scholarly journals Influence of SRLV infections in sheep flocks on growth and reproductive performance

2018 ◽  
Vol 74 (8) ◽  
pp. 540-543
Author(s):  
WIKTOR BOJAR ◽  
ANDRZEJ JUNKUSZEW ◽  
MONIKA OLECH
Keyword(s):  
Body Weight ◽  
Reproductive Performance ◽  
Detrimental Effect ◽  
Serological Test ◽  
Negative Influence ◽  
The Body ◽  
Percentage Points ◽  
Body Weights ◽  
Lower Fertility ◽  
Lamb Growth

The aim of the study was to determine the influence of the occurrence of SRLV infections on lamb growth and reproductive performance of sheep. The study was carried out on 98 sheep flocks from mid-Eastern Poland, covering the area of Lubelskie, Świętokrzyskie and Podkarpackie provinces. The study included 6,470 mother ewes. Flocks with at least one detected case of SRLV-positive serological test were considered infected. All flocks included in the experiment were subjected to the analysis of lamb growth on the basis of their body weight achieved on the 56th day of life. Moreover, traits related to reproductive performance, such as fertility, lamb/ewe rate and lamb weaning rate, as well as the reproductive performance itself were evaluated. The observations showed that both ewes (18.98 kg) and rams (19.70 kg) achieved higher body weights in the flocks where SRLV had not been detected. In the flocks in which the presence of SRLV was detected the achieved body weight was lower by 0.93 kg and 1.26 kg, respectively. The sheep in the SRLV-infected flocks were characterized by a significantly lower fertility and higher lamb/ewe rate in comparison to other flocks. The analysis conducted for the purpose of the study showed that the presence of SRLV in a flock resulted in a worse lamb weaning rate by about 6.69 percentage points. To sum up, the flocks with detected presence of SRLV were characterized by a significantly lower fertility and greater lamb mortality rate. The presence of SLRV also had a detrimental effect on the body weight obtained on the 56th day of life, both in rams and ewes. The results of the study clearly indicate the negative influence of SRLV on the reproductive performance of sheep..

scholarly journals Comparison of body weight and reproduction performance in cows of various beef breeds managed under equal conditions in West Pomerania

2008 ◽  
Vol 51 (4) ◽  
pp. 318-328 ◽  
Author(s):  
R. Pilarczyk ◽  
J. Wójcik
Keyword(s):  
Body Weight ◽  
Reproductive Performance ◽  
Beef Cows ◽  
The Body ◽  
Calving Interval ◽  
Calving Ease ◽  
Body Weights ◽  
Red Angus ◽  
Calving Difficulty ◽  
Calving Intervals

Abstract. The aim of the study was to compare the body weight and the parameters of reproductive performance in beef cows of various breeds following their import to Poland from 1995–1997. The analyses included cows of five beef breeds: Red Angus, Salers, Hereford, Limousin and Simmental. We have compared the body weights and calving intervals during the period from their arrival to Poland in 1995 until 2002, with subsequent calvings included in the analyses. Other aspects included calving difficulty, abortions, stillbirths and twin births. The analysis of the cows’ reproductive performance has revealed that the studied breeds differ in the calving interval. Best results were achieved by Simmental and Limousine cows, while Red Angus cows exhibited the poorest performance. The effect of subsequent calving on the calving interval was also confirmed. We have observed no differences among the mature cows with respect to the body weight and calving ease.

L-Ascorbic Acid Addition to Chitosan Reduces Body Weight in Overweight Women

2014 ◽  
Vol 84 (1-2) ◽  
pp. 5-11 ◽  
Author(s):  
Eun Y. Jung ◽  
Sung C. Jun ◽  
Un J. Chang ◽  
Hyung J. Suh
Keyword(s):  
Ascorbic Acid ◽  
Body Weight ◽  
Fat Body ◽  
Body Weight Gain ◽  
Skinfold Thickness ◽  
The Body ◽  
Control Group ◽  
Percentage Body Fat ◽  
Overweight Women ◽  
Body Weights

Previously, we have found that the addition of L-ascorbic acid to chitosan enhanced the reduction in body weight gain in guinea pigs fed a high-fat diet. We hypothesized that the addition of L-ascorbic acid to chitosan would accelerate the reduction of body weight in humans, similar to the animal model. Overweight subjects administered chitosan with or without L-ascorbic acid for 8 weeks, were assigned to three groups: Control group (N = 26, placebo, vehicle only), Chito group (N = 27, 3 g/day chitosan), and Chito-vita group (N = 27, 3 g/day chitosan plus 2 g/day L-ascorbic acid). The body weights and body mass index (BMI) of the Chito and Chito-vita groups decreased significantly (p < 0.05) compared to the Control group. The BMI of the Chito-vita group decreased significantly compared to the Chito group (Chito: -1.0 kg/m2 vs. Chito-vita: -1.6 kg/m2, p < 0.05). The results showed that the chitosan enhanced reduction of body weight and BMI was accentuated by the addition of L-ascorbic acid. The fat mass, percentage body fat, body circumference, and skinfold thickness in the Chito and Chito-vita groups decreased more than the Control group; however, these parameters were not significantly different between the three groups. Chitosan combined with L-ascorbic acid may be useful for controlling body weight.

Roux-en-Y Gastrointestinal Bypass Promotes Activation of TGR5 and Peptide YY

2020 ◽  
Vol 20 (8) ◽  
pp. 1262-1267
Author(s):  
Haojun Yang ◽  
Hanyang Liu ◽  
YuWen Jiao ◽  
Jun Qian
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Metabolic Diseases ◽  
Peptide Yy ◽  
The Body ◽  
Wild Type ◽  
L Cells ◽  
Body Weights ◽  
Gastrointestinal Bypass ◽  
G Protein Coupled

Background: G protein-coupled bile acid receptor (TGR5) is involved in a number of metabolic diseases. The aim of this study was to identify the role of TGR5 after Roux-en-Y gastric bypass (GBP). Methods: Wild type and TGR5 knockout mice (tgr5-/-) were fed a high-fat diet (HFD) to establish the obesity model. GBP was performed. The changes in body weight and food intake were measured. The levels of TGR5 and peptide YY (PYY) were evaluated by RT-PCR, Western blot, and ELISA. Moreover, the L-cells were separated from wild type and tgr5-/- mice. The levels of PYY in L-cells were evaluated by ELISA. Results: The body weights were significantly decreased after GBP in wild type mice (p<0.05), but not tgr5-/- mice (p>0.05). Food intake was reduced after GBP in wild type mice, but also not significantly affected in tgr5-/- mice (p>0.05). The levels of PYY were significantly increased after GBP compared with the sham group (p<0.05); however, in tgr5-/- mice the expression of PYY was not significantly affected (p>0.05). After INT-777 stimulation in L-cells obtained from murine intestines, the levels of PYY were significantly increased in L-cells tgr5+/+ (p<0.05). Conclusion: Our study suggests that GBP up-regulated the expression of TGR5 in murine intestines, and increased the levels of PYY, which further reduced food intake and decreased the body weight.

Seasonal changes in pancreatic B-cell function in euthermic yellow-bellied marmots

1985 ◽  
Vol 249 (2) ◽  
pp. R159-R165 ◽  
Author(s):  
G. L. Florant ◽  
A. K. Lawrence ◽  
K. Williams ◽  
W. A. Bauman
Keyword(s):  
Insulin Resistance ◽  
Body Weight ◽  
B Cell ◽  
Cell Function ◽  
Peripheral Resistance ◽  
The Body ◽  
Pancreatic B Cell ◽  
Peripheral Insulin Resistance ◽  
Body Weights ◽  
System Input

Fasting plasma insulin (PI) and glucose (PG) concentrations were measured throughout the body weight cycle of marmots. Animals gained weight during summer, and in late fall body weight peaked, after which they ceased feeding. Each month euthermic animals were injected intra-arterially with either dextrose (500 mg/kg) or porcine insulin (0.1 U/kg), and blood samples were collected over the subsequent 2 h. During weight gain fasting PI concentration and pancreatic B-cell response to injected dextrose increased markedly. Maximal insulin release to a dextrose challenge was measured during peak body weight or when body weight initially began to decline. The PG concentration after exogenous insulin administration was slight (less than 10%) in the fall but increased approximately 25% in the spring after marmots lost weight. Basal PG levels were not significantly different throughout the year. Basal fasting PI concentrations were significantly higher during the fall (P less than 0.01). It is suggested that in the fall, when marmots are obese, hyperinsulinemia and peripheral insulin resistance appear. Furthermore, in two animals with an increase in body weight of approximately 30% or less over the summer, peripheral resistance was demonstrable, albeit not as marked as in animals that appropriately doubled their body weights when given food ad libitum. Thus we hypothesize that factors other than adiposity, i.e., food intake, central nervous system input to the pancreatic B-cell, and/or changes in B-cell sensitivity to PG, may contribute to the observed peripheral insulin resistance and may be involved in body weight regulation.

scholarly journals Composition of the human foetus

1972 ◽  
Vol 27 (2) ◽  
pp. 305-312 ◽  
Author(s):  
Sharad V. Apte ◽  
Leela Iyengar
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Gestational Age ◽  
Maternal Nutrition ◽  
The Body ◽  
Human Foetus ◽  
Free Weight ◽  
Body Weights ◽  
Calcium Phosphorus ◽  
Ca:P Ratio

1. The body composition was determined of forty-one fetuses of different gestational ages born to mothers belonging to a low socio-economic group of the population.2. With increasing gestational age the water content fell from 88% at 28 weeks to 76% at term; the fat content increased from 2.1% to 11.2% and the protein content increased from 6.9 to 9.3%.3. The changes in body composition were more closely related to body-weight than to gestational age.4. The calcium, Phosphorus and magnesium contents of the body per unit fat-free weight progressively increased with gestational age, and at term the values appeared to be considerably lower than those reported in the literature. The Ca:P ratio was constant at different body-weights.5. The body iron content per unit of fat-free weight increased marginally with increasing gestational age. The value was almost 30% lower than the values reported from elsewhere.6. It is suggested that chemical composition and nutrient stores of the developing foetus can be considerably influenced by the state of maternal nutrition.

Effect of Changes in Ambient Temperature on Spontaneous Activity, Food Intake and Body Weight of Goldthioglucose-Obese and Nonobese Mice

1957 ◽  
Vol 188 (3) ◽  
pp. 435-438 ◽  
Author(s):  
M. J. Fregly ◽  
N. B. Marshall ◽  
J. Mayer
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Ambient Temperature ◽  
The Body ◽  
Lower Body ◽  
Obese Mice ◽  
Ambient Temperatures ◽  
Exposure To Cold ◽  
Running Activity ◽  
Body Weights

Goldthioglucose-obese mice cannot adjust their food intake to meet the increased energy requirements due to cold. At all ambient temperatures above 15°C the spontaneous running activity of these animals is less than that observed for nonobese controls. Activity of obese mice is maximal at 19°C and minimal at 15°C or lower. Body weights decrease during exposure to cold. In contrast to that of obese mice, running activity of nonobese controls is maximal at an ambient temperature of 25°C but nearly ceases at 15°C or lower. The food intake of these animals increases in the cold and remains elevated even at temperatures at which activity decreases. The body weight of nonobese controls is either maintained constant or increases during exposure to cold air.

A note on annual reproductive rhythm in Marwari sheep of the Rajasthan Desert in India

1980 ◽  
Vol 30 (1) ◽  
pp. 153-156 ◽  
Author(s):  
J. P. Mittal ◽  
P. K. Ghosh
Keyword(s):  
Body Weight ◽  
Average Length ◽  
Live Weight ◽  
Reproductive Activity ◽  
The Body ◽  
Seasonal Effect ◽  
Western India ◽  
Seasonal Fluctuations ◽  
Body Weights ◽  
North Western

ABSTRACTSeasonal fluctuations in oestrous activity and live weight were studied in ewes of the Marwari breed indigenous to the Rajasthan Desert in north-western India. Of the ewes examined 80 to 100% were in oestrus every month of the year, indicating thereby the non-seasonality of female reproductive activity in this breed. On average, each ewe exhibited heat 18 times a year. The incidence of silent heats was low (4·2 %). The average length of an oestrous cycle was 17 days, while the actual period of oestrus varied from 24 to 48 h with an average of 36 h. No seasonal effect on these activities could be observed. The maximum and minimum body weights of the animals were recorded during the autumn (October) and summer (June) months respectively. The body weights differed significantly (P<0·05) between months. Sexual activity in these animals is, therefore, apparently not affected by changes in body weight. The continuous nature of oestrous activity in Marwari sheep may be economically exploited by regulating the lambing season according o t the prevailing ecological conditions and market demands, without the use of hormones.

scholarly journals Disparities in the body, chest, and wing morphometric among three subspecies of local male chickens for genetic breeding

2021 ◽  
Vol 888 (1) ◽  
pp. 012012
Author(s):  
H D Putranto ◽  
Nurmeiliasari ◽  
Y Yumiati ◽  
A M Nur
Keyword(s):  
Developing Countries ◽  
Body Weight ◽  
Food Security ◽  
The Body ◽  
Genetic Breeding ◽  
Wing Span ◽  
Body Weights ◽  
Chest Girth ◽  
Average Body ◽  
Local Chickens

Abstract Local chickens in developing countries, including Indonesia, have great potential to be developed into natural superior breeds to support food security and improve farmer welfare. Meanwhile, the major endemic subspecies found in the Bengkulu province are burgo and kampung chicken, as well as ketarras which are recently bred intensively. Therefore, this study aims to analyze the disparities in the morphometrics of three subspecies of local male chickens specifically on the body weight, length, chest girth and length, as well as wing span. Based on the results, the male burgo chicken morphometrical size was significantly smaller than ketarras, while the ketarras chicken was significantly smaller than kampung (P < 0.05). Furthermore, the average body weights for the burgo, ketarras and kampung chicken were 1.0, 1.2 and 1.9 kg cock-1, respectively, while the average of body length, chest and chest length, as well as wing span were 29.9, 40.0, 47.7 cm cock-1; 26.2, 30.1, 36.3 cm cock-1; 12.6, 17.8, 20.3 cm cock-1, and 34.4, 41.9, 55.9 cm cock-1, respectively. Therefore, it was concluded that the burgo and kampung chicken have the smallest and biggest morphometric sizes respectively.

scholarly journals Haematological parameters in relation to age, sex and body weight of free-range village chickens (Gallus gallus domesticus) in Maiduguri, Nigeria

2021 ◽  
pp. 78-84
Keyword(s):  
Body Weight ◽  
Haemoglobin Concentration ◽  
The Body ◽  
Haematological Parameters ◽  
Jugular Veins ◽  
Important Indicator ◽  
Free Range ◽  
Body Weights ◽  
Leukocyte Counts ◽  
Apparently Healthy

The haematology of animals including chickens is an important indicator of their health status. It is therefore considered a useful tool in clinical diagnosis. The aim of this study was to investigate the haematological parameters of apparently healthy free range domesticated chickens as influenced by their sex, age and body weights. Blood samples taken from the jugular veins were analysed using standard haematological protocols. PCV, haemoglobin concentration, TRBC, TWBC, differential leukocyte counts, erythrocytes indices (MCV, MCHC and MCH) were measured. The study showed that there were no significant (P>0.05) age-dependent variation in all the measured haematological parameters. However, sex had effect on PCV, TRBC and heterophil count. Male chickens had higher PCV value of (34.4%) and TRBC value of (2.4 × 1012/L) as compared to female chickens with PCV value of (30.5%) and TRBC value of (2.1 × 1012/L). On the other hand, female chickens had higher mean heterophil value of (22.0 × 109/L) and MCHC value of (29.5g/dl) as compared to male chickens with mean heterophil and MCHC values of (16.8 × 109/L) and (25.7g/dl) respectively. There was significant (P<0.05) increase in PCV with increasing body weights in males but not in females. The MCHC decreased significantly (P<0.05) as the body weight increased also in males but not in females. The results of the study indicate that sex and body weights influenced normal haematological parameters of apparently healthy free range domestic chickens in the study environment. Keywords: Age, body weight, haematology, sex, village chicken.

scholarly journals Biological efficiency of Charolais beef cows of different body sizes

2018 ◽  
Vol 39 (4) ◽  
pp. 1737
Author(s):  
Gustavo Duarte Farias ◽  
Liliane Cerdótes ◽  
Ricardo Zambarda Vaz ◽  
João Restle ◽  
Marcia Ferreira Bitencourt ◽  
...  
Keyword(s):  
Body Weight ◽  
Reproductive Performance ◽  
Reproductive Period ◽  
Productive Efficiency ◽  
The Body ◽  
Biological Efficiency ◽  
Average Weight ◽  
Pregnancy Diagnosis ◽  
Cow Calf ◽  
Weight Groups

This study aimed to evaluate the production, reproductive performance, and productive efficiency of predominantly Charolais cows and their calves (Straightbred, ¾ C, ¼ N) according to body size at calving. Sixty-three cow-calf pairs were used and classified into three weight groups: Light (331.3±5.8 kg), Moderate (385.9±5.3 kg), and Heavy (424.4±6.2 kg). The classes were formed using half standard deviations above or below the average weight of the cows at calving. For each pair, the body weight was evaluated at calving, at weaning (63 days), at the beginning and at end of the reproductive period, and at 9 months for the calves. Pregnancy rates were similar (P > 0.05) between weight groups. The calves did not differ (P > 0.05) in terms of body weight and weight gain from calving until pregnancy diagnosis (210 days). The heavy cows had greater weight variations from 210 days to 270 days than the light cows. The calf production rate (kg calf/cow kept in herds) did not differ between weight groups. However, in relation to the weight of the cows at 210 days, light cows were 11.28% and 13.02% more productive (P < 0.05), than moderate and heavy cows, respectively. Light cows were more efficient than the other classes of cows at calving and at 210 days old. Our simulations showed that there were more kilograms for sale in herds of light cows (53.085 kg) than moderate and heavy cows (52.310 and 52.870 kg, respectively), while maintaining the structures of the herd constant. The size of the Charolais cow did not influence the weight of calves from calving until 7 months of age or their reproductive performance provided they were weaned early. The need for space for the maintenance of the cow-calf pair increased as the weight of the cows increased. In herds with smaller cows, higher numbers and a higher production of weight for sale are observed than in herds with moderate and heavy cows. Light cows were the most efficient at calving and during pregnancy diagnosis at 210 days.

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