Reproduction in Goats

Sánchez-Dávila, Fernando; González, Alejandro Sergio del Bosque; Barragán, Hugo Bernal

doi:10.5772/intechopen.70003

Cited by 5 publications

(3 citation statements)

References 39 publications

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“…Spermatozoa remained viable for only 12 hours in the female reproductive tract, and the life span of the ovulated egg was limited to 12-24 hours (Yanagimachi, 2022). Estrus in goats lasted around 24-48 hours, in an average of 36 hours (Dávila et al, 2018). Ovulation could occur 9-72 hours after the onset of estrus.…”

Section: Discussionmentioning

confidence: 99%

Intracervical Artificial Insemination using Frozen Semen of Boer buck on Pote Does at Different Times of Estrus

Susilowati,

Tri Wahyu Suprayogi,

Tatik Hernawati

et al. 2023

Ovz

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Pote goats are kept by the rural community in Bangkalan Regency, Madura Island, Indonesia. Estrus symptoms in goats are usually unclear, causing low fertility. This study aimed to determine the intracervical artificial insemination at early and mid-estrus on the Pote does. The 24 the does were randomly divided into two groups and estrous synchronization with PGF2α of 200 µg intramuscularly, twice injections with 11 days intervals. The T1 groups of estrus the Pote does were inseminated at early estrus (0-12 hours). Meanwhile, T2 groups of estrus the Pote does were inseminated at mid-estrus (12-24 hours after signs of estrus appeared. The insemination conducted artificially using post-thawed Boer semen. The observed variables were non-return rate at day 21 post-insemination (NRR21), and pregnancy rate (PR) based on abdominal palpation diagnosis. The result showed that post-thawed Boer buck was qualified (sperm motility more than 40%) for artificial insemination. All of the Pote does were estrus after twice PGF2α intramuscular injection with 11 days intervals. The onset of estrus was 48-72 hours after the second injection PGF2α. The NRR21 and PR ranged from 66.66-100% and 37.50-66.66%, respectively. The NRR21 and PR of the T2 group were higher than those of the T1 group. It could be concluded that intracervical artificial insemination on Pote the does at mid-estrus were more effective, resulting in higher NRR21 and PR than those at early estrus.

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Section: Discussionmentioning

confidence: 99%

Intracervical Artificial Insemination using Frozen Semen of Boer buck on Pote Does at Different Times of Estrus

Susilowati,

Tri Wahyu Suprayogi,

Tatik Hernawati

et al. 2023

Ovz

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“…The period of a female's life known as puberty marks the appearance of the first oestrus symptoms, which in nonpregnant animals indicate the start of cyclic ovarian activity (Greyling, 2000;García et al, 2023). Goats begin to go through puberty at the age of five months (Dávila et al, 2017). Both internal and external variables can affect a goat's age during puberty (Lestari and Ismudiono 2014).…”

Section: Age Of Pubertymentioning

confidence: 99%

Reproductive performance of local goats in Municipality of Liquica

Freitas,

Amaral

et al. 2024

World J. Biol. Biotechnol.

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One of the small ruminants with a lot of promise and popularity in the Municipality of Liquica are kacang goats. The purpose of this study is to determine how well the local goats in Liquica Municipality reproduce. In this study, a quantitative approach was taken. The research location was chosen using the purposive sampling method. The criterion of having at least three goats and five years of experience with them were used to choose the responders for this study. Solvin's formula was employed to ascertain the sample size. The variables that were observed were the kidding interval, size of the litter, length of pregnancy, and age at puberty. The findings demonstrated that the local goats in Tibar Village had good reproductive performance. Of the 71 respondents, they reported that the average age at puberty was 6.51 ± 0.65, the average gestation period was 5.08 ± 0.28, the average litter size was 1.08 ± 0.36, and the average calving interval was 8.86±0.59. Ulmera Village respondents, numbering seventy, stated that the local goats' puberty age was 7.84 ± 0.93, their gestation period was 5.09 ± 0.28, their litter size was 1.6 ± 0.48, and their calving interval was 8.56 ± 0.53. In Liquisa Municipality, the reproductive performance of Javanese goats is deemed satisfactory despite farmers' continued adherence to customary rearing practices.

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“…proestrus, estrus, metestrus, and diestrus. The reproductive system begins to prepare for ovulation in the proestrus phase (Dávila et al, 2017). The metestrus phase is showed by the sudden cessation of the estrus phase, and the diestrus phase, shows the development of corpus luteum and progesterone production (Ismudiono et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Serum Progesterone profile of pregnant Ettawa crossbred does at day-0, -21, -42, -63 and -84

Bellani

Ismudiono

Hariadi

et al. 2021

Ovz

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This study aimed to determine the progesterone concentrations of Ettawa crossbred does at day-0, -21, -42, -63, and -84 after mating. Five Ettawa crossbred does were injected with PGF2α twice with an interval of 11 days for estrous synchronization followed by natural mating on day-3 after the second PGF2α injection. Blood was collected through the jugular vein for the measurement of serum progesterone concentrations using ELISA, whereas pregnancy was diagnosed at 90 days after mating by abdominal palpation. The results showed that all does were on estrus onthethird day after the second PGF2α, three of them diagnosed to be pregnant following mating. The progesterone concentration at day-0 was 1.52 ± 0.33 ng/mL, increased (p <0.05) to 7.08 ± 1.02 and 5.50 ± 2.82 ng/mL at day-21 and day-42, and increased (p <0.05) again to 12.01 ± 5.30 and 12.04 ± 0.30 ng/mL at day 63 and day 84, respectively. There was no significant difference in progesterone concentrations between day 21 and day 42 and between day 63 and day 84. It could be concluded that there was a biphasic increase of progesterone concentrations of the pregnant Ettawa crossbred does, i.e. from day-0 to day-21/day-42 and from day-21/day-42 to day-63/day-84.

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Reproduction in Goats

Cited by 5 publications

References 39 publications

Intracervical Artificial Insemination using Frozen Semen of Boer buck on Pote Does at Different Times of Estrus

Intracervical Artificial Insemination using Frozen Semen of Boer buck on Pote Does at Different Times of Estrus

Reproductive performance of local goats in Municipality of Liquica

Serum Progesterone profile of pregnant Ettawa crossbred does at day-0, -21, -42, -63 and -84

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