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At least 1,207 records · Page 67Linked to original sources
PubMed2004

Effect of isoflavones on reproductive performance, testosterone levels, lipid peroxidation, and seminal plasma biochemistry of male rabbits.

The objective of this study was to determine the effect of either 2.5 mg/kg Body Weight or 5 mg/kg Body Weight (BW) doses of isoflavones on semen quality, testosterone levels, lipid peroxidation and semen biochemistry of male New Zealand White rabbits. Animals were given both 2.5 mg/kg BW and 5 mg/kg BW doses of isoflavones. The tested doses were given to rabbits orally every other day for 13 weeks. Treatment with isoflavones caused an increase (p < 0.05) in libido (by decreasing the reaction time), sperm concentration, sperm motility (%), total motile sperm per ejaculate (TMS), packed sperm volume (PSV), total functional sperm fraction (TFSF), total sperm output, initial fructose concentration and normal sperm, while dead sperm was reduced compared to control animals. On the other hand, ejaculate volume, initial hydrogen ion concentration (pH) and plasma testosterone levels did not change in treated animals with both doses of isoflavones as compared to control. Concentrations of thiobarbituric acid-reactive substances (TBARS), total lipids, and low density lipoprotein were significantly (p < 0.05) reduced in seminal plasma of rabbits treated with either 2.5 mg/kg BW or 5 mg/kg BW doses of isoflavones. While, the activities of glutathione S-transferase (GST), lactate dehydrogenase (LDH), aspartate aminotransferase (AST), alanine aminotransferase (ALT), acid phosphatase (AcP), and alkaline phosphatase (AlP) were significantly (p < 0.05) increased in seminal plasma of treated animals. Also, total cholesterol, percentage cholesterol (out of total lipids), and high density lipoprotein were significantly (p < 0.05) increased, while triglyceride did not change in seminal plasma of treated animals. Supplementation at either level of isoflavones did not cause changes in live body weight (LBW), dry matter intake (DMI), and relative weights of testes and epididymis. The present results showed that either 2.5 mg/kg BW or 5 mg/kg BW doses of isoflavones caused an improvement of some semen characteristics and did not have negative effects on male fertility.

Administration, Oral↗
PubMedDate not supplied

Effect of a live reovirus vaccine on reproductive performance of broiler breeder hens and development of viral tenosynovitis in progeny.

A live commercial reovirus vaccine, Enterovax, was administered to adult broiler breeder hens via the drinking water to determine its efficacy in stimulation of circulating antibody. This vaccine was compared with a commercial inactivated reovirus vaccine. Only the inactivated product resulted in increased antibody as measured by a commercial enzyme-linked immunosorbent assay. However, the live reovirus vaccine caused diarrhea in the hens and decreased eggshell quality, fertility, and hatchability. In addition, the live vaccine virus was vertically transmitted from hens to their progeny, resulting in increased embryonic mortality and viral tenosynovitis.

Administration, Oral↗
PubMed1991

Recurrent spontaneous abortion--aetiological factors and subsequent reproductive performance in 76 couples.

A diagnostic screening programme identified a possible aetiological factor in 32 of 76 couples (42%) evaluated for recurrent spontaneous abortion (three or more consecutive abortions). The abnormalities most commonly observed were endocervical infections (18%), cervical incompetence (11%) and uterine abnormality (9%). Hypothyroidism was present in 3 women and chromosomal abnormality in 2. None were positive for lupus anticoagulant. Treatment of uterine abnormality and cervical incompetence was associated with 75% and 86% success rates, respectively, whereas treatment of infective causes resulted in a 44% successful pregnancy rate, much the same as the 42% rate that occurred in women who had not been thus treated.

Abortion, Habitual↗
PubMed1991

Reproductive performance in women with complete septate uteri.

Of 11 women with a diagnosis of complete septate uterus, 7 did not undergo any surgical correction, whereas 4 underwent metroplasty. The diagnosis was made in eight cases (73%) for reasons not related to the anomaly. In only three cases did the patients present with infertility complaints. Eight patients, one of whom was subsequently treated, had a total of 13 pregnancies, 3 (27%) of which ended in abortion, 4 (31%) in premature delivery and 6 (42%) in term births, for a live birth rate of 61.5%. The cumulative pregnancy rate was 80% at 12 months. The cumulative probability of carrying a pregnancy to term and giving birth to a live infant was 75% and 88%, respectively, for the second pregnancy. After metroplasty one patient still did not conceive, while three had a total of five pregnancies, one of which ended in abortion and four at term, for a live birth rate of 80%. With a complete septate uterus the ability to conceive is preserved, and the gestational ability is impaired only moderately. Metroplasty, if indicated, can yield good results in terms of the live birth rate.

Abortion, Spontaneous↗
PubMed1989

Photoperiod and thermal effects on the productive and reproductive performance of Ross Tented egg-type and Hubbard broiler chicks living under subtropical conditions.

In egg-type pullets, the body weight was significantly higher under constant 20 L:4 D and 10 L:14 D up their 72nd day of age (d), followed by 20 L:4 D, than in the control (10 L:14 D). The latter variant positively affected the liveweight gain and earlier sexual maturity. Constant 20 L:4 D also increased earlier sexual maturity, plasma corticoid content of the blood, and egg number significantly over the control. Egg number was also ensured and stimulated by 10 L:14 D up to the 72nd d and their 20 L:4 D. In the treatment 20 L:4 D changed to 10 L:14 D maturity and egg number decreased significantly. Reduction of the 20 L:4 D d in steps of 2 h/week to 10 L:14 D on the 49th day resulted in a significant increase in egg number and liveweight. Reversing this light regime reduced both features. Under elevated temperature (3 to 5 K above normal) this reduction was postponed to the 11th d and following. The elevated temperature increased significantly the carcass traits, except the flack, neck, and abdominal fat. The combination of the light and temperature regime did not yield any significant differences for the carcass weight at conventional temperatures and for the body weight.

Adrenal Cortex Hormones↗
PubMedDate not supplied

Reproductive performance following active management of diabetic pregnancies at the University College Hospital, Ibadan, Nigeria.

This article presents a report of the first 5 years of an active approach to the management of diabetic pregnancies at the University College Hospital, Ibadan. During this period the incidence rate of diabetic pregnancy was 0.64 per 1000 deliveries per year. The mean birthweight (3.40 +/- 1.68 kg) of babies whose mothers had good diabetic control was lower than the mean birthweight (4.19 +/- 1.05 kg) of babies born to mothers with poorly-controlled diabetes. The difference was however not statistically significant (P less than 0.5). Whilst the overall perinatal mortality rate was 10.8%, there was a statistically significant difference in the perinatal mortality associated with poor control of diabetes (42.9%) when compared with good control (0.0%): P less than 0.02. The authors conclude that earlier booking in pregnancy, stricter control of diabetes by multiple insulin injections and improved cooperation of the patients will in future help to lower the perinatal mortality rate associated with diabetic pregnancy.

Adult↗
PubMed1988

Short-term changes in serum luteinizing hormone, ovarian response and reproductive performance following gonadotrophin releasing hormone treatment in postpartum dairy cows with retained placenta.

Thirty-six postpartum Holstein cows consisting of eighteen cows that shed the placenta soon after calving (NRP) and eighteen cows that retained placenta greater than 24 h (RP) were used. There were four treatment groups. Group I consisted of 9 NRP cows which received intramuscular injection of sterile saline on day 15 postpartum. The second group consisted of 9 NRPN cows which received 100 micrograms of gonadotrophin releasing hormone on day 15 postpartum (NRPT). The third group consisted of 9 RP cows which received saline on day 15 postpartum (RPN) and the fourth group consisted of 9 RP cows which received 100 micrograms of gonadotrophin releasing hormone on day 15 postpartum (RPT). Blood samples were collected once daily during the first month and once every other day during the second month postpartum. In addition fourteen cows (RPT, n = 7; NRPT, n = 7), were used to study short-term changes in serum luteinizing hormone concentrations following gonadotrophin releasing hormone treatment on day 15 postpartum. Blood samples were obtained from these cows every 15 min during 1 h before and 6 h after gonadotrophin releasing hormone administration. Sera from all samples were assayed for progesterone and luteinizing hormone concentrations. Starting from four days after calving rectal palpations and ultrasound examinations of the ovaries were carried out once every four days until day 28 postpartum in order to monitor ovarian changes. All cows were inseminated on the first estrus after day 60 postpartum and examined for pregnancy between 35 and 42 days after insemination.(ABSTRACT TRUNCATED AT 250 WORDS)

Animals↗