Gayo horse reproduction performance as local animal genetic resources in Southeast Aceh, Aceh Province

Abstract

The objective of this research was to analyze the reproductive performance of the Gayo horse as an animal genetic resources in Southeast Aceh. This research has conducted in Southeast Aceh. The study used a survey method. The choice of research location has done intentionally (purposive sampling). The total population of Gayo horses scattered in Southeast Aceh currently is 102 tails and the number of samples taken in this study is 24 individuals with the minimum requirement that respondents keep horses that have at least given birth 2 times. The required data in this study were the reproductive performance characteristics of Gayo horses including (1) estrus cycle, (2) length of time in estrus, (3) first mating age, (4) gestation period, (5) foaling interval and (6) postpartum mating. The data obtained from this research that the average length of estrus cycle in the range of 21-25 days with an average of 22.58±1.18 days, the length of time in estrus varied in the range of 4-17 days with an average 8.92±3.35 days, while age at first mating ranged from 24-36 months with an average of 30.25±5.15 months, furthermore gestational age had an average of 333.63±4.83 days with a range of 326-345 days, foaling interval is 470,25±11.86 days with a range of 458-480 days and postpartum mating an average of 136.63±7.03 days with a range of 122-150 days. The data obtained identified that the reproductive performance of Gayo horses in Southeast Aceh Regency is in normal condition.

Identification of reproduction performance of Thoroughbred and Gayo horses in Bener Meriah Regency, Aceh Province, Indonesia

“…The results obtained are different from the previous research [7] which stated that postpartum mortality in Gayo horses was 136.63 ± 7.03 days. In this case, the postpartum mating age obtained is still very far from normal postpartum.…”

“…According to previous research project [8], duration of estrous depends on the type of species and varies from one another within the same species, and is related to the time of ovulation, which in horses is 4-6 days after the start of estrous or 1-2 days before estrous. Furthermore, another study [7] stated that the duration of estrous for Gayo horse is 8.92 ± 3.35 days. In this case, the duration of estrous is the time interval between the start of estrous and the end of the estrous period.…”

“…These results are similar to the results of previous research [6] which found that the estrous duration of horses lasts 22 days. Furthermore, another study [7] added that the estrous cycle in Gayo horses is 22.58 ± 1.18 days. One of the internal factors that affect estrous is the horse's age.…”

“…The results of this study are different from previous research [13] that the average gestation period of Gayo horses and Thoroughbred horses in Southeast Aceh District is 347.53 ± 14.96 days and 318.95 ± 9.47 days. Furthermore, it was also added that the gestation period for Gayo horses was 333.63 ± .83 days [7]. Differences in gestation between Gayo horses and Thoroughbred horses can be influenced by the rearing system and the sex of the children they have.…”