Meat productivity and interior features of mongrel lambs (½ Kalmyk fat tailed + ½ Dorper) at intense feeding

Pogodaev, V. A.; Aduchiev, Bator; Сергеева, Н. В.; Pogodaeva, I. V.

doi:10.1088/1755-1315/624/1/012048

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…The economic condition, national economic significance and prospects for the development of sheep breeding in our country directly depend on the meat productivity of sheep. In this regard, there is a great interest in its improvement based on the use of the available breed gene pool of meat breeds of sheep, the creation of new breeds, more productive, well adapted to the local natural and technological conditions of their breeding (Pogodaev et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The Dorper breed as a stage in the sustainable development of the agroindustry

Pogodaev,

Parzhanov,

Azhimetov

et al. 2023

Braz. J. Biol.

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The economic condition, national economic significance and prospects for the development of sheep breeding in our country directly depend on the meat productivity of sheep. The purpose of our research was to study the qualitative indicators of sheepskins and the histological structure of the skin of Kalmyk fat-tailed rams and crossbreeds obtained on the basis of crossing of Kalmyk fat-tailed ewes with Dorper rams. The work was carried out in LLC “Agrofirma Aduchi”, Republic of Kalmykia. It was found that the coarser wool of the rams of group I was 4.7 microns or 12.9%, in contrast to the peers of group II. The control animals have 40 quality wool, and the experimental ones - 36, that is, the wool of hybrid young animals is thinner by two whole qualities, which is a very good indicator for the textile industry. The fineness of the awn was thicker in purebred rams by 8.5%, the fineness of transitional hair and fluff by 17.8%, in contrast to hybrid young. In the study of the histological parameters of the skin, it was revealed that the rams of group I had 352.57 µm thicker skin (14.52%) in comparison with their peers in group II. In this case, the thickness of the layers of the total thickness of the skin in animals of group I is: epidermis - 0.8%, pilar - 69.8%, reticular - 29.4%; Group II - epidermis - 1.2%, pilar - 60.5%, reticular - 38.3%. The densest epidermis was found in crossbred young animals of group II. Their superiority in this indicator over their peers in the control group was 6.12 microns or 27.7%. This is due to the fact that in animals of the meat direction, the epidermal part (flesh) is thicker. Crossbred rams have a larger area of sheepskins, the skin is more elastic, durable and less thick, such sheepskins are first-class raw materials for the industrial production of fur products. The density of the coat (the ratio of WF / PF) in crossbred rams is greater than that of purebred peers.

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Section: Introductionmentioning

confidence: 99%

The Dorper breed as a stage in the sustainable development of the agroindustry

Pogodaev,

Parzhanov,

Azhimetov

et al. 2023

Braz. J. Biol.

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Increasing the meat productivity of young sheep based on the use of the gene pool of the Dorper and Hissar breeds

Ombayev,

Parzhanov,

Azhimetov

et al. 2023

Braz. J. Biol.

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In the pursuit of enhanced mutton production, improving the genetic reservoir of sheep with early maturation and high meat productivity is imperative. This study aims to assess the efficacy of integrating Dorper and Hissar rams into the breeding program of Kazakh fat-tailed coarse-haired ewes for generating young mutton. The research involved forming three groups, each comprising 40 ewes of the Kazakh fat-tailed coarse-haired breed, based on analog pairs. Ewes in Group I were inseminated with Dorper ram semen, those in Group II were inseminated with Hissar ram semen, and Group III served as a control with purebred Kazakh fat-tailed coarse-haired sheep breeding. Results revealed that crossbred rams in Group II achieved a significantly higher live weight of 45.2 kg at 120 days of age, surpassing the other groups by 9.7 kg and 10.6 kg. Crossbred gimmers in Group II reached a live weight of 42.0 kg by 4 months, outpacing the other groups by 12.2 kg. The crossbred lambs exhibited an expansive, deep, and sturdy physique, indicative of elevated meat productivity. Physique index analysis displayed that crossbred rams exhibited elongated limbs, bulkiness, and massiveness compared to purebred Kazakh fat-tailed coarse-haired lambs. In the 4.0-4.5-month age range, crossbred rams demonstrated a higher carcass muscle yield than their purebred counterparts, albeit the latter exhibited a 0.18% greater bone yield. Moreover, the meat of groups I and II sheep contained 19.6% and 20.1% protein content, respectively, surpassing the local Kazakh fat-tailed sheep population by 0.7% and 1.2% in absolute terms.

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Meat productivity and interior features of mongrel lambs (½ Kalmyk fat tailed + ½ Dorper) at intense feeding

Cited by 2 publications

References 8 publications

The Dorper breed as a stage in the sustainable development of the agroindustry

The Dorper breed as a stage in the sustainable development of the agroindustry

Increasing the meat productivity of young sheep based on the use of the gene pool of the Dorper and Hissar breeds

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