Selection justification of the technology of intensive production of rabbit meat

Abstract

The article presents the results of research on the productivity of rabbits of different genotypes (growth and development, slaughter and meat indicators, fur productivity); a comprehensive evaluation of the productivity of rabbits in the process of industrial hybridization was carried out. The following research methods were used in the work: zootechnical (productivity, growth and development, reproductive capacity), genetic, biometric (determination of average values and their errors, probabilities of research results).
 The study was carried out in the FG "Elit" of the Kolomyia district; PE "Western Ukrainian Gardens" of Halytsky District; PP Havrylyuk O. Ya. Bogorodchansky district. The method of pairs of analogues was used in the studies. Their selection took into account genotype, sex, age, live weight, origin, physiological state, lactation period, fertility, productivity (reproduction of female rabbits, fattening and slaughter indicators, etc.). Analogous animals in different groups had maximum similarity, and some differences were allowed within the group.
 The productivity of female rabbits and young rabbits was evaluated according to the index of reproductive qualities of the female rabbit (Luchin, 2004) and the index of comprehensive assessment (PKO) (Luchin, 2005). The received materials of scientific research were processed by the methods of variational statistics according to V.P. Kovalenko et al. (2010).
 It was established that different variants of crossing the maternal and paternal forms of the three-breed genotype of rabbits 4/8 white giant 3/8 local chinchilla 1/8 Flanders had different effects on the reproductive indicators of female rabbits and subsequent fattening indicators of young rabbits, in particular, average daily growth and waist width.
 A successful combination of maternal and paternal forms of rabbits (group 2) was revealed, which in the process of industrial hybridization ensured an increase in multifertility by 8.1 head or 2.5 % (р<0.05), high fertility by 64g or 6.25 % (р<0.05), milk yield by 2.8 kg or 7.2 % (p<0.05), nest weight at 35 days old by 13.4 % (p<0.01). The hybrid young obtained from female rabbits of group 2 (IVYAK + 5 %) was characterized by a higher body weight by 43.8 g or 10.3 % (p<0.001) and waist width by 6.15 cm or 12.2 % (p< 0.001) to 3 control groups.
 The positive result was achieved due to the effective combination of the initial forms, which in turn ensured high productivity of the stock (heterosis) of the final hybrid and its resistance to climatic and technological conditions of keeping.

Genetic characteristics of Poltavske sriblo rabbits by myostatin and progesterone receptor gene and selection indices

“…A significant role in providing humanity with food, fur products, and rabbit wool raw materials is attributed to rabbit breeding (Bashchenko et al, 2018;Vakulenko, 2008;Shevchenko & Honchar, 2011;Lebas et al, 1986). It refers to such a segment of livestock breeding, which has great potential for increasing the production of relatively cheap and high-quality meat products in a short time (Bilyi, 1990;Vakulenko & Ochkovska, 2007;Luchyn, 2022).…”

“…Different rabbit breeds and the anatomical location of muscles may also affect the nutritional profile and physicochemical properties of rabbit meat (Kumar et al, 2023) The main components determining the economic efficiency of rabbit breeding with the full realization of the genetic potential of animals and a good feed base are their productive, maternal, reproductive, and technological characteristics, which are necessary components of breeding work aimed at the improvement of parental forms. To stabilize and increase this indicator, it is necessary to establish a set of measures to improve the maintenance, as well as to carry out constant control of the veterinary support of the industry and conduct selective and breeding work with the rabbit breeding herd (Luchyn, 2022;Bolet et al, 2000;Lesyk et al, 2021).…”

Productive parameters of rabbits fed with additives containing lactic and succinic acid, amino acid and vitamins

“…Use of the Ladozim Respect Ultra enzymatic supplement in feeding rabbits increased their live weight by 4.9%, survival of progeny by 5.0%, and also improved the hematological parameters, increased the levels of hemoglobin, erythrocytes and leukocytes (Chudak, 2020). Giving young rabbits 9% baker's yeasts fostered the growth intensity, meat productivity and improved food conversion by 4.1%, thereby improving the cost effectiveness by 44.4% (Luchyn & Darmogray, 2016;Luchyn, 2022). Over the recent years, the sphere faced critical problems related to the EU prohibition of usage of antibiotics, used in animal husbandry for prophylaxis and growth stimulation, as well as restriction of their usage due to emergence of resistance (Regulation (EC) No.…”

Окремі види нематод органів травлення ссавців з родини зайцевих (Leporidae Fischer de Waldheim, 1817)

“…Зокрема, кролики -це багатоплідні тварини, приплід від самок отримують упродовж всього року, а кількість кроленят за один окрол може інколи становити до 18-ти і навіть більше. Кролі -це швидкорослі тварини, які не потребують особливих кормів та спеціальних раціонів [18][19][20][21].…”