garcía-casillas, arturo césar prado-rebolledo, omar francisco carrillo-díaz, maría isabel zepeda-batista, josé luis barajas-saucedo, carlos eduardo hernández-rivera, juan augusto
An experiment was carried out to evaluate the effect of spring and autumn seasons on the reproductive activity of Merino Socorro Island ewes and their crosses with Pelibuey under heat stress (HS) conditions in the tropics. All ewes (n = 80) were randomly assigned to one of two breeds during the first and second periods, respectively: (1) Twenty Soc...
de rensis, fabio dall’olio, eleonora gnemmi, giovanni maria tummaruk, padet andrani, melania saleri, roberta
This review describes the oestrus-to-ovulation interval, the possibility of predicting the time of ovulation, and the optimum time for insemination relative to oestrus in dairy cows. The duration of oestrus in dairy cows is approximately 8–20 h, with differences possibly related to the methods of oestrus detection and the frequency of observations....
Koyama, Keisuke Kubo, Tomoaki Koyama, Takeshi Takahashi, Yoshiyuki
Published in
Reproduction in domestic animals = Zuchthygiene
The aim of this study was to investigate the relationship between parity and the optimal insemination-ovulation interval (IOI) in lactating dairy cows, as well as the relationship between the optimal timing of artificial insemination (AI) based on the onset of oestrus and parity. A total of 183 postpartum lactating Holstein cows participated in the...
Vincent, Kathleen F Mallari, Olivia G Dillon, Emmaline J Stewart, Victoria G Cho, Angel J Dong, Yuanlin Edlow, Andrea G Ichinose, Fumito Xie, Zhongcong Solt, Ken
...
Published in
British journal of anaesthesia
Although sex differences in anaesthetic sensitivity have been reported, what underlies these differences is unknown. In rodents, one source of variability in females is the oestrous cycle. Here we test the hypothesis that the oestrous cycle impacts emergence from general anaesthesia. Time to emergence was measured after isoflurane (2 vol% for 1 h),...
axnér, eva
In short-day breeders such as the sheep, melatonin stimulates oestrus activity; in contrast, a high serum concentration of melatonin inhibits oestrus in long-day breeders such as the cat. Therefore, implants with melatonin have been used to suppress or induce oestrus depending on the species. The aim of this pilot study was to evaluate if melatonin...
stachurska, anna kędzierski, witold kaczmarek, beata wiśniewska, anna żylińska, beata janczarek, iwona
The behaviour of oestrous mares is well-known in horse breeding. However, alterations in their physiological and behavioural indices during the whole oestrous cycle are scarcely known. The objective of the study was to analyse changes in cardiac activity variables, rectal and superficial temperatures, behaviour towards humans and conspecifics, and ...
Da Costa, Rosa E P Kinsman, Rachel H Owczarczak-Garstecka, Sara C Casey, Rachel A Tasker, Séverine Knowles, Toby G Woodward, Joshua L Lord, Michelle S Murray, Jane K
Published in
The Veterinary record
Surgical neutering of dogs is common, however the average age that dogs reach sexual maturity, are neutered, and dog owners' attitudes to neutering in the UK and the Republic of Ireland have not been explored in a longitudinal study. Owner-reported data on the timing of the first oestrus, timing of neutering and the reasons given for neutering dogs...
Flock, Ulrike Fischer, Stine Weeger, Jasmin Reese, Sven Walter, Beate
Published in
Journal of feline medicine and surgery
Ovarian remnant syndrome (ORS) is suspected when heat signs occur in spayed individuals, but further diagnostic procedures are necessary to exclude other possible oestrogen sources, such as the adrenal gland or exogenous supplementation. Anti-Müllerian hormone (AMH), secreted by granulosa cells or Sertoli cells, serves to differentiate sexually int...
Brill, George Kartal, Tamara Yadav, Dev Prakash Bhyan, Mukesh Patel, Chirag Sheoran, Shiv Kumar Patel, Piyush Painuly, Bimmy Chaudhari, Amit
Published in
Frontiers in Veterinary Science
Understanding seasonal breeding dynamics is essential for maximizing efficiency and welfare in the application of street dog management programs. Humane Society International (HSI) has conducted many animal birth control programmes concerning the street dog populations in urban India. This paper analyses the data on reproductive indicators—oestrus,...
Huo, Shengdong Chen, Zhou Li, Shuyuan Wang, Jine Ma, Junyuan Yang, Yanmei Zhaxi, Yingpai Zhao, Yongqing Zhang, Derong Long, Ruijun
...
Published in
Reproduction in domestic animals = Zuchthygiene
Post-partum ovarian cycle arrest is the main factor affecting yak reproductive efficiency. There are few reports regarding the molecular regulatory mechanism of post-partum oestrus at transcriptome and proteome levels in yaks. Our previous studies focussed on the ovaries of yaks with post-partum ovarian cycle arrest and post-partum oestrus yaks. In...
