THE INFLUENCE OF ALLYL TRENBOLONE ON THE OCCURRENCE OF NORMAL ESTROUS CYCLES FOLLOWING A GONADOTROPHIN-INDUCED OVULATION IN PREPUBERTAL GILTS

1989 ◽  
Vol 69 (4) ◽  
pp. 1091-1093 ◽  
Author(s):  
T. A. VAN LUNEN ◽  
R. N. KIRKWOOD ◽  
P. A. THACKER
Keyword(s):  
Key Words ◽  
Estrous Cycles ◽  
Induced Ovulation ◽  
Effect Of Treatment ◽  
Estrous Behavior

Sixty prepubertal Yorkshire × Landrace gilts were either injected with PMSG and hCG (n = 40) or acted as controls. Of the hormone-injected gilts, 20 were fed 15 mg d−1 of allyl trenbolone from 7 to 21 d after the PMSG injection. Gilts were mated at their second estrus. There was no effect of treatment on the incidence of cyclic estrous behavior or on subsequent ovulation rates and numbers of embryos. Key words: Allyl trenbolone, gonadotrophins, puberty, gilts

Influence of PMSG antiserum on serum progesterone and estrous cycles of PMSG-treated gilts

1992 ◽  
Vol 72 (1) ◽  
pp. 173-176 ◽  
Author(s):  
R. N. Kirkwood ◽  
P. A. Thacker
Keyword(s):  
Key Words ◽  
Luteal Phase ◽  
Ovarian Activity ◽  
Serum Estradiol ◽  
Serum Progesterone ◽  
Estrous Cycles ◽  
Blood Samples ◽  
Effect Of Treatment

Forty-seven prepubertal gilts (88.4 ± 0.9 kg) received an injection of 750 IU PMSG to stimulate ovarian activity. After 96 h, 23 gilts received an injection of an anti-PMSG serum. Blood samples were obtained at the time of PMSG injection (day 0) and at 2, 4, 6, 11, 18, 25 and 32 d. There was no effect of treatment on serum estradiol concentrations or on the occurrence of normal estrous cycles. However, luteal phase serum progesterone concentrations were higher (P < 0.01) in gilts receiving the anti-PMSG. Key words: PMSG, antiserum, gilts, ovulation

Management of patients in conditions of female consultation at persistent course of papillomavirus infection of the cervix

2017 ◽  
pp. 34-36
Author(s):  
N.A. Shcherbina ◽  
◽  
D.I. Demidenko ◽  
A.D. Demidenko ◽  
N.V. Kapustnik ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Key Words ◽  
Maximum Effect ◽  
Cervical Epithelium ◽  
Results Of Treatment ◽  
Human Papillomavirus Infection ◽  
Papillomavirus Infection ◽  
Complex Therapy ◽  
Effect Of Treatment

Under our supervision there were 66 women with a diagnosis of "dysplasia of cervical epithelium mild" on the background of persistent human papillomavirus infection (PVI). With the aim of improving the treatment of dysplasia of the 1st degree in rehabilitation activities after cryoablation there were applied drugs Distreptaza and inducer of interferon. The results of treatment were evaluated after 3 months. For patients of the 1st group (18 women) who underwent only cryoablation, the efficacy of therapy was 77.8%. In the 2nd group (22 women) after cryoablation was used inducer of interferon, the effectiveness made up of 90.9%. The maximum effect of treatment - 100% recorded in 3rd group (26 patients), where after cryoablation was carried out treatment with Distreptaza and inducer of interferon. The results of treatment obtained in this group allow to recommend the complex therapy of PVI in conditions of female consultation. Key words: dysplasia, HPV, cryosurgery, Distreptaza, inducer of interferon.

Interactive effects of food deprivation and exercise on reproductive function in female hamsters

1994 ◽  
Vol 267 (1) ◽  
pp. R185-R190 ◽  
Author(s):  
J. B. Powers ◽  
A. E. Jetton ◽  
G. N. Wade
Keyword(s):  
Food Deprivation ◽  
Reproductive Function ◽  
Hormonal Treatment ◽  
Estradiol Benzoate ◽  
Interactive Effects ◽  
Combined Effects ◽  
Inhibitory Effects ◽  
Estrous Cycles ◽  
Running Wheels ◽  
Estrous Behavior

Two experiments evaluated the combined effects of food deprivation and runningwheel access on estrous cycles and estrous behavior of female hamsters. In experiment 1, food deprivation on days 1 and 2 of the estrous cycle disrupted the next expected ovulation, and this effect was more, rather than less, robust in females allowed to exercise in running wheels while they were deprived. In experiment 2, a similar protocol was used except the females were ovariectomized and received sequential injections of estradiol benzoate (EB; 5 micrograms) and progesterone (P; 200 micrograms) separated by 48 h to induce lordosis, which was tested 4-5 after P. Food deprivation concomitant with hormonal treatment diminished lordosis durations, but this effect was significant only among the females that were permitted to run in activity wheels. Previous findings demonstrated that access to running wheels attenuated the inhibitory effects of short photoperiod exposure on hamster estrous cycles. In contrast, the present results indicate that this same manipulation exaggerates rather than diminishes the inhibitory effects of food deprivation on estrous cycles and hormone-induced behavioral estrus.

The influence of dietary monensin and salinomycin on growth and endocrine status of gilts

1992 ◽  
Vol 72 (2) ◽  
pp. 427-429 ◽  
Author(s):  
T. A. Van Lunen ◽  
R. N. Kirkwood ◽  
P. A. Thacker
Keyword(s):  
Growth Hormone ◽  
Body Weight ◽  
Key Words ◽  
Crude Protein ◽  
Protein Diet ◽  
Serum Growth Hormone ◽  
Endocrine Status ◽  
Effect Of Treatment

Seventy-two gilts were fed a 16% crude protein diet supplemented with monensin, salinomycin or not supplemented. There was no effect of treatment on gilt growth between 30 and 100 kg body weight. Monensin-fed gilts tended to have increased, while salinomycin-fed gilts had decreased (P < 0.01), serum growth hormone concentrations. Salinomycin-fed gilts were older and heavier at puberty (P < 0.05). Key words: Monensin, salinomycin, gilts, growth, reproduction

NURSING AND CROSS-NURSING BEHAVIOR OF BEEF CATTLE IN CONFINEMENT

1983 ◽  
Vol 63 (4) ◽  
pp. 849-853 ◽  
Author(s):  
N. M. LEWANDROWSKI ◽  
J. F. HURNIK
Keyword(s):  
Beef Cattle ◽  
Key Words ◽  
Postpartum Period ◽  
Similar Distribution ◽  
Cow Calf ◽  
Estrous Behavior

Observations of 42 cow-calf pairs were collected over a 100-day postpartum interval to study the nursing and suckling behavior of beef cattle. Most calves (93%) displayed cross-suckling at some time during the study, but cows were slightly more selective (83%) in tolerating cross-suckling. Number of nursing events per day averaged 4.9 and time per event averaged 10.4 min. Number of cross-nursing events averaged 0.3 events per day and time per event averaged 5.0 min. About 61% of nursing took place from 0600–1800 h and 39% from 1800–0600 h. The lowest incidence of nursing in the morning occurred between 0400–0500 h and in the evening, between 2200–2300 h. Cross-nursing followed a similar distribution with 74% occurring between 0600 and 1800 h and 26% between 1800 and 0600 h. The number of suckling events and time spent suckling per day remained relatively constant over the 100-day postpartum period. Conversely, cross-suckling gradually increased. The number of nursing and cross-nursing events per day and time spent nursing per day were unaffected by estrous behavior. Key words: Beef cattle, nursing, cross-nursing, suckling, cross-suckling

DIURNAL PATTERNS OF ESTROUS BEHAVIOR OF DAIRY COWS HOUSED IN A FREE STALL

1987 ◽  
Vol 67 (3) ◽  
pp. 605-614 ◽  
Author(s):  
E. AMYOT ◽  
J. F. HURNIK
Keyword(s):  
Sexual Behavior ◽  
Dairy Cows ◽  
Key Words ◽  
Reproductive Behavior ◽  
Time Lapse ◽  
Low Intensity ◽  
Diurnal Patterns ◽  
Incandescent Lamps ◽  
Estrous Behavior

Sixteen primiparous and fifteen multiparous cows housed in a free-stall area with slatted floor alley were observed continuously for 100 d postpartum using a time-lapse videorecorder. Low intensity (< than 3 lx) red lights were used for nocturnal illumination. Natural daylight from an existing window and incandescent lamps provided daytime illumination (12–52 lx). The analyses focused on the periestrous period beginning 2 d prior to and ending 2 d after estrus. Onset of true estrus was most frequent between 1200 and 1800 h in the primiparous group (35%) and between 0600 and 1200 h in the multiparous group (37%). A nadir of true estrus onset (15%) occurred between 1800 and 2400 h in both groups. The predominant hours of estrual activities occurred during daylight, between 1500 and 1800 h in the primiparous group and between 0900 and 1100 h in the multiparous group. In general, the daily distribution of estrous activities had a quadratic shape and these shapes or patterns of estrous activities were remarkably consistent among cows and estruses. Among the monitored estrual activities, mounting, sniffing and chin pressed in the primiparous group, and chin pressing, chin pressed, mounting, mounted and sniffed in the multiparous group, were found to best discriminate the cows' behaviors on estrous day with their behaviors on the 2 days pre- and postestrus. Key words: Reproductive behavior, sexual behavior, estrous behavior, cow behavior, cow (dairy)

Estrous behavior and initiation of estrous cycles in postpartum Brahman-influenced cows after treatment with progesterone and prostaglandin F2α1,2

2006 ◽  
Vol 84 (7) ◽  
pp. 1916-1925 ◽  
Author(s):  
R. Flores ◽  
M. L. Looper ◽  
D. L. Kreider ◽  
N. M. Post ◽  
C. F. Rosenkrans
Keyword(s):  
Estrous Cycles ◽  
Estrous Behavior

Premenstrual syndrome: rational approaches to non-hormonal therapy

2017 ◽  
pp. 84-86
Author(s):  
O.V. Kravchenko ◽  
Keyword(s):  
Drug Therapy ◽  
Initial Data ◽  
Key Words ◽  
Hormonal Therapy ◽  
Premenstrual Syndrome ◽  
Clinical Laboratory ◽  
Menstrual Cycles ◽  
Traditional Scheme ◽  
Effect Of Treatment ◽  
Positive Effect

The objective: is the development of rational effective methods of non-hormonal therapy of premenstrual syndrome. Materials and methods. Under observation, there were 35 women 23-38 years aged. The diagnosis of premenstrual syndrome was established on the basis of general clinical, laboratory, instrumental research methods and consultancy by psychologist and psychiatrist. Evaluation of the effectiveness of treatment was carried out according to PMS-diaries by comparing the intensity of 18 symptoms expressed in points in the dynamics of treatment. For the purpose of correcting the symptoms of premenstrual syndrome, drug therapy was proposed, which in addition to antiprostaglandins according to the traditional scheme included venentonic Normoven, magnesium preparations (Magnikum), herbal teas. Treatment was carried out during II phase in the course of 3 menstrual cycles. Results. It was found that the average total index of PMS-diaries before the start of treatment was 23.4±6.7 points, after treatment – 10.1±7.2 points. A positive effect of treatment after 1 month was recorded by 28.6% of respondents, after the ending of treatment the share of respondents was 68.6%, the average total PMS-diary index decreased by 40% or more in comparing with the initial data. According to CINM-questionnaires: after 3 months of treatment 20 (57.1%) patients showed significant improvement, 15 (42.9%) women without significant changes.. Conclusion. Studies have shown that the treatment of premenstrual syndrome should be individualized. However, the use of such medications as magnesium lactate (Magnikum), Normoven venotonics allows to increase the effectiveness of the therapy of premenstrual syndrome in 68.8% of patients. Key words: premenstrual syndrome, non-hormonal therapy.

The influence of zeranol implantation on growth and reproduction of beef heifers

1991 ◽  
Vol 71 (4) ◽  
pp. 1249-1252 ◽  
Author(s):  
R. N. Kirkwood ◽  
R. D. H. Cohen ◽  
B. D. King ◽  
P. A. Thacker
Keyword(s):  
Key Words ◽  
Pregnancy Rate ◽  
Reproductive Performance ◽  
Growth Enhancement ◽  
Beef Heifers ◽  
Pelvic Area ◽  
Effect Of Treatment ◽  
Growth And Reproduction

Crossbred beef heifers received a 36-mg implant of zeranol at 60 d of age (R1; n = 35) or at both 60 and 197 d (weaning; R2; n = 32) or received no implants (C; n = 35). R2 heifers were heavier and had greater pelvic areas (P < 0.05 for both) at breeding compared with controls. There was no effect of treatment on the calving rates (78.1 vs. 80.0 vs. 74.3%) or on mean pelvic area at the time of calving (261.1 vs. 260.4 vs. 257.6 cm2) for R2, R1 and C heifers, respectively. We conclude that zeranol can be successfully used for growth enhancement from 60 d of age without detriment to subsequent reproductive performance. Key words: Zeranol, heifers, pregnancy rate, pelvic area

scholarly journals Evaluating the effects of crab meal, Carophyll Red®, and Carophyll Yellow® in laying hen diets on egg yolk pigmentation and production performance

2008 ◽  
Vol 88 (4) ◽  
pp. 637-640 ◽  
Author(s):  
Derek M Anderson ◽  
Janice L MacIssac ◽  
Michelle A Daniel ◽  
Tara L MacKinnon ◽  
Krista L Budgell
Keyword(s):  
Key Words ◽  
Egg Production ◽  
Egg Yolk ◽  
Laying Hen ◽  
Production Performance ◽  
White Leghorn ◽  
Effect Of Treatment

A total of 480 Babcock White Leghorn hens (65 wk of age) were randomly assigned to one of five diets [wheat-based control (C), 10 g t–1 Carophyll Red® (CR), 20 g t–1 Carophyll Yellow® (CY), 10 g t–1 CR + 20 g t–1 CY (CR + CY), 80 kg t–1 crab meal (CM)] for 60 d. There was no effect of treatment on egg production. There was an increase in red pigmentation (a* score) on day 45 among treatments supplemented with CR, CR + CY and CM when compared with C and CY. The laying hen was capable of depositing the natural carotenoid supplied by the CM into the egg yolk. Key words: Laying hen, crab meal, carotenoids, astaxanthin, yolk pigmentation

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