Early sibling aggression of Eurasian lynx depends on the growth rate

Antonevich, A. L.; Ерофеева, М. Н.; Naidenko, C. V.

doi:10.1134/s001249661206004x

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…However, the growth and development may differ in the litters with different number of kittens. Usually, the offspring in smaller litters grow faster (Ajayi et al, 2018; Antonevich et al, 2012; Erofeeva et al, 2020; Hudson et al, 2011; Naidenko, 2006; Rödel et al, 2008) than in the larger ones. We supposed (Hypothesis 2) that the kittens in small litters will have higher immunity (number of leukocytes and their different types) like it was described for some species (Ilmonen et al, 2003; Prager et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Leukocytes count and profile during early postnatal ontogenesis in domestic cats: Effect of litter size and multiple paternity

et al. 2021

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Since blood cells count is the most important indicator of animals’ physiological status, we investigated the effects of age, litter size, and multiple paternity on the total number of white blood cells, the number of their individual types (lymphocytes, neutrophils, eosinophils, monocytes), and the ratio of neutrophils to lymphocytes in domestic cat during early postnatal ontogenesis. The study was conducted on kittens living in outdoor conditions, aged from birth to 6 months. The number of white blood cells was evaluated using a hemoanalyzer, the leukocyte formula and the proportion of cell types were determined manually from blood smears. Age significantly affected the number of leukocytes in the first 3 months of kittens’ age. The number and proportion of neutrophils were the highest after birth and gradually decreased during the first month. Lymphocytes number, on the contrary, increased during this period. Monocytes and eosinophils increased in number in the first 2 months. The litter size affected the number of leukocytes and neutrophils in the first 2 months of life, their number being significantly higher in kittens from the small litters than from the large ones. In kittens from the litters with multiple paternity, the number of leukocytes and the proportion of neutrophils was higher than in litters from a single male. Thus, age, litter size and type of paternity may affect the hematological indices in domestic cats, which must be taken into account during the estimation of the health status of kittens in domestic and wild cats.

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Section: Introductionmentioning

confidence: 99%

Leukocytes count and profile during early postnatal ontogenesis in domestic cats: Effect of litter size and multiple paternity

et al. 2021

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“…However, its population is small and is 27-30 thousand animals in Russia and 451 individuals are accounted for the period 2013/2014 years on the Altai Territory. A low abundance depends on exogenous (lynx-an object of hunting) and endogenous factors (early sibling aggression, which resulted in up to 10% dying kittens) (Naidenko, 1997;Antonevich, Erofeeva, Naidenko, 2012). Thus, study of the behaviour of the Eurasian lynx and their conditions in zoos and specialized nurseries has a practical and theoretical significance.…”

Section: Introductionmentioning

confidence: 99%

Different enriched environments for Eurasian lynx in the Barnaul Zoo

Antonenko¹,

Ulitina²,

Pysarev³

et al. 2019

Ukr J Ecol

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Our primary interest is in welfare of Eurasian lynx (Lynx lynx) in the Barnaul Zoo. As discussed below, behavioural researches can reveal much about the welfare of captive wild animals. Eurasian lynx behaviour is studied and time budget is calculated for male and female. The Schorygin’ similarity coefficient of behaviour is determined (87.2%). The male lynx demonstrated low degree of stereotypic behaviour–5.9%, the female lynx–3.8%. We analyzed the differences in their behaviour before and after environmental enrichment. Olfactory environmental enrichment exhibits a decrease of male stereotypic behaviour on 24.3% and of female on 18.8%. Feeding environmental enrichment reduces male stereotypic behaviour on 15.9%, female on 20.3% (with a rat trunk); the male lynx pacing is diminished on 0.9% and female stereotypic behaviour on 1.4% in experiments with meat under fresh-cut grass. Based on our findings, we recommend that lynxes should be housed by mating pair (male with female), with appropriate hiding locations and with the varied feeding, change decorations for captive lynx, carry out tests by olfactory environmental enrichment (with pony droppings and with valerian) and feeding environmental enrichment. It could be concluded that animal welfare depends on keepers’ goodwill relation with captive lynx.

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