THE RELATIONSHIP BETWEEN SERUM TESTOSTERONE LEVELS, SEX AND TEAT-SEEKING ABILITY OF NEWBORN PIGLETS

1985 ◽  
Vol 65 (3) ◽  
pp. 627-630 ◽  
Author(s):  
L. A. BATE ◽  
R. R. HACKER ◽  
M. B. KREUKNIET
Keyword(s):  
Body Weight ◽  
Detrimental Effect ◽  
Serum Testosterone ◽  
Maternal Serum ◽  
Blood Samples ◽  
Male And Female ◽  
Newborn Piglets ◽  
Baseline Levels ◽  
Highly Correlated ◽  
The Relationship

Blood samples were collected from five pregnant sows from day 111 postbreeding to farrowing and from their piglets at regular intervals between birth and 48 h. The time between birth and first suckling (BTS) was recorded for each piglet. Maternal serum testosterone (T) levels were detectable only at the beginning of parturition and were highly correlated (r = 0.83) with litter BTS. Serum T levels of male and female piglets were similar at birth. In male piglets the T levels increased to a peak 2 h after birth and decreased gradually thereafter. In contrast, the T levels of female piglets declined rapidly after birth to baseline levels. The BTS of female piglets was shorter than that of male piglets. Body weight of males was higher than that of females and was influenced by litter size. These results suggest that the higher serum T levels of male piglets may have a detrimental effect on their teat-seeking ability. Key words: Serum testosterone, sex, piglets, teat-seeking ability, sow

Agreement between i-STAT and YSI 2300 devices to determine lactate concentrations in dogs undergoing exercise

2016 ◽  
Vol 12 (2) ◽  
pp. 75-82 ◽  
Author(s):  
C. Berkman ◽  
M.C. Pereira ◽  
K.B. Nardi ◽  
G.T. Pereira ◽  
O.A.B. Soares ◽  
...  
Keyword(s):  
Venous Blood ◽  
Lactate Concentration ◽  
Intense Exercise ◽  
Blood Samples ◽  
Handheld Device ◽  
Clinical Evaluations ◽  
Small Constant ◽  
Constant Bias ◽  
Highly Correlated ◽  
The Relationship

Little information is available comparing the i-STAT and the YSI 2300 Stat Plus devices to determine the lactate concentration [Lac] in dogs undergoing intense exercise. The reproducibility of the YSI 2300 for quantifying the [Lac] in canine blood [Lac]b and plasma [Lac]p samples has been observed. In addition, the i-STAT handheld device was used to quantify [Lac] in dogs subjected to exercise, and the results were compared with that of YSI 2300. Venous blood samples of Beagle and American Pit Bull Terrier dogs were obtained during an intense exercise training on a treadmill. [Lac]p and [Lac]b were quantified using the YSI 2300 instrument to determine the reproducibility of the results. A total of 52 specimens were compared for both plasma and whole blood. For comparing the devices (YSI 2300 vs i-STAT), 96 samples were used. Ordinary least products regression, the correlation coefficient, and Bland-Altman plots were used to assess the agreement of using the i-STAT device. The relationship between duplicate measurements of both [Lac]b and [Lac]p by YSI 2300 was strong (r=0.99). A correlation between the data obtained using the i-STAT and YSI 2300 instruments was observed for both the [Lac]p (r=0.97) and [Lac]b (r=0.88). The i-STAT exhibited a small constant bias (-0.25 mmol/l) compared to YSI 2300 ([Lac]b). There were proportional biases of 0.89 mmol/l for [Lac]p and 1.22 mmol/l for [Lac]b when using YSI 2300 vs i-STAT. We confirmed the reproducibility of the YSI 2300 for canine lactate blood/plasma samples. The results obtained by the i-STAT and YSI 2300 analyser were highly correlated, but a small constant bias was observed between them. The i-STAT device can be used in clinical evaluations, and it is also adequate for designing and monitoring fitness programmes.

scholarly journals Serum biochemical properties of Vietnamese indigenous Noi chicken at 56 days old

2020 ◽  
Vol 36 (3) ◽  
pp. 329-339
Author(s):  
Nguyen Giang ◽  
Nguyen Hien ◽  
Huynh Loan ◽  
Phan Phuc ◽  
Nguyen Dai ◽  
...  
Keyword(s):  
Total Protein ◽  
Biochemical Parameters ◽  
Animal Health ◽  
Correlation Coefficients ◽  
Biochemical Properties ◽  
Blood Samples ◽  
Male And Female ◽  
Native Breed ◽  
Serum Biochemical ◽  
The Relationship

Serum profile is generally considered as comprehensive data which directly reflected animal health and their potential resistance to environmental, nutritional and pathological stress. The present study aimed to provide physiological reference values for selected biochemical parameters in Noi chickens, a famous Vietnamese native breed, at 56 days old. The collected blood samples of 355 Noi birds (164 males and 191 females) were used to evaluate biochemical serum profile. Glucose, total protein, albumin, globulin, albumin/globulin ratio, triglycerides, cholesterol, creatinine, and uric acid in the serum were measured. The variation in these values arising from different sexes was also investigated. The results indicated that there were no differences (P>0.05) in the assessed indices between male and female Noi chickens. In overall for the whole group, these values were obtained as 250.86 mg/dL, 7.34 g/dL, 3.40 g/dL, 3.94 g/dL, 1.75, 148.54 mg/dL, 190.86 mg/dL, 0.44 mg/dL, and 1.44 mg/dL, respectively. The relationship among the biochemical parameters showed relatively low coefficients (r=0.79 in maximum). The females obtained higher correlation coefficients between levels of total protein and glucose (r=0.42) as well as between total protein and globulin (r=0.79), compared to the males. It was concluded that the male and female chickens performed similar values of serum indices. The contribution of this study might expand the knowledge on the biochemical profile and improved breeding strategies of Vietnamese indigenous Noi chickens.

scholarly journals Relation between swine weight and morphometric measurements

2020 ◽  
Vol 9 (9) ◽  
pp. e891998013
Author(s):  
Mônica Calixto Ribeiro de Holanda ◽  
Marco Aurélio Carneiro de Holanda ◽  
Leandro Ricardo Rodrigues de Lucena
Keyword(s):  
Mathematical Model ◽  
Body Weight ◽  
Regression Models ◽  
Hip Circumference ◽  
Morphometric Measurements ◽  
Large White ◽  
Male And Female ◽  
Lactation Phase ◽  
Relationship Of ◽  
The Relationship

Objective was to define a mathematical model that better explain the relationship of the animals weight depending not only on the animals age but also on the animals morphometric measurements. 40 piglets, half Duroc-Large White blood, were used, 20 males and 20 females, from 3 to 35 days of age (lactation phase) initially weighing 1.518 ± 0.121 kg and from 36 to 66 days of age (calving phase) with a body weight of 7.010 ± 0.704 kg. The animals were weighed weekly on a digital balance. The relationship of animal weight, age and morphometric measurements of male and female piglets were performed using regression models: existing, linear and power. The models were evaluated according to nine criterialinear model was the most adequate to explain the weight of male pigs, while for female pigs was the power. The age of the pig, the shank and palette length, as well as the circumference of the shank jointly explain the weight of the male piglets. The weight of females is explained jointly by age, body length, thorax and hip circumference.

Sex Differences in Body-Weight Change following Gonadectomy of Rats

1968 ◽  
Vol 22 (2) ◽  
pp. 547-554 ◽  
Author(s):  
Jan W. Kakolewski ◽  
Verne C. Cox ◽  
Elliot S. Valenstein
Keyword(s):  
Body Weight ◽  
Sex Differences ◽  
Female Rats ◽  
Body Weight Change ◽  
Review Of The Literature ◽  
Male And Female ◽  
Male And Female Rats ◽  
Relationship Of ◽  
The Relationship ◽  
Hypothalamic Damage

Data are presented to demonstrate that the effects of gonadectomy on body weight and food consumption differ in male and female rats. The findings are related to the authors' report of sex differences in the effects of ventromedial hypothalamic damage. A review of the literature on the relationship of the gonads to body weight in different species is presented.

scholarly journals EVALUATION OF FRIESIAN HOLSTEIN GRADE COWS FERTILITY BASED THE LEVEL OF MILK UREA

2017 ◽  
Vol 11 (1) ◽  
pp. 23-26
Author(s):  
Diah Tri Widayati ◽  
Yustina Yuni Suranindyah ◽  
Laelatul Rahmah ◽  
Budi Prasetyo Widyobroto
Keyword(s):  
Body Weight ◽  
Regression Analysis ◽  
Hormone Level ◽  
Holstein Cows ◽  
Calving Interval ◽  
Blood Samples ◽  
Urea Level ◽  
Milk Urea ◽  
Days Open ◽  
The Relationship

This study was conducted to evaluate fertility grade of Friesian Holstein cows based on milk urea levels. A number of eight cows which fulfill the criteria of not pregnant and in second to sixth lactation, produced milk of 2.5 liters/day, and body weight ranging from 400-450 kg were used in this research. The cows were given fodder that consisted of 30 kg of forage and 10 kg of a mixture of concentrate (pollard, pulp out, and molasses), in the morning and afternoon. Milk and blood samples were taken once a week for five weeks in the morning before fed. Milk urea levels were measured using the urea FS (DiaSys) and blood samples were tested using enzyme linked immuno-sorbent assay (ELISA) with the progesterone hormone kit (DRG, Germany). The variables measured were pregnancy rate, service per conception (S/C), days open, and progesterone levels. Reproduction and milk urea levels data were analyzed by linear regression to determine the relationship between two variables. Progesterone data were analyzed descriptively. The results showed that the average calving interval, days open, and S/C were 607.5±170.27 days; 341.25±187.65 days; and 2.41±2.32 days, respectively. The average of milk urea levels was 14.16±2.55 mg/dL. Regression analysis showed a significant effect (P<0.05) and negative correlation between milk urea level and S/C. The average of non-pregnant progesterone hormone level was 12.04±7.13 ng/mL. In conclusion, the fertility grade of Friesian Holstein cows decreased when the milk urea level at 14.16 mg/dL and non-pregnant progesterone at 12.04±7.13 ng/mL.

LEVELS OF IMMUNOGLOBULINS G AND M AND TRI-IODOTHYRONINE IN CORD BLOOD AND THE DIAGNOSIS OF NEONATAL THYROID DISEASE

1978 ◽  
Vol 76 (2) ◽  
pp. 377-378
Author(s):  
S. DISSANAYAKE
Keyword(s):  
Sri Lanka ◽  
Editorial Comment ◽  
Cord Blood ◽  
General Hospital ◽  
Thyroid Disease ◽  
Maternal Serum ◽  
Blood Samples ◽  
Agarose Gels ◽  
Single Radial Immunodiffusion ◽  
The Relationship

Department of Biochemistry, Faculty of Medicine, Peradeniya Campus, Peradeniya, Sri Lanka (Revised manuscript received 10 October 1977) During pregnancy, the level of tri-iodothyronine (T3) in the maternal serum is raised but this increase is not reflected in cord blood (Editorial Comment, 1973; Burke & Eastman, 1974; Walfish, 1976). To what extent the T3 content and the composition of cord blood are interdependent or related is not clear and this study was undertaken to investigate the relationship between the levels of T3 and immunoglobulins in cord blood. Cord blood was collected from 53 subjects in the General Hospital, Kandy, Sri Lanka, at the time of delivery. Blood samples were allowed to clot and the serum was separated and stored at −20 °C. The concentrations of immunoglobulins G (IgG) and M (IgM) were determined by single radial immunodiffusion in agarose gels (2% for IgG; 1% for IgM) with reference to WHO standard

Effects of corticotropin-releasing factor on energy balance in rats are sex dependent

1989 ◽  
Vol 257 (6) ◽  
pp. R1417-R1422 ◽  
Author(s):  
S. Rivest ◽  
Y. Deshaies ◽  
D. Richard
Keyword(s):  
Body Weight ◽  
Energy Balance ◽  
Food Intake ◽  
Serum Testosterone ◽  
Corticotropin Releasing Factor ◽  
Female Rats ◽  
Male Rats ◽  
Male And Female ◽  
Male And Female Rats ◽  
Significant Difference

The purpose of this study was to investigate the effects of a chronic intracerebroventricular administration of corticotropin-releasing factor (CRF) on energy balance of male and female rats. One week after their delivery to the laboratory, both male and female rats were divided into two groups. One group in each sex was treated with human/rat CRF, while another group was infused with the vehicle. Chronic administration of CRF was accomplished by means of miniosmotic pumps connected to a cannula that was stereotaxically directed into the third ventricle. Food intake and body weight were measured each day during the study. After 14 days of treatment, the rats were killed by decapitation. Energy, fat, and protein contents of the carcasses were quantified. Serum testosterone and estradiol were assayed in males and females, respectively. Administration of CRF significantly reduced body weight gain and food intake in male rats. No significant difference in those variables was observed between female rats treated with CRF and their controls infused with saline. Similarly, metabolizable energy intake and body energy gain were reduced in male rats infused with CRF, whereas no difference was observed between female animals treated with CRF and those infused with saline. In male rats, body fat and body protein contents were lower in CRF-treated than in saline-infused rats. In female rats, CRF did not affect body composition. Serum testosterone in male rats and serum estradiol in female animals were reduced after chronic infusion of CRF.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Nose size indicates maximum penile length

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Hiroshi Ikegaya ◽  
Motofumi Suzuki ◽  
Hiroki Kondou ◽  
Taketo Kawai ◽  
Yusuke Sato ◽  
...  
Keyword(s):  
Body Weight ◽  
Multivariate Analysis ◽  
Male Genitalia ◽  
Serum Testosterone ◽  
Penile Length ◽  
Highly Correlated ◽  
Older Males ◽  
Penile Circumference

Abstract Background In a previous report, we investigated whether the size of male genitalia similarly exposed to serum testosterone during aging could change with age and found that penile length almost stopped increasing during adolescence and decreased in older males. In this report, to determine what factors other than age are related to penile length, we performed a multivariate analysis of the relationships between stretched penile length (SPL) and other measurements of genital organs, nose size, height and body weight in 126 adults in their 30s–50s. Results The most highly correlated factor with SPL was flaccid penile length (r = 0.565, P < 0.0001). The next highest correlation was nose size (r = 0.564, P < 0.0001). The penile stretched rate correlated with FPL (r = − 0.690, P < 0.0001) but not with SPL or penile circumference. Conclusions The fact that nose size is related to SPL indicates that penile length may not be determined by age, height or body weight but has already been determined before birth.

scholarly journals Predicting body weight from body measurements of pre-pubertal Ayrshire heifers

1996 ◽  
Vol 5 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Päivi Mäntysaari
Keyword(s):  
Body Weight ◽  
Regression Analysis ◽  
Actual Body ◽  
Body Length ◽  
The Body ◽  
Body Measurements ◽  
Actual Body Weight ◽  
Feeding Level ◽  
Highly Correlated ◽  
The Relationship

The relationship between heart girth, wither height, body length and body weight in 3- to 9.5-month-old pre-pubertal Finnish Ayrshire heifers gaining 600-650 g/d was analysed (experiment I). Regression analysis showed that heart girth was the trait most highly correlated to body weight (R2 = 0.969). Including body length or wither height as a second term in the regression, increased R2 values only slightly. When the relationship between heart girth and body weight was used to predict the body weight of heifers reared at two feeding levels (experiment II), the precision of prediction was affected by the plane of nutrition. Actual body weight for a given heart girth was slightly higher on the high than on the low feeding level. It is, nevertheless, concluded that the equations presented in the paper can be used to estimate accurately the body weight of pre-pubertal (95-140-cm heart girth) Ayrshire heifers gaining 550-700 g/d.

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