Changes in body weight and intestinal absorption during infections with Eimeria acervulina in the chicken

Parasitology ◽  
1970 ◽  
Vol 61 (3) ◽  
pp. 417-424 ◽  
Author(s):  
R. A. Preston-Mafham ◽  
A. H. Sykes

Heavy infections of E. acervulina result in a depression in body weight of the host, but anorexia induced by the disease is not the only factor responsible for this, since normal birds starved to the same extent did not lose as much weight. It was shown that the absorption of l-histidine and glucose from the infected part of the small intestine was depressed and may be a contributory factor to this weight loss; restricted feed intake alone tended to increase, rather than decrease, absorption.

2017 ◽  
Vol 49 (5) ◽  
pp. 1025-1033 ◽  
Author(s):  
Gerardo Ordaz-Ochoa ◽  
Aureliano Juárez-Caratachea ◽  
Rosa Elena Pérez-Sánchez ◽  
Rafael María Román-Bravo ◽  
Ruy Ortiz-Rodríguez

1979 ◽  
Vol 30 (1) ◽  
pp. 135 ◽  
Author(s):  
RF Thornton ◽  
RL Hood ◽  
PN Jones ◽  
VM Re

Some attributes of the body composition of Dorset Horn x Merino wethers, which were either continuously grown or subjected to one or two periods of starvation-weight loss, realimentation and compensatory growth, were studied. Periods of restricted feed intake were imposed when liveweights were either below (23 kg) or above (43 kg) the level generally regarded as a mature liveweight (c. 31 kg) for such sheep. Loss of liveweight resulted in different responses in the meat of immature and mature animals. The meat from immature sheep was depleted of fat, whereas that from mature sheep increased in fat content. Loss of fat from the meat of immature sheep was associated with both atrophy and hypoplasia of the subcutaneous adipose cells, but in mature sheep there was atrophy without hypoplasia of these adipose cells. Although the greatest loss of fat was from the meat, proportionately more fat was lost from the offal, particularly in mature sheep. The amount of protein in the carcass meat was similar in control, starved, or realimented sheep of the same body weight. During the first few days of realimentation the sheep consumed three to four times as much food per day as during the starvation periods; the apparent digestibility of the food was increased from 53–68% to 80–90%; liveweight gain was 500–600 g/day, and there were increases in fat, water and protein in the meat of realimented animals. Sheep which had been starved and realimented, either once or twice, rapidly achieved liveweights equal to those of continuously grown animals and were similar to them in both body and meat composition.


Parasitology ◽  
1968 ◽  
Vol 58 (3) ◽  
pp. 691-700 ◽  
Author(s):  
P. L. Long

Eimeria praecox produced less effect on body-weight gain and food consumption than E. acervulina. No deaths occurred and no weight loss followed infection with doses of oocysts up to 10. However, there was a depression of body-weight gain in birds infected with both species and changes in the permeability of the intestine were noted from as early as 3½ h after infection. This suggests that increased intestinal permeability is not the major factor in the greater pathogenicity of E. acervulina compared with E. praecox. Eimeria acervulina produced considerably greater effects on the host as evidenced by mortality, body weight gain and food consumption.I wish to thank Mr B. J. Millard and Mr M. Shirley for technical assistance and Dr B. M. Freeman for help with the statistics in Table 2.


1969 ◽  
Vol 20 (2) ◽  
pp. 405 ◽  
Author(s):  
AB Carnegie ◽  
NM Tulloh ◽  
RM Seebeck

This paper describes an investigation of the effects of developmental growth and body weight loss on the alimentary tract of Angus steers. Two groups of steers were used: group A which grew continuously, and group B which grew like group A and were then subjected to a period of weight loss before slaughter. Corresponding animals in both groups were killed at the same body weights. Group A animals (and group B animals before the commencement of weight loss) were fed on a high quality ration ad libitum. During their period of weight loss the group B animals were given a restricted intake of oaten straw. Statistical analysis was by analysis of covariance of the weights of components converted to logarithms. As empty body weight (EBW) increased, the weight of the empty, fat-trimmed alimentary tract (GT), the weight of each component of GT (oesophagus, rumenreticulum, omasum, abomasum, small intestine, caecum, colon-rectum), and the weight of contents in each component of GT decreased as proportions of EBW. Apart from the oesophagus and the caecum, GT and each of its components did not change significantly in weight as the live body weight of the animals increased from 250 to 400 kg. Thus, developmental growth of the alimentary tract had almost finished when the experiment began. The effect of weight loss on the components of the alimentary tract was independent of EBW except for weight of the rumen-reticulum. This component lost weight in all animals but the loss was relatively smaller in the heavier animals than in the lighter ones. When group A and group B animals were compared at the same EBW, the weight of GT in group B animals was significantly less than in the group A animals. However, the components of GT did not all behave in the same way. Thus the weight of the oesophagus was greater, weights of the abomasum and small intestine were less, and weights of the omasum, caecum, and colon-rectum were not significantly changed in group B animals when compared with group A. Also, there was more digesta and its dry matter percentage was less in group B than in group A. The overall loss of weight of GT during body weight loss was an indication that GT was used as a source of protein and energy. The changes in the weights and relative proportions of the components of GT during weight loss were thought to be a reflection of the change both to a poor quality ration and to a reduced food intake.


1962 ◽  
Vol 42 (1) ◽  
pp. 95-101 ◽  
Author(s):  
E. E. Gardiner ◽  
T. M. MacIntyre

Two experiments were conducted to measure some of the effects of varying the length and the degree of feed restriction of confinement-reared pullets on laying-house performance. In general, increases in the length of time of restriction were followed by an increase in the number of days required to reach 50 per cent production, an increase in the initial egg size (first 8000 eggs), and a decrease in body weight at either 21 or 22 weeks of age. Feed restriction, in most cases, changed the pattern of egg production so that the birds came into production later than full-fed birds but subsequently "peaked" at a higher rate of production and maintained a higher rate of production for the remainder of the experimental period. Restricting the feed intake of the growing pullets resulted in a substantial feed saving during the growing period, but had no measurable effect on feed consumption during the laying period.


Author(s):  
YARA ANNOUF ◽  
SHAZA AL-LAHAM ◽  
EYAD AL-SHATTI

Objective: Non-steroidal anti-inflammatory drugs (NSAIDs) have become well known for causing gastroduodenal mucosal damage. In addition, they are also known to affect the small intestine in humans. Amlodipine is a third-generation dihydropyridine-type calcium channel blocker; it can inhibit inflammatory cytokines and enhance antioxidant defenses. The aim of this study was to evaluate the effect of Amlodipine on indomethacin-induced enteropathy in rats. Methods: Enteropathy was induced by subcutaneous indomethacin (Indo) prepared in 5 % sodium bicarbonate administrated at a dose rate of 9 mg/kg for two days at 24h intervals. Amlodipine (10 mg/Kg body weight po) was administrated for seven consecutive days beginning 24 h after the first Indo injection. Rats were sacrificed under ether anesthesia on the 8th day. The small intestinal injury was assessed by body weight loss, small intestine weight/length ratio, macroscopic damage, histological study, as well as by biochemical measurement of reduced glutathione (GSH), lipid peroxides and superoxide dismutase (SOD) activity in the small intestine tissue. Results: The results showed that Amlodipine didn't decrease body weight loss, it decreased small intestine weight/length ratio, macroscopic and microscopic small intestinal damage scores caused by administration of Indo. It also increased SOD activity and decreased lipid peroxidation. The effect on the level of GSH wasn't observed. No statistical significance was observed when previous findings were compared to Indo induced enteropathy group (p>0.05). Conclusion: Amlodipine didn't produce an obvious enhancement in enteropathy induced by Indo in rats.


1969 ◽  
Vol 23 (3) ◽  
pp. 637-646 ◽  
Author(s):  
David S. Madge

1. The effects of dietary antibiotics (penicillin, neomycin or terramycin) on the absorption of D-glucose, D-galactose, L-arginine or L-histidine by the mouse were investigated by using sacs of entire everted ileum.2. Compared with the controls, there was generally an increased absorption of all these solutes. Tissue uptake of the solutes remained unaltered. The inward movement of water into the sacs was increased but was generally independent of solute transport.3. The body-weight decreased slightly and caecal weight increased with penicillin only. The weight of the small intestine decreased with the different antibiotics, and the gut wall became thinner. Faecal fat increased slightly, but not significantly, with neomycin only. Water intake decreased with the different antibiotics.


2012 ◽  
Vol 12 (1) ◽  
pp. 16-22 ◽  
Author(s):  
Yuni Primandini ◽  
Luthfi Djauhari Mahfudz ◽  
Bambang Sukamto

Time interval of supplementation of Morinda citrifolia L. by product on the performance broiler chicken ABSTRACT. The research using Completely Randomized Design with 3x2 factorial arrangement and 4 replicated. Dose of Morinda citrifolia by product (T) that is 0 g/kg ( T0); 0.50 g/kg ( T1); 0.75 g/kg ( T2) and 1.00 g/kg (T3) as first factor and time interval that is continue (A1) and 1 week interval (A2) as second factor. The performance parameters observed were : feed intake, body weight and small intestine measure. The result showed that no significant effect of time interval and interaction between time interval with Morinda citrifolia by product dose (p0.05) on feed intake and small intestine measure. The addition dose of Morinda citrifolia by product increased (p0.05) body weight, there was interaction (p0.05) between time interval and Morinda citrifolia by product dose on body weight.


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