The relationship of semen quality to pregnancy rate and litter size following artificial insemination in the bitch

1993 ◽  
Vol 39 (2) ◽  
pp. 553-560 ◽  
Author(s):  
W.D. Mickelsen ◽  
M.A. Memon ◽  
P.B. Anderson ◽  
D.A. Freeman
2019 ◽  
Vol 20 (1) ◽  
pp. 119
Author(s):  
Langgeng Priyanto ◽  
Agung Budiyanto ◽  
Asmarani Kusumawati ◽  
Kurniasih Kurniasih

The relationship among of sperm DNA damage in cows with pregnancy rates has not been widely studied. The purpose of this study to determine the relationship of sperm DNA damage with pregnancy rate on Brahman cows. The sperm DNA damage rate was measured by Sperm-BosHalomax® from 2 samples of male Brahman bull straw (40002 and 40885) and pregnancy rate was measured from the success rate of artificial insemination. In 14 female Brahman cows divided into two groups. One group of 7 in the artificial insemination with 40002 males with 37.11% sperm DNA damage and one in artificial insemination with 40885 with 10.65% sperm DNA damage. The data obtained were analyzed descriptively by comparing sperm DNA damage with pregnancy rate. The results showed that at 37.11% sperm DNA damage level was found pregnancy rate 57.11% with ultrasound on 30 day and pregnancy rate 42.80% with ultrasound to 45 day. Result of research on sperm DNA damage level of 10.66% found pregnancy rate 57.11% with ultrasound to 30 day and level pregnancy 57.11% with ultrasound 45 days. The results of this study have concluded that there is a difference in the rate of sperm DNA damage with pregnancy rate in Brahman cows. The sperm DNA damage has an effect on pregnancy rate on Brahman cows.  


1997 ◽  
Vol 48 (5) ◽  
pp. 865-871 ◽  
Author(s):  
F. López-Gatius ◽  
J. Labèrnia ◽  
P. Santolaria ◽  
J. Rutllant ◽  
M. López-Béjar

Author(s):  
Julia Kardin ◽  
Dasrul Dasrul ◽  
Sugito Sugito ◽  
Nurliana Nurliana ◽  
Teuku Zahrial Helmi

The purpose of this research was to identify the relationship of characteristic and knowledge of farmers to the successful of artificial insemination (AI) in Aceh Besar Districts. The number of respondents is 93 people from twenty three districts in Aceh Besar, selected purposively as the sample of this research. The instruments used in this research are questionnaire and direct observation in the field, while the observed variables are: farmer characteristics, farmer knowledge and artificial insemination result. The results of this research revealed that the characteristics and knowledge of the farmers were good and showed a real relationship to the successfulness of AI in Aceh Besar Districts. The average service per conception (S / C) in Aceh Besar Districts during 2017 was 1.32 while the conception rate (CR) was 86.36%. The results were in accordance with the standard of general guidance of Upsus Siwab Year 2017.


1991 ◽  
Vol 71 (1) ◽  
pp. 237-239 ◽  
Author(s):  
P. A. Thacker ◽  
A. D. Gooneratne ◽  
R. N. Kirkwood

Pregnancy rates and litter sizes following insemination of sows with fresh-extended and frozen-thawed semen averaged 71 vs. 53% and 10.6 vs. 4.4, respectively, and was not affected by the addition of 12.5 μg relaxin to semen. These results indicate no relaxin mediated effect on either pregnancy rate or litter size when sows are artificially inseminated with relaxin-supplemented semen. Key words: Artificial insemination, relaxin, sows


2020 ◽  
Vol 9 (2) ◽  
pp. 35
Author(s):  
Yendraliza Yendraliza ◽  
Muhamad Rodiallah ◽  
Zumarni Zumarni

This study was conducted to determine the relationship of birth weight of calves, sex ratio of the calves, and the age of the dam to the length of pregnancy in buffaloes resulting from artificial insemination in Kampar District. The method used in this research is the descriptive method by displaying the average and standard deviation. The total number of buffaloes that were artificially inseminated in 2018 and gave birth in 2019 was 21 buffalo-cows. Data were analyzed with the Pearson Product Moment (PPM) correlation. The parameters measured in this study were the length of pregnancy, calf birth weight, calf sex ratio, and dam’s age. The results showed a positive correlation between the birth weight of the calves, sex ratio of the calves, and the age of the dam to the length of pregnancy of 1.4%, with an average length of pregnancy, calf birth weight, and sex ratio of 351.81 days, 27.38 kg, and 1: 1 respectively.


1953 ◽  
Vol 43 (3) ◽  
pp. 256-259 ◽  
Author(s):  
R. C. Campbell

1. The relationship of semen age to conception rate was studied at two artificial-insemination centres and a subcentre of one of these. Data relating to 50,213 first inseminations were included in the analysis.2. It is shown that external conditions can affect the rate of decrease of conception rate with semen age.3. Records giving c.r.'s for each day of semen age may reveal centre differences that cannot be detected in records giving mean c.r.'s only.4. Information may be lost if data are grouped by months rather than recorded by collections.5. The rate of decrease should not be used for comparing centres until the various factors affecting it (e.g. breed differences) are more fully understood. Further investigations should not be limited to one centre.


2021 ◽  
Vol 5 (3) ◽  
pp. 232
Author(s):  
Dhea Hesty Purwaningrum ◽  
Sri Ratna Dwiningsih ◽  
Sulistiawati Sulistiawati

AbstractBackground: Infertility in developing countries is higher at 30% compared to developed countries at 5-8%. The factors that influence infertility are maternal (women) age and sperm factors. Therapy in handling infertility in the form of Assisted Reproductive Technology (ART) with one of them is Intrauterine Insemination (IUI). The success rate of IUI is the percentage of IUI programs that give results as desired depending on the type of calculation used such as pregnancy rate or live birth rate. Method: This research is a literature review. The research question with PICO standard is "What is relationship between woman's age and sperm quality with the success of Intrauterine Insemination?". 70 literatures were obtained from Cochrane, Sciencedirect, PubMed, and google scholar databases. Literature screening was done by looking at the inclusion and exclusion criteria that have been set, so that 7 literature will be reviewed.  Results: From all the literature on the relationship of woman's age with the pregnancy rate in the IUI process stated that there was a significant relationship between the age of the woman with the success of IUI. Most of literature (75%) on the relationship of sperm quality with pregnancy rates in the IUI process states that there is a relationship between sperm quality and the success of IUI. The percentage of pregnancies in the IUI program can reach more than 10% with a sperm concentration >10x106/ml. Conclusion: From a review of 7 literature, the age of women who are ideal for IUI is 20-35 years with a pregnancy of  20%. In a sperm concentration >10x106/ml and sperm morphology ≥ 5% can get >10% pregnancy rate, and a pregnancy rate of >8% on sperm motility ≥ 75%.


Reproduction ◽  
2007 ◽  
Vol 133 (1) ◽  
pp. 297-307 ◽  
Author(s):  
D S Gardner ◽  
P J Buttery ◽  
Z Daniel ◽  
M E Symonds

Knowledge of factors affecting variation in birth weight is especially important given the relationship of birth weight to neonatal and adult health. The present study utilises two large contemporary datasets in sheep of differing breeds to explore factors that influence weight at term. For dataset one (Study 1;n=154 Blue-faced Leicester×Swaledale (Mule) and 87 Welsh Mountain ewes, 315 separate cases of birth weight), lamb birth weight as the outcome measure was related to maternal characteristics and individual energy intake of the ewe during specified periods of gestation, i.e. early (1–30 days; term ~147 days gestation), mid (31–80 days) or late (110–147 days) pregnancy. For dataset two (Study 2;n=856 Mule ewes and 5821 cases of birth weight), we investigated using multilevel modelling the influence of ewe weight, parity, barrenness, lamb sex, litter size, lamb mortality and year of birth on lamb birth weight. For a subset of these ewes (n=283), the effect of the ewes’ own birth weight was also examined. Interactions between combinations of variables were selectively investigated. Litter size, as expected, had the single greatest influence on birth weight with other significant effects being year of birth, maternal birth weight, maternal nutrition, sex of the lamb, ewe barrenness and maternal body composition at mating. The results of the present study have practical implications not only for sheep husbandry but also for the increased knowledge of factors that significantly influence variation in birth weight; as birth weight itself has become a significant predictor of later health outcomes.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 111-111
Author(s):  
Kara R Stewart ◽  
Brad Belstra ◽  
Kilby L Willenburg ◽  
Domingo Gómez-López ◽  
Robert V Knox

Abstract Induced ovulation with single fixed time artificial insemination (SFTAI), combined with uterine (IUI) or deep uterine insemination (DUI), could improve fertility with low numbers of sperm and allow greater use of high genetic merit boars. At weaning (0 h), sows (n = 534) were assigned by parity and estrus induction method (eCG or Control) to receive 1200 × 106 sperm by IUI, 600, 300, or 150 × 106 sperm by IUI or DUI, or 75 × 106 sperm by DUI. At 80 h post weaning, sows received OvuGel and 26 h later a pooled semen SFTAI. Ultrasound was performed to determine follicle size and time of ovulation (OV). Sows were slaughtered 27 d after AI to determine pregnancy and litter traits. There was no effect (P > 0.05) of eCG on estrus (93%) within 5 d of weaning or follicle size (6.1 mm) at OvuGel, but wean-to-estrus (3.8 vs. 4.0 d,P < 0.01) and AI-to-OV (15.9 vs. 17.0 h, P = 0.04) intervals and AI-to OV were slightly reduced. eCG did not affect pregnancy rate (78.6%), number of CL (21.7), or number of viable embryos (12.2). There was no effect of number of sperm or site of insemination (P > 0.05) on pregnancy rate (range: 80.9% to 70.5%), but AI occurring after ovulation reduced pregnancy rate (P < 0.02). Total number of embryos (range: 16.5 to 10.3) increased with CL number (P < 0.001) but was not affected by number of sperm or site of insemination (P > 0.05). Higher sperm treatments (1200 and 600 x 106) had more embryos compared to lower sperm treatments (P < 0.01), suggesting that lower sperm numbers effects litter size more than the pregnancy status. Acceptable fertility can be achieved with low sperm numbers when using SFTAI and uterine deposition, but AI-to-OV interval and ovulation rate influence final fertility.


1988 ◽  
Vol 60 (6) ◽  
pp. 585-590
Author(s):  
J. B. Owen ◽  
I. AP Dewi

The Cambridge breed has been developed since 1964, based on a foundation group of 54 ewes representing 11 breeds mated initially to seven Finnsheep rams. Data presented show that a high litter size(LS) has been established (mean 2.8 in 3 year old ewes) by a policy of selection coupled with minimising generation interval. Observations on ovulation rate (OR)show a large range (1—13) and are consistent with an hypothesis that OR is influenced by a major gene effect superimposed on a basal level of about 2.5 ova. The gene appears to increase ovulation by about two ova per copy and to have a frequency approaching 0.3 in the Bangor University flock. Data on the relationship of LS at birth and of lambs weaned per ewe are presented which indicate that under ideal conditions the optima for OR and LS at birth cannot exceed 5 and 3.5 respectively for mature ewes. The practical utilisation of the breed as a dam-line sire of crossbred ewes show that the Cambridge crossbreds are more precocious, more prolific, have slower growing lambs with carcasses of similar quality to the corresponding Border Leicester crosses. Overall superiority inefficiency of feed utilisation is about 20 %. Methods of genotyping sheep and utilising the major gene in practice are discussed.


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