scholarly journals Pattern of gastric emptying in the pig: Relation to feeding

1990 ◽  
Vol 64 (1) ◽  
pp. 45-58 ◽  
Author(s):  
P. C. Gregory ◽  
M. Mcfadyen ◽  
D. V. Rayner
Keyword(s):  
Body Weight ◽  
Gastric Emptying ◽  
Dry Matter ◽  
The Body ◽  
Lag Phase ◽  
Gastric Evacuation ◽  
Biphasic Pattern ◽  
Solid Diet ◽  
The Relationship ◽  
Meal Consumption

The aims of the present study were to compare the gastric emptying of dry matter (DM) and liquids during the feeding period with that following meal consumption, to clarify the relationship between feeding and gastric emptying, and to investigate how gastric emptying changes in growing animals. The studies were performed in pigs fitted with a gastric cannula and fed on a normal finely ground solid diet mixed with water containing CrEDTA as liquid marker. Gastric emptying was measured using a gastric evacuation technique. It was observed that between 0.75 and 6 h after feeding the total amounts emptied increased, but the proportion of the meal emptied fell, with increase in meal size; emptying of both DM and liquids with large and small meals followed and exponential pattern. In contrast, while the animals were feeding, there was linear and rapid emptying of both DM and liquids following a very short (approximately 2 min) lag phase before emptying began. The rate of emptying increased linearly with body-;weight (by 0.55 g DM/min and by 0.24 ml/min per kg body-weight over the range 58–200 kg) such that the emptying of digestible energy per kg metabolic body-weight (W0.75) was roughly maintained (between 2.9 and 3.2 kJ/min per kg W0.75). This suggests that the rate of emptying may be linked in some way with the metabolic requirements of the body. The biphasic pattern of gastric emptying observed is probably the intrinsic pattern of emptying of a meal which does not require breakdown of particles before emptying can occur.

Digestibility of Nutrients as Influenced by Supplementation of Exogenous Fibrolytic Enzymes in Dry Non-pregnant Cows

2019 ◽  
Vol 14 (04) ◽  
Author(s):  
P. M, Lunagariya ◽  
R. S. Gupta ◽  
S. V. Shah ◽  
Y. G. Patel
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Dairy Cows ◽  
Dry Matter ◽  
Body Weight Gain ◽  
The Body ◽  
Neutral Detergent Fiber ◽  
Acid Detergent Fiber ◽  
Fibrolytic Enzymes ◽  
Nitrogen Free Extract

The study was planned to evaluate the effect of exogenous fibrolytic enzymes (EFE) supplementation for 56 days @ 240 mg/kg total mixed ration (TMR) on digestibility of dry matter and nutrients in dairy cows. Six dry non-pregnant cows were assigned in each treatment with and without EFE. The digestibility trial of seven days was conducted after 49 days of feeding. Dry matter and nutrients intake of cows was not influenced by EFE. The supplementation of EFE had improved digestibility of dry matter, organic matter, crude fiber, neutral detergent fiber, cellulose (p less than 0.01), as well as digestibility of nitrogen-free extract and acid detergent fiber, was also higher (pless than 0.05). The body weight gain of cows was higher on the supplementation of EFE in TMR. The study concluded that feeding exogenous fibrolytic enzymes (240 mg/kg) supplemented TMR improved digestibility of dry matter and nutrients, which was reflected as higher body weight gain in dry non-pregnant Gir and crossbred dairy cows.

Digestive Response of Rainbow Trout, Salmo gairdneri, to Pellet Diets

1969 ◽  
Vol 26 (7) ◽  
pp. 1801-1812 ◽  
Author(s):  
John T. Windell ◽  
David O. Norris ◽  
James F. Kitchell ◽  
James S. Norris
Keyword(s):  
Body Weight ◽  
Rainbow Trout ◽  
Dry Matter ◽  
Laboratory Experiments ◽  
Corn Oil ◽  
Saturated Fat ◽  
Methyl Cellulose ◽  
Salmo Gairdneri ◽  
Gastric Evacuation ◽  
Gastric Contents

Quantitative data are presented for three laboratory experiments concerning rate of gastric evacuation of pellets (fed in gelatin capsules) and pellet components. Rainbow trout, Salmo gairdneri, acclimated to a constant water temperature of 15 C were killed 12 hr after consuming an experimental meal. Subtraction of amount of dry matter remaining at autopsy from dry matter consumed yielded amount of food digested or evacuated or both, from the stomach per unit time.Meals of encapsulated pellet were evacuated from the stomach more rapidly (65.8% decrease in 12 hr) than encapsulated corn oil (42.6%), gelatin (50.8%), a combination of corn oil and gelatin (47.3%), saturated fat (28.8%), or methyl cellulose (50.3%).Groups of fish consuming five capsules equal to approximately 0.65 % of their body weight evacuated 35.9, 45.1, 64.2, 95.5, and 100% at intervals after killing from 6 to 36 hr, respectively. Similar groups consuming seven capsules equal to approximately 1.0% of their body weight evacuated 23.7, 57.9, 70.5, and 86.6% at intervals after killing from 4 to 20 hr, respectively.Ten groups of trout consuming amounts of dry matter equal to 0.24, 0.40, 0.74, 1.11, 1.31, 1.19, 1.59, 1.56, 1.91, and 2.26% of their body weight evacuated 90.7, 81.3, 64.2, 57.9, 56.6, 52.5, 53.4, 51.3, 58.7, and 50.0% in 12 hr, respectively. Gastric motility remains relatively constant once food has entered the stomach. However, when larger meals are fed a greater quantity is evacuated per unit time. This could only be accomplished by changes in volume of gastric contents pumped per peristaltic stroke or number of strokes per unit time.

scholarly journals Milk yield and composition, feed intake and stocking rate of crossbread cows in tropical grasses managed in a rotational grazing system

2010 ◽  
Vol 39 (7) ◽  
pp. 1548-1557 ◽  
Author(s):  
Nelson Massaru Fukumoto ◽  
Julio Cesar Damasceno ◽  
Fermino Deresz ◽  
Carlos Eugênio Martins ◽  
Antônio Carlos Cóser ◽  
...  
Keyword(s):  
Body Weight ◽  
Milk Yield ◽  
Dry Matter ◽  
Experimental Period ◽  
The Body ◽  
Dry Matter Intake ◽  
Panicum Maximum ◽  
Stocking Rate ◽  
Rotational Grazing ◽  
Grazing System

The objective of this study was to evaluate milk yield and composition, dry matter intake, and stocking rate in pastures with tanzania grass (Panicum maximum cv. Tanzânia), star grass (Cynodon nlemfuensis cv. Estrela-Africana), and marandu grass (Brachiaria brizantha cv. Marandu). The grasses were managed in a rotational grazing system with Holstein x Zebu crossbreed cows, with a 30-day resting period and three days of paddock occupation. The pastures were fertilized with 1,000 kg/ha/year using the 20:05:20 (NPK) formula, split in three applications during the rainy season. It was used a complete random block experimental design with three factors being studied and two replications. In the experiment, four cows/paddock were used and, when it was necessary, regulator animals were added in order to obtain a supply of 7% body weight green forage dry matter. The animals were individually fed concentrate at 2 kg/day during the experimental period. Milk yield did not differ among the three grasses, with values of 9.1; 9.1; and 8.7 kg/cow/day for pastures with tanzania grass, star grass and marandu grass, respectively. Similarly, grass did not affect milk chemical composition. Stocking rate was similar among the three grasses, with values of 4.6; 4.5 and 5.0 UA/ha for tanzania grass, star grass and marandu grass, respectively. The highest dry matter intake was observed for tanzania grass with 2.6% of the body weight while stargrass (2.3%) and marandu grass (2.4%) did not differ among each other. The highest dry matter intake on tanzania grass pasture was not reflected on milk yield per animal. Milk yield and composition and stocking rate are similar among the evaluated grasses.

The development of the lamb with particular reference to the alimentary tract

1964 ◽  
Vol 6 (2) ◽  
pp. 169-178 ◽  
Author(s):  
R. V. Large
Keyword(s):  
Body Weight ◽  
Alimentary Tract ◽  
Live Weight ◽  
The Body ◽  
Root Transformation ◽  
Feeding Regimes ◽  
Gut Fill ◽  
Relationship Of ◽  
The Relationship

1. Thirty Suffolk × Half bred lambs were slaughtered at the following ages: two twin lambs at birth and two singles and two twins at 1, 2, 3, 4, 6, 8 and 16 weeks of age.2. The following weights were recorded: live-weight immediately before slaughter; and carcass, head, skin, feet, alimentary tract, heart, liver, kidneys, lungs and trachea, and blood immediately afterwards.3. The alimentary tract was emptied and weighed in four separate parts; reticulo-rumen, omasum-abomasum, small intestine, large intestine.4. The volumes of the reticulo-rumen and the omasum-abomasum were measured by immersing in water and filling the organs with water to 2 cm. pressure.5. The in vitro digestive efficiency of rumen liquor from lambs of 1, 2, 3 and 4 weeks of age was assessed.6. Empty body weight was considered to be valuable in comparing animals of different ages or from different feeding regimes or at different times of the year because variations in gut ‘fill’ were eliminated.7. There were no differences between singles and twins in the relationship of the fresh weights of the parts of the body to empty body weight, except that development of the liver and the blood was rather slower for singles.8. Little evidence was found of a difference in rate of development of the alimentary tract between singles an d twins, although the log an d square root transformation suggested a possible difference in reticulo-rumen size in favour of twins, significant at the 5% level.

scholarly journals INJECTABLE COPPER AND ZINC FOR GRAZING YEARLING STEERS

1987 ◽  
Vol 67 (4) ◽  
pp. 1033-1041
Author(s):  
F. A-R. SANKOH ◽  
R. J. BOILA
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Phase 1 ◽  
Sole Source ◽  
The Body ◽  
Mineral Supplements ◽  
Copper Zinc ◽  
Group 2 ◽  
Cu And Zn ◽  
Group 1

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

scholarly journals The relationship between body weight and exterior measurements in domestic ostriches during the first four months after hatching

2007 ◽  
Vol 23 (1-2) ◽  
pp. 13-20
Author(s):  
Andrey Kurtenkov
Keyword(s):  
Body Weight ◽  
Detailed Analysis ◽  
The Body ◽  
The Other ◽  
Phenotypic Correlation ◽  
Other Hand ◽  
The One ◽  
The Relationship ◽  
Selection Of

It is related leg problems to the realization of the necessity of doing a detailed analysis of the phenotype correlations between body weight and exterior measurements. As a result of the study, lower coefficients have been obtained of the correlation between the girth of the tarso metatarsus on one hand, and the body weight and the girth behind the wings, on the other hand (respectively 0.563 and 0.608), compared with the one between the body weight and the girth behind the wings (0.898). It is advisable in the selection of ostriches to take into consideration the necessity of a higher phenotypic correlation between the girth of the tarso metatarsus on the one hand, and the body weight and the girth behind the wings on the other hand, with a view to preventing leg problems.

scholarly journals Evaluasi Pertambahan Bobot Badan Sapi Aceh Jantan yang Diberi Imbangan Antara Hijauan dan Konsentrat di Balai Pembibitan Ternak Unggul Indrapuri

2013 ◽  
Vol 13 (2) ◽  
pp. 41-46 ◽  
Author(s):  
Yunasri Usman ◽  
Eka Meutia Sari ◽  
Nuzul Fadilla
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Analysis Data ◽  
The Body ◽  
Dry Matter Intake ◽  
Anova Analysis ◽  
Randomized Design ◽  
Daily Gain ◽  
Research Analysis

The evaluation of the Aceh cattle bulls weight which compensated between forage and concentrate at Superior Livestock Place in IndrapuriABSTRACT. This research was conducted at Superior Livestock Place in Indrapuri District, Aceh Besar  which lasted for 42 days. It was started on November 28th 2012 until January 9th 2013. This research was aims to know about the average daily gain for Aceh cattle bulls which compensated between forage and concentrate by using 12 bulls aged 2-2,5 years old. The design was used a Randomized Design Groups with 4 feed treatments and 3 repetitions. The feed percentages between forage and concentrate are ration A (100% forages), B (80%)forages and 20% concentrates), C (60% forages and 40% concentrates), and D (40% forages and 60% concentrates). The research analysis data were obtained by using ANOVA (Analysis of Variance). The parameters which observed in this study was the average daily gain, consumption, conversion, and efficiency rations. The result showed that the ration dry matter intake highly significantly (P0,01) between treatment A (4,45 Kg), and B (3,61 Kg), C (2,72 Kg), and D (3,38 Kg), but the treatment B and D highly significantly than treatment C (P0,01), the best ration consumption were derived from treatment C. The body weight Kg/bull/day significantly (P0,05) between treatment A (0,47 Kg) and B (0,65 Kg), C (0,60 Kg), and D (0,61 Kg), the best average daily gain were derived from treatment B. The conversion ration showed that highly significantly (P0,01) between treatment A (9,55 Kg), and B (5,55 Kg), C (4,60 Kg), and D (5,59 Kg), the best ration conversion were derived treatment C. Similarly, the efficiency ration showed that highly significantly (P0,01) between treatment A (0,11%), and B (0,18%), C (0,22%), and D (0,18%), C is the best ration efficiency on the treatment.

Plasma ANP levels and protein extravasation during graded expansion with equilibrated whole blood

1996 ◽  
Vol 271 (3) ◽  
pp. R601-R609 ◽  
Author(s):  
V. L. Tucker
Keyword(s):  
Body Weight ◽  
Volume Expansion ◽  
Venous Pressure ◽  
The Body ◽  
Protein Distribution ◽  
Central Venous ◽  
Pentobarbital Sodium ◽  
Protein Extravasation ◽  
Albumin Clearance ◽  
The Relationship

The relationship between plasma immunoreactive atrial natriuretic peptide (irANP) and radiolabeled albumin clearance (CBSA) in multiple tissues after graded volume stimuli was examined. To obtain a pure volume stimulus, pentobarbital sodium-anesthetized rats (5 or 6 per group) were equilibrated with a reservoir of blood by a femoral arteriovenous shunt, and volume expansion (VE) was produced by adjusting reservoir outflow. Peak increases in central venous pressure (CVP) during VE equal to 2 and 4% of the body weight over 5 min were 3.6 +/- 0.2 and 7.0 +/- 0.3 mmHg, and plasma irANP levels measured at 40 min post-VE were elevated 1.9- and 4.1-fold above baseline, respectively. Graded increases in CBSA measured between 5 and 35 min post-VE occurred in selective tissues, including intestine, visceral fat, lung, and muscle (P < or = 0.05). In separate animals, the level of VE was maintained after 2% VE by slower administration of an additional 2% VE for the remaining 30 min. This resulted in a more sustained CVP elevation and larger increases in irANP levels and CBSA compared with either 2 or 4% VE. Furthermore, equations derived from previous work in this laboratory involving intravenous administration of ANP predicted the magnitude of CBSA elevation during maintained VE. These findings support a role for ANP in regulating transcapillary protein distribution during acute intravascular expansion.

scholarly journals PSX-2 Growth and lactating performance of ewes fed with different energy levels

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 467-468
Author(s):  
Fernanda F Santos ◽  
Luciano Brochine ◽  
Vanderlei Benetel Junior ◽  
Maria Laura R Coelho ◽  
Augusto H Gameiro ◽  
...  
Keyword(s):  
Body Weight ◽  
Milk Production ◽  
Body Condition ◽  
Dry Matter ◽  
Body Condition Score ◽  
Energy Levels ◽  
The Body ◽  
Metabolizable Energy ◽  
Significant Difference ◽  
Condition Score

Abstract The objective of this study was to evaluate the milk production, body weight, and body condition score (BCS) of ewes fed with different energy levels. Seventy-one ewes were used and distributed in three treatments according to the metabolizable energy (ME, Mcal/kg) levels in the diet: CTL = according to the NRC (2007) recommendation for each stage (gestation and lactation); PLUS = CTL plus 10% of ME per kilogram of dry matter; LESS = CTL less 10% ME per kilogram of dry matter. Body weight and body condition score were evaluated a week before the expected date of parturition, a week after giving birth, and at weaning (60 days). Dairy production was evaluated at 20, 30, 40, 50 and 60 days after giving birth by the indirect method of the two weighing. The experimental design was analyzed as randomized complete blocks. There were no differences on milk production during almost all the lactation curve. Only on day 50 (P = 0.051), CTL was still at peak, while LESS and PLUS had already decreased their production. However, at 60 days, all treatments were already with low production, justifying weaning in this period. Results of weight and BCS showed a significant difference in all periods evaluates. Ewes in the PLUS diet had greater BW and BCS. The BCS before giving birth is expected to be over 3.5 and treatment LESS was the only one that did not achieve this score (2.66, 3.37, 3.83 for LESS, CTL, and PLUS, respectively). At weaning, ewes fed PLUS and CTL had BCS of 3.51 and 2.92, respectively, but treatment LESS had only 1.82. That is prejudicial for the next mating seasonal and this animal. We concluded that LESS diet interfered with the body reserves of sheep.

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