Body composition in vivo. VI. The composition of ewes during prolonged undernutrition

1964 ◽  
Vol 15 (5) ◽  
pp. 771 ◽  
Author(s):  
BA Panaretto

Ten Border Leicester x Merino ewes were divided into two groups on the basis of a initial calculation of their body composition. Group 1 comprised a group of six moderately fat ewes (fat content < 25% body weight), and group 2 four very fat ewes (fat content >40% body weight). The ewes were undernourished by feeding progressively diminishing quantities of a mixture of lucerne chaff and oats (1:1) until group 1 had lost 38.7 and group 2 33.7% of their initial weight in 150–200 days. Feed intakes and wool growth of the sheep were recorded and calculations were made of the body composition in terms of total body water, fat, protein, and ash as undernutrition progressed. Thiocyanate spaces, haematocrit values, and plasma, blood, and red cell volumes were also measured. Generally the ewes in group 1 exhibited a starvation syndrome which was characterized by the gradual depletion of the fat and protein reserves of the body until fat reserves had been almost completely used. Thiocyanate spaces in these ewes expanded relative to body weight, and the circulatory parameters showed a progressive shrinkage of the red cell volume while plasma volume was maintained. The ewes in group 2 differed markedly in their reaction to undernutrition in that three out of the four passed, after a time, into a phase of inappetence and died while still in a very fat condition.

1995 ◽  
Vol 73 (9) ◽  
pp. 1620-1624 ◽  
Author(s):  
Jean Huot ◽  
Marie-Lazarine Poulle ◽  
Michel Crête

The body composition of 27 coyotes (Canis latrans) of different ages and both sexes was determined on the basis of chemical analyses of homogenized samples of viscera, carcass, and skin. Regression analyses were used to identify the best indices for estimating fat (lipid reserves), protein, and water body contents. A combined index based on the kidney fat index and the percentage of femur marrow fat was the best indicator of fat reserves. Body mass (whole or skinned carcass) and eviscerated carcass mass were the best predictors of total body protein and total body water contents. A combination of indices is proposed to provide postmortem or in vivo estimates of coyote body composition.


1987 ◽  
Vol 67 (4) ◽  
pp. 1033-1041
Author(s):  
F. A-R. SANKOH ◽  
R. J. BOILA

Injectable Cu and Zn were evaluated as mineral supplements using 37 purebred Herefords (Group 1) and 23 Angus-Charolais-North Devon crosses (Group 2). The 60 steers were carried through a 113-d grazing phase. This was followed by a 79-d finishing phase for all steers of Group 1 and seven steers of Group 2. Treatments were combinations of the non-dosing (0Cu, 0Zn) and dosing (+Cu, +Zn) of steers with injectable Cu or Zn at the start of the grazing phase: (1) 0Cu, 0Zn; (2) +Cu, 0Zn; (3) 0Cu, +Zn; and (4) +Cu, +Zn. Injectables were the sole source of supplementary Cu and Zn during grazing and finishing phases. Means (SE) for Cu and Zn, respectively, in forages as milligrams per kilogram dry matter (DM) during the grazing phase were: grasses, 4.4 (0.17), 15.7 (0.46); alfalfa, 6.9 (0.18), 16.5 (1.49); and birdsfoot trefoil 5.0 (0.76), 15.0 (3.41). Injectable Cu did not influence (P > 0.05) body weight during the grazing phase. Body weight responses were lower (P < 0.05) for +Cu steers in the finishing phase, when dietary Cu was low, but steers could not be classified as Cu-deficient based on liver Cu. Liver Cu increased to means greater than 140 mg kg−1 DM in all steers, but was higher (P < 0.05) in +Cu steers during the grazing phase. Serum Cu varied widely during the grazing phase, but was higher (P < 0.05) for +Cu steers only on day 84 of the grazing phase. Neither liver Cu nor serum Cu was influenced (P > 0.05) by injectable Zn. Injectable Zn decreased growth rates in the latter part of the grazing phase but did not affect (P > 0.05) the body weight response during the finishing phase. The concentrations of Zn in liver and serum were not influenced (P > 0.05) by injectable Cu or Zn. Key words: Cattle, grazing, copper, zinc, injectable copper, injectable zinc


2019 ◽  
Author(s):  
Champak Bhakat

In order to decide the optimum time of grazing for camels during hot summer months, 10 growing camel calveswere divided into 2 equal groups. First group was sent for grazing during 10:00 h to 16:00 h daily and second groupallowed for grazing during thermo neutral period. The climatic variables were recorded daily (April 2012 to March2013). The average daily gain and total body weight gain in calves sent for grazing during relatively cool parts ofday (group 2) was significantly higher as compared to group 1 calves sent as per routine farm schedule. Theaverage intake of fodder and water from manger was higher in group 1 calves. The average DMI from manger forgroup 1 calves was higher as compared to group 2 calves. The comparative biometrics of camel calves in differentgrazing management practices revealed that body length, heart girth, height at wither, neck length were significantly(P&lt;0.01) higher in group 2 calves as compared to group 1 calves. After 180 days of experimentation, humpcircumference vertical and hind leg length were significantly (P&lt;0.05) increased in group 2 as compared to group1. Analysis of recorded data of climatic parameters revealed that average maximum temperature was higher duringJune 2012. The values of THI also were higher in monsoon and post monsoon months hence the practice of sendingcamel calves during relatively comfortable part of hot and hot humid months was successful in getting good growth.The relative humidity was significantly higher during morning as compared to evening period for all months. TheTHI was significantly lower during morning as compared to evening hours for all months in different climate forwhole year. Economic analysis reveals that the cost of feed per kg body weight gain was quite less in group 2 ascompared to group 1. So the practice of grazing of camel calves during cool hours of day remain profitable forfarmers by looking at the body weight gain and better body conformation in climate change condition.


2002 ◽  
Vol 45 (6) ◽  
pp. 535-545
Author(s):  
A. D. Mitchell ◽  
A. Scholz ◽  
V. Pursel

Abstract. The purpose of this study was to evaluate the use of a cross-sectional scan as an alternative to the total body DXA scan for predicting the body composition of pigs in vivo. A total of 212 pigs (56 to 138 kg live body weight) were scanned by DXA. The DXA scans were analyzed for percentage fat and lean in the total body and in 14 cross-sections (57.6 mm wide): 5 in the front leg/thoracic region, 4 in the abdominal region, and 5 in the back leg region. Regression analysis was used to compare total body and cross-sectional DXA results and chemical analysis of total body fat, protein and water. The relation (R2) between the percentage fat in individual slices and the percentage of total body fat measured by DXA ranged from 0.78 to 0.97 and by chemical analysis from 0.71 to 0.85, respectively. The relation between the percentage of lean in the individual slices and chemical analysis for percentage of total body protein and water ranged from 0.48 to 0.60 and 0.56 to 0.76, respectively. These results indicate that total body composition of the pig can be predicted (accurately) by performing a time-saving single-pass cross-sectional scan.


1965 ◽  
Vol 16 (4) ◽  
pp. 661 ◽  
Author(s):  
BA Panaretto ◽  
DA Little

The relationship between total body water and red cell volume was determined in a group of non-pregnant crossbred ewes, in an endeavour to obtain a method which did not necessitate the use of radioisotopes for determining body composition. Total body water could be predicted from red cell volume. The 95% confidence interval for a mean value for total body water, predicted from the red cell volume, was ±18.8% of the mean. All other relations which can be derived between the red cell volume and other body parameters depended on this relation. The calculation of body composition from measurements of the red cell volume is discussed.


2001 ◽  
Vol 2001 ◽  
pp. 206-206 ◽  
Author(s):  
R. E. Agnew ◽  
W J McCaughey ◽  
J.D. McEvoy ◽  
D C Patterson ◽  
M G Porter ◽  
...  

San Pietro and Rittenberg (1953) reported that urea appeared to meet all the requirements of a satisfactory tracer. Urea is non toxic, not foreign to the body and it shows an even and rapid distribution throughout the total body water without any physiological effect. For these reasons in addition to its easy and accurate measurement, urea is an ideal candidate tracer to estimate empty body water in vivo. Total body water volume (urea space) can be estimated by dividing the total amount of urea infused by the increase in plasma urea concentration from prior to infusion until 12 or 30 minutes after mean infusion time. Kock and Preston (1973) reported significant relationships between urea space measurements and percentage of empty body fat and water in cattle. However, Andrew et al. (1995) using 21 Holstein cows showed that prediction of empty body water using the urea space technique only explained 31 % of the variation. The objective of this experiment was to use the urea dilution technique to estimate the body composition of lactating dairy cows and produce relationships between urea space and body fat and protein content.


2006 ◽  
Vol 49 (6) ◽  
pp. 561-574
Author(s):  
H. Hoffschulte ◽  
A. M. Scholz

Abstract. Title of the paper: Relationship between body composition measured by dual energy x-ray absorptiometry and reproduction performance in gilts This study was conducted to evaluate the relationship between body composition and reproduction traits in gilts. A number of 176 gilts of different genotypes were categorized in three different groups. Group 0 consists of gilts that were disqualified for breeding according performance test results or showed no occurrence of oestrus. Group 1 consists of all gilts, which farrowed after an artificially insemination. Group 2 was composed of gilts that were artificially inseminated but did not give birth to a litter. Body composition was determined in vivo using dual energy x-ray absorptiometry at a live weight of about 90 kg. Initial reproduction data from group 1 were also evaluated. Results of the performance test showed considerable variation among the different groups. Group 1 was significantly heavier and the daily gain was significantly higher than in group 0. However, results of breeding index and value were clearly below the results of the other two groups. The body fat content was significantly higher in gilts with a litter (>1.65 absolutely) than in gilts without a litter (group 2) and in disqualified gilts (group 0). Group 2 gilts showed the smallest body fat mass. However, the relation between DXA fat percentage and litter size for group 1 showed in tendency that the litter size might decrease with an increasing fat content of gilts. Therefore, an optimum body fat content for conventional breeding gilts of European or American origin needs to be determined for a maximum fertility.


2019 ◽  
Vol 12 (2) ◽  
pp. 677-682
Author(s):  
Yakaiah Vangoori ◽  
Anusha Dakshinamoorthi ◽  
S. Kavimani

The effect of the ethanolic extract of Myristica fragrans was evaluated on cafeteria diet induced body weight, glucose and lipid elevations in albino rats. 30 rats were taken randomly and divided into five groups and six each. Group-1 normal control and Group 2-5 were give cafeteria diet for 6 weeks to induce obesity and treatment period was 10 weeks. After 70 days of treatment, the extract, at doses of 200 and 400mg/kg, significantly reduced the body weight, glucose and lipid levels (p < 0.001) dose dependently. The standard drug Orlistat at 50mg/kg effectively prevented the body weight, glucose and lipid levels when compared with control and test groups. With these observations and previous data, the study concludes that Myristica fragrans extract can stimulate AMP-Kinase enzyme system and can reduce glucose and lipid concentrations. This may be useful for obesity treatment.


2019 ◽  
Vol 27 (1) ◽  
pp. 164-170
Author(s):  
Hawraa Hamed Naji ◽  
Oday Suliaman Khudhair ◽  
Amer Jebur Opyas ◽  
Firas Hussain Kadhim Albawi

Study was conducted to evaluate the effect of (Myrtus communis) oil on the weight of body and  some Hematological in the local male rabbits. (15) rabbits average (1078-1088 ) gram were divided to  (3) groups, every group  (5) rabbits, group (1) the control gives only (0.2) ml tap water orally, while group (2), (3) gives Myrtle oil  (0.1) ml/kg,(0.2) ml/kg respectively orally for (2) month.  We conducted that the administration of Myrtle oil produces a significance decrease (P˂0.01) at 0.1ml/Kg.B.W. and 0.2ml/Kg.B.W in the body weight, there is a significance increase (P˂ 0.05)  at 0.1ml/Kg.B.W.  in values of RBCs, WBCs, Hb and PCV,  there is a significance decrease (P<0.05) at 0.2ml/Kg.B.W. in values of RBCs,WBCs, Hb and PCV. While there is no significance) P˂ 0.05) in the value of PLT. We concluded that, the administration of Myrtle oil in low dose produces good effects whereas administration of it in high dose produce bad effects in the body functions.


2012 ◽  
Vol 55 (4) ◽  
pp. 356-363 ◽  
Author(s):  
A. D. Mitchell ◽  
T. G. Ramsay ◽  
T. J. Caperna ◽  
A. M. Scholz

Abstract. The growth and composition of the neonatal pig is of interest because of potential impact on subsequent growth and finally, composition at market weight. The purpose of this study was to compare at weaning the growth and body composition of the largest and smallest pigs from each of 38 litters. At weaning (27±1.7 d) the largest (9.3±1.1 kg) and smallest (6.2±1.5 kg) pigs were selected for body composition measurement by dual energy X-ray absorptiometry (DXA). The body composition of the largest pigs consisted of 38 % more fat, 32 % more lean, and 29 % more bone mineral content (P<0.001). However, when expressed as a percentage of body weight, there was no difference in the fat, lean or bone mineral content content of the two groups of pigs (P>0.05). A second study consisted of 12 pairs of pigs from 8 litters that were selected on the basis of having the same birth weight, but one pig out gaining the other by at least 50 g/day. At 21 days of age the selected pigs were scanned by DXA. For both groups combined, the correlation (r) between body weight and lean mass was 0.99, between body weight and fat mass it was 0.87, and between body weight at birth and body weight at weaning it was 0.56. The results of these studies revealed that, at weaning, the fastest and slowest growing pigs had similar proportions of fat, lean and bone mineral and, consistent with previous results, the rates of both fat and lean deposition were highly correlated (P<0.001) with total body growth rate.


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