Sperm characteristics and growth of Rhamdia quelen males fed on rations formulated with vegetable food and different digestible energy levels supplied by soy bean oil / Short Communication Características espermáticas e crescimento de machos Rhamdia quelen alimentados com rações formuladas com alimentos vegetais e diferentes níveis de energia digestível fornecidos pelo óleo de soja

One hundred and sixty pigs weaned at 2 weeks were allotted at an average initial weight of 3.8 kg to two experiments to examine the effects of diets based on barley or wheat as the cereal component and having digestible energy (DE) concentrations ranging from 2.8 to 3.6 Mcal/kg. Protein was in constant ratio to DE (15.2 kcal DE/g protein). Very high mortality was experienced on the lower energy levels, although the inclusion of 5% molasses in the formulation reduced mortality. Among surviving pigs, growth rate was significantly reduced at lower energy concentrations. The optimum DE level for maximum gain was 3.2 Mcal in the first experiment and 3.4 Mcal/kg in the second. The efficiency of utilization of DE for growth was best at a DE concentration of 3.2 Mcal/kg in the first experiment but did not vary in the second. Digestibility of dietary protein increased with increasing dietary DE but nitrogen (N) retention as percentage of N intake or of digestible N was not significantly influenced by DE in the diet.

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Impact of digestible energy levels at three different dietary amino acid levels on growth performance and protein accretion in Atlantic salmon

Aquaculture Research ◽

10.1111/j.1365-2109.2009.02235.x ◽

2010 ◽

Vol 41 (3) ◽

pp. 373-384 ◽

Cited By ~ 7

Author(s):

Adel El-Mowafi ◽

Kari Ruohonen ◽

Ernst Morten Hevrøy ◽

Marit Espe

Keyword(s):

Amino Acid ◽

Atlantic Salmon ◽

Growth Performance ◽

Energy Levels ◽

Digestible Energy ◽

Dietary Amino Acid ◽

Amino Acid Levels

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Nutrition of Genetically Improved Farmed Tilapia (GIFT) in biofloc technology system: Optimization of digestible protein and digestible energy levels during nursery phase

Aquaculture ◽

10.1016/j.aquaculture.2020.734998 ◽

2020 ◽

Vol 521 ◽

pp. 734998 ◽

Cited By ~ 4

Author(s):

Tayna Sgnaulin ◽

Emerson Giuliani Durigon ◽

Sara Mello Pinho ◽

Gabriela Tomas Jerônimo ◽

Diogo Luiz de Alcantara Lopes ◽

...

Keyword(s):

Energy Levels ◽

System Optimization ◽

Digestible Energy ◽

Technology System ◽

Genetically Improved ◽

Biofloc Technology ◽

Digestible Protein

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Optimum protein and digestible energy levels in diets for Tilapia nilotica.

NIPPON SUISAN GAKKAISHI ◽

10.2331/suisan.51.141 ◽

1985 ◽

Vol 51 (1) ◽

pp. 141-146 ◽

Cited By ~ 22

Author(s):

Ki-Wei WANG ◽

Toshio TAKEUCHI ◽

Takeshi WATANABE

Keyword(s):

Energy Levels ◽

Digestible Energy ◽

Tilapia Nilotica

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Growth, feed utilization and body composition of black catfish, Rhamdia quelen, fry fed diets containing different protein and energy levels

Aquaculture ◽

10.1016/j.aquaculture.2003.08.006 ◽

2004 ◽

Vol 231 (1-4) ◽

pp. 435-444 ◽

Cited By ~ 75

Author(s):

M. Salhi ◽

M. Bessonart ◽

G. Chediak ◽

M. Bellagamba ◽

D. Carnevia

Keyword(s):

Body Composition ◽

Energy Levels ◽

Feed Utilization ◽

Rhamdia Quelen

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RESPONSE OF MALE AND FEMALE WEANLING RATS TO DIETS OF DIFFERENT DIGESTIBLE ENERGY CONCENTRATIONS AND TO SUPPLEMENTATION WITH VITAMIN E, USING BARLEY OR WHEAT AS CEREAL SOURCES

Canadian Journal of Animal Science ◽

10.4141/cjas72-009 ◽

1972 ◽

Vol 52 (1) ◽

pp. 81-86 ◽

Cited By ~ 1

Author(s):

J. F. O’GRADY ◽

J. P. BOWLAND

Keyword(s):

Vitamin E ◽

Energy Levels ◽

Maximum Growth ◽

Female Rats ◽

Male Rats ◽

Male And Female ◽

Digestible Energy ◽

Male And Female Rats ◽

Weanling Rats ◽

Better Than

Sixty-four weanling rats were used in an experiment lasting 6 weeks to test the response of male and female rats to diets having 2.8, 3.0, 3.2, and 3.4 Mcal digestible energy (DE) per kg, where barley and wheat were used as the cereal sources and diets were supplemented with 22 IU vitamin E/kg or unsupplemented. The use of wheat or barley did not influence the performance of female rats but males utilized barley-based diets better than wheat diets and gained more in some weeks, though not overall. Male rats did not respond to vitamin E supplementation but females consumed more of the vitamin E-supplemented diets and grew 6% faster (P < 0.10). Except in the 1st week, females ate more of the lower energy than of the higher energy diets and so DE concentration did not influence rate of gain. Males were not able to adjust food intakes to compensate for dietary energy levels and needed a DE concentration of 3.2 Mcal/kg diet for maximum growth. The data indicate that there is a sex difference in growing rats insofar as DE concentration of the diet required for maximum gain is concerned.

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Effects of dietary energy level on reproductive characteristics in male African giant rat Cricetomys gambianus

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20200330 ◽

2020 ◽

Vol 9 (2) ◽

pp. 468

Author(s):

Astride Martine Megnimeza Tsambou ◽

Augustave Kenfack ◽

Bertin N. Vemo ◽

Séverin Fonkem ◽

Lavoisier Tadiesse Fonou ◽

...

Keyword(s):

Energy Level ◽

Energy Levels ◽

Serum Testosterone ◽

Serum Testosterone Level ◽

Dietary Energy ◽

Digestible Energy ◽

Young Males ◽

Reproductive Characteristics ◽

Cricetomys Gambianus ◽

African Giant Rat

Background: The study was conducted to assess the effects of the digestible dietary energy level on some reproductive characteristics in African giant rat.Methods: Sixteen young males were randomly distributed into 4 groups of 4 animals each. To each group was attributed randomly one of the 4 dietary energy levels (3600 Kcal/kg, 3800 Kcal/kg, 4000 Kcal/kg or 4200 Kcal/kg). The daily distribution of experimental diets last six months, ie ended when cricetoma were 8 months old. At the end of that period, all animals were sacrificed.Results: Results showed an increase in testes weight with the augmentation of dietary digestible energy level (0.79±0.13, 0.88±0.17, 1.02±0.28 and 1.02±0.16 respectively for 3600 Kcal/kg, 3800 Kcal/kg, 4000 Kcal/kg and 4200 Kcal/kg). The serum testosterone level, the sperm mobility (76.67, 62, 63 and 57%) and count per cauda epididymis (18.25±3.75, 16.38±4.19, 10.83±2.02 and 10.13±2.9) and per gram cauda epididymis (39.09±11.82, 27.01±4.23, 15.41±3.31 and 17.40±7.28) significantly (p<0.05) decreased with the increasing level of digestible energy in the feed.Conclusions: The dietary digestible energy level that gave the higher reproductive performances in male African giant rat was 3600 Kcal/kg DM.

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Gross energy levels in regrowths of six pasture species, and relations with digestibility and chemical composition

Australian Journal of Experimental Agriculture ◽

10.1071/ea9740033 ◽

1974 ◽

Vol 14 (66) ◽

pp. 33 ◽

Cited By ~ 3

Author(s):

PJ Michell

Keyword(s):

Chemical Composition ◽

Lolium Perenne ◽

White Clover ◽

Crude Protein ◽

Dry Matter ◽

Energy Levels ◽

Dactylis Glomerata ◽

Digestible Energy ◽

Dry Matter Digestibility ◽

Gross Energy

Gross energy levels and energy digestibilities were determined on 80 single species pasture samples of known dry matter digestibility. Crude protein, ash and ether extract levels were also determined. The pastures consisted of regrowths of six species, Trifolium repens (White clover cv. Grasslands Huia), Lolium perenne x multiflorum (manawa ryegrass cv. Grasslands Manawa), Lolium (multiflorum x perenne) x L. perenne (ariki ryegrass cv. Grasslands Ari ki), Lolium perenne (perennial ryegrass cv. Tasmanian No. 1), Dactylis glomerata (currie cocksfoot cv. Currie) and Dactylis glomerata (apanui cocksfoot cv. Grasslands Apanui), harvested eight times between May 1969 and August 1970. The gross energy levels in pasture dry matter and pasture digestible organic matter were highest with white clover (means 4.64 and 4.98 K cal g-1) and lowest with the ryegrasses (4.50 and 4.80 K cal g-1). They were also higher in the winter (4.60 and 4.91), autumn (4.53 and 4.90) and spring (4.56 and 4.86), and lower in the summer (4.49 and 4.77). Relations between gross energy levels and chemical composition were weak. The strongest relation was with crude protein content (r = +0.41, P < 0.01). Relations of energy digestibility and digestible energy level in pasture dry matter, with dry matter digestibility had high correlations (r = +0.97, P < 0.01, and r = +0.92, P < 0.01) and were similar to previously published relations. However, seasonal differences occurred in both relations and, at low dry matter digestibilities, winter pasture had higher energy digestibilities and higher levels of digestible energy than spring-summer pasture. Species differences occurred in the latter relation and, at high dry matter digestibilities, white clover had higher levels of digestible energy than the grasses.

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