SUCCESSFUL CONTRACEPTION IN A HERD OF CHINESE GORAL (NEMORHAEDUS GORAL ARNOUXIANUS) WITH MELENGESTROL ACETATE

2000 ◽  
Vol 31 (2) ◽  
pp. 228-230 ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 130-145
Author(s):  
Ellen Williams ◽  
Anne Carter ◽  
Jessica Rendle ◽  
Samantha J. Ward

Prolonged and repetitive COVID-19 facility closures have led to an abrupt cessation of visitors within UK and Irish zoos for variable periods since March 2020. This study sought to increase understanding of the impact of closures and reopenings on animal behaviour, thereby broadening understanding of whether zoo animals habituate to visitors. Data were collected from June to August 2020 at two UK facilities on eight species (n = 1 Chinese goral, n = 2 Grevy’s zebra, n = 11 swamp wallaby, n = 2 Rothschild’s giraffe, n = 2 nyala, n = 4 Chapman’s zebra, n = 2 snow leopard and n = 3 Amur leopard). Behaviour change and enclosure use was variable across species but most changes were non-significant. Grevy’s zebra engaged in more comfort behaviour during closure periods than post-closure (p < 0.05). Chinese goral engaged in more environmental interactions during closure periods (p < 0.05). Grevy’s zebra spent longer than would be expected by chance closest to public viewing areas during closure periods (p < 0.008). These results suggest variable impacts of covid-19 closures and reopenings, mirroring human-animal interaction literature. We highlight the potential for some species to take longer to re-habituate to the presence of zoo visitors. As facility closures/reopenings are ongoing, we advocate a longitudinal monitoring approach. Furthermore, we recommend incorporation of physical and physiological measures of welfare where possible, alongside behavioural responses, to enable a holistic approach to answering fundamental questions on whether zoo animals habituate to visitors.


1989 ◽  
Vol 67 (8) ◽  
pp. 1895 ◽  
Author(s):  
D. J. Patterson ◽  
G. H. Kiracofe ◽  
J. S. Stevenson ◽  
L. R. Corah

2009 ◽  
Vol 87 (6) ◽  
pp. 1981-1990 ◽  
Author(s):  
O. G. Sá Filho ◽  
D. J. Patterson ◽  
J. L. M. Vasconcelos

2004 ◽  
Vol 82 (3) ◽  
pp. 867-877
Author(s):  
J. M. DeJarnette ◽  
R. B. House ◽  
W. H. Ayars ◽  
R. A. Wallace ◽  
C. E. Marshall

1968 ◽  
Vol 16 (3) ◽  
pp. 486-491 ◽  
Author(s):  
L. F. Krzeminski ◽  
A. W. Neff ◽  
A. M. Thornton

2005 ◽  
Vol 28 (1) ◽  
pp. 25-27 ◽  
Author(s):  
C. A. Gimenez Diaz ◽  
E. Emsen ◽  
F. Koycegiz ◽  
B. Emsen ◽  
M. Yaprak ◽  
...  

1973 ◽  
Vol 17 (2) ◽  
pp. 163-168
Author(s):  
L. J. Boyd ◽  
G. F. Smith ◽  
P. D. P. Wood ◽  
J. Craven ◽  
D. R. Melrose ◽  
...  

SUMMARYTwo field trials were conducted to evaluate oestrus synchronization under farm conditions and to determine if increased sperm numbers per insemination would enhance fertility at the first synchronized oestrus. One hundred and seventy-seven previously unmated British Friesian females in 6 dairy herds and 236 suckler cows in 9 beef herds were used. Treated animals received 1·0 mg melengestrol acetate (MGA) daily for 14 days. Treated and control animals were inseminated with either 15 or 60 million sperm per first insemination.Oestrus was synchronized in 94% of the treated dairy heifers and 66% of the treated suckler cows. Oestrus detection by herdsmen appeared to be much less precise in suckler herds than in the dairy herds.First inseminations were given during a 21-day breeding period (commencing at withdrawal of MGA) to 97% of treated and 79% of control dairy heifers (P<0·01), and to 77% of the treated and 69% of the control suckler cows (P>0·05). On an average, first inseminations were given 10 days earlier to treated heifers and 7 days earlier to treated suckler cows than to their control counterparts. The 45-day non-return rate to first inseminations was 81% for control and 41% for treated dairy heifers (P< 0·001) and 69% for control and 46% for treated suckler cows (P>0·05).Oestrus-synchronized animals required significantly more services than control animals during a 30-day breeding period. However, there was no difference between treated and control animals in the non-return rate to one or more services given during the prescribed 30-day breeding period.Insemination with 15 or 60 million live sperm had no effect on the non-return rate of treated or control animals.


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