of Russian sturgeon and stellate hybrid fingerling and maternal species grown up in the same conditions are similar. It is also found that the biotechnical technologies for breeding hybrid and its maternal species are similar as well.

Представлены результаты экспериментального выращивания сеголеток гибрида «русский осетр × севрюга» ( Acipenser gueldenstaedtii × Acipenser stellatus ) в бассейнах, снабжаемых артезианской водой. Приведены значения плотности посадки, водообмена в бассейнах, весового и линейного роста по результатам контрольных обловов, рыбоводно-биологических показателей на двух этапах выращивания: от подрощенной молоди до средней массы 5-10 г и от массы 5-10 г до пересадки в зимовальные пруды карпового рыбоводного хозяйства. Гетерозис гибрида проявляется по результатам кормления кормовой коэффициент у сеголеток гибрида при кормлении значительно меньше (в 3,41 раза), чем у сеголеток русского осетра. Проанализирована динамика значений коэффициента вариации, асимметрии значений массы, значений коэффициента массонакопления гибрида «русский осетр × севрюга». Показано, что темпы линейного и весового роста сеголеток гибрида «русский осетр × севрюга» и материнской формы, выращиваемых в аналогичных условиях, сходны. Отмечается, что сходны и биотехнические приемы по выращиванию гибрида и его материнской формы.

Keywords

ОСЕТРОВЫЕ РЫБЫ,ГИБРИДЫ ОСЕТРОВЫХ,РУССКИЙ ОСЕТР × СЕВРЮГА,ВЫРАЩИВАНИЕ В БАССЕЙНАХ,АРТЕЗИАНСКАЯ ВОДА,ВЕСОВОЙ РОСТ,ЛИНЕЙНЫЙ РОСТ,РЫБОВОДНО-БИОЛОГИЧЕСКИЕ ПОКАЗАТЕЛИ,STURGEON FISH,STURGEON HYBRIDS,RUSSIAN STURGEON × STELLATE,BREEDING IN BASINS,ARTESIAN WATER,WEIGHT GROWTH,LENGTH GROWTH,FISH-BREEDING PARAMETERS

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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