Zobrazeno 1 - 10
of 483
pro vyhledávání: '"R. Ungerfeld"'
Publikováno v:
JDS Communications, Vol 5, Iss 5, Pp 505-510 (2024)
The objectives of this study were to determine the social behavior response to repeated social regrouping (SR), and if social rank and the changes of social rank affect the growth rate and some metabolites and hormones linked to energy status, in “
Externí odkaz:
https://doaj.org/article/09d71d8b6e2f4248be021012b382dfbf
Autor:
R.M. Aroña, A. Longinos Muñoz, H. Hernandez, R. Ungerfeld, M. Keller, P. Chemineau, Jose Alberto Delgadillo
Publikováno v:
Tropical and Subtropical Agroecosystems, Vol 26, Iss 1 (2023)
Background. Anestrous goats can cycle and become pregnant after the introduction of sexually active bucks, but some of them become anestrus probably because they have been fertilized and early embryonic death occurred or because they have not been fe
Externí odkaz:
https://doaj.org/article/b0956fed3dc14b79abb6b9e62b7ba047
Autor:
A. Orihuela, R. Ungerfeld
Publikováno v:
World Rabbit Science, Vol 27, Iss 3, Pp 157-162 (2019)
Vocalisations can be used as reliable indicators of pain, but little information is available in rabbits, where acoustic tools for farming environments can be used for welfare judgements. The aim of this study was to compare vocalisations produced du
Externí odkaz:
https://doaj.org/article/68b1ff76f19f4d6fa8633532d7731102
Publikováno v:
Animal, Vol 13, Iss 6, Pp 1297-1303 (2019)
In intensive feeding systems, competition may be high and social dominance may affect animal performance by changing dry matter intake (DMI) and behavioral time budgets. If competition level is maintain over time, the strategies developed by heifers
Externí odkaz:
https://doaj.org/article/2aa12d193a4a415698c7a4a48fd11639
Autor:
L. Pérez-Torres, P. Ortiz, J.F. Martínez, A. Orihuela, I. Rubio, M. Corro, C.S. Galina, R. Ungerfeld
Publikováno v:
Animal, Vol 15, Iss 2, Pp 100132- (2021)
Information on weaning techniques in the tropics is scarce, particularly regarding the long-term effect of temporary early cow–calf separation or restricted suckling. Therefore, we studied the effects of these two handling practices on well-being a
Externí odkaz:
https://doaj.org/article/940aacbfdfaf4169a88a1854c189811c
Publikováno v:
Animal, Vol 12, Iss 1, Pp 98-105 (2018)
The aim of this study was to determine if the absence of the mother during rearing has long-term effects on sexual behaviour and physiological reproductive parameters of adult rams. Two groups of rams were: (1) artificially reared, separated from the
Externí odkaz:
https://doaj.org/article/9e6d0a5a91894788b7066a07557ae401
Autor:
S. Abril-Sánchez, N. Crosignani, A. Freitas-de-Melo, A. Terrazas, J.P. Damián, F. Beracochea, P. Silveira, R. Ungerfeld
Publikováno v:
Animal, Vol 12, Iss 12, Pp 2598-2608 (2018)
Electroejaculation (EE) is stressful and probably painful; thus the administration of anaesthesia is recommended to decrease those negative effects. However, anaesthesia has a direct risk of provoking death, but sedation is less risky than anaesthesi
Externí odkaz:
https://doaj.org/article/af46eb698de8477ab3d49191892784a7
Publikováno v:
Animal, Vol 11, Iss 2, Pp 285-294 (2017)
Low pasture allowance during gestation affects ewes’ BW at parturition, the bond with their lamb, lamb development, and thus also may affect their responses to weaning. The objectives were to determine if native pasture allowance from before concep
Externí odkaz:
https://doaj.org/article/f214221d82b64269bb62805570f8bc51
Publikováno v:
Animal, Vol 10, Iss 11, Pp 1871-1876 (2016)
Early weaning may be used in beef cattle production to improve reproduction rates in range conditions. However, weaning causes a stress response in cows, which may be especially strong in early weaning management, as the bond between the cow and the
Externí odkaz:
https://doaj.org/article/8a10d8f53d494bf38ffdeb21103defa9
Publikováno v:
Animal, Vol 7, Iss 8, Pp 1367-1373 (2013)
Abrupt weaning, a usual management in sheep productive systems, may provoke behavioural and physiological responses indicative of stress in ewes and lambs. Progesterone (P4) has anxiolytic and sedative effects through the union of its metabolites tha
Externí odkaz:
https://doaj.org/article/a65fda95a24d4c8693a5396bf348146d