The study evaluated the changes in body temperatures and hematological parameters in periparturient rabbit does and the dynamics of body surface temperature in neonatal rabbit kits during West African winter. The variables were measured in 21 rabbits, comprising periparturient ( = 12) and dry ( = 9) does, and after kindling, the kits were grouped based on litter size, into small (4 kits per litter; = 24) and large (5-7 kits per litter; = 34) litter. Results revealed that all body temperatures of the does were lower ( < 0.05) during gestation compared with lactation period or dry does in all hours of the day, and the PCV was significantly higher in lactating than dry does. At birth, small litter kits had higher ( < 0.05) body weight and morning body surface temperature than the large litter kits. The large litter kits showed distinct ( < 0.05) diurnal variation in body surface temperature from birth, while diurnal variation in the small litter kits was absent ( > 0.05) in the first three days after birth. It was concluded that pregnant rabbits and large litter kits may have poor thermoregulation during West African winter, and thus, the need for special protective housing to improve productivity.
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http://dx.doi.org/10.1080/10495398.2022.2150200 | DOI Listing |
Animal
January 2025
Institute of Animal Science and Technology, Universitat Politècnica de València, Camino de Vera, s/n. 46022 Valencia, Spain.
Genetic selection for growth rate has often been related with potential negative effects on various reproductive traits across different species. Using rabbit as a model, this study has evaluated for the first time how genetic selection for growth rate has affected feed efficiency, resource allocation, blood traits, reproductive performance and survival during five reproductive cycles in rabbit does. To this end, we used 88 reproductive rabbit females from two vitrified and rederived populations of the same paternal line, differing only in 18 generations of genetic selection for growth rate (n = 44 for R19V and n = 44 for RV37V).
View Article and Find Full Text PDFJ Anim Physiol Anim Nutr (Berl)
December 2024
Veterinary Economics and Farm Management, Department of Animal Wealth Development, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt.
Feed cost represents about 70% of the total production costs of rabbit farms. There is little research on the usage of Berseem and Fenugreek seeds as substitutes for soybeans in rabbit diets. The current investigation was conducted to assess the influence of dietary inclusion of Fenugreek and/or Berseem seeds at varying levels as a substitute for soybean meal on reproductive performance, milk production, maternal behaviour, economic efficiency, mammary gland and ovarian histology, and relative expression of reproductive genes of New Zealand White rabbit does.
View Article and Find Full Text PDFJ Anim Sci
January 2024
College of Animal Science and Technology, Northwest A&F University, Xianyang 712100, China.
The lactation-pregnancy overlap in the industrialized 49-d breeding model increases nutritional demands for lactating-pregnant rabbit does. This study examined the effects of folic acid (FA) on the production performance and intestinal microflora of does with different litter sizes (LS, or number of kits). A total of 144 third-parity Hyplus does, aged 11 mo and weighing approximately 5.
View Article and Find Full Text PDFVet Sci
October 2024
School of Biosciences and Veterinary Medicine, University of Camerino, Via Circonvallazione 93/95, 62024 Matelica, Italy.
J Trace Elem Med Biol
December 2024
College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471003, China. Electronic address:
Background: Molybdenum (Mo) plays a crucial role in regulating normal physiological function. However, its potential effect on female infertility has received little attention.
Methods: In this study, we explored the potential molecular mechanisms of Mo's action on mouse ovaries and oocytes by establishing a busulfan-induced infertility model.
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