Apparent Digestibility Coefficient And Metabolizable Energy Of Feed Ingredients For The Sea Bream Archosargus Rhomboidafis (L. 1758, Pisces: Sparidae)

SUMMARY1. A split-plot design was used to study apparent digestibility of dry matter, gross energy and nitrogen of a whole grain wheat diet and processed (hammermilled, rolled or hammermilled and then steam-pelleted) wheat diets by eight small (33·9 ± 0·1 kg) and eight large (70±1·7 kg) pigs. Metabolizable energy and nitrogen retention were also studied with the small pigs.2. The processed wheat diets were superior to the whole grain wheat diet in all the parameters measured.3. There were no significant differences between the performance of pigs given the differently processed wheat diets.4. Apparent digestibility of dietary components particularly in the whole wheat diet was significantly higher when diets were given to small pigs than when given to large pigs.

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Methods for predicting the energy value of pet foods

Revista Brasileira de Zootecnia ◽

10.1590/s1516-35982009001300001 ◽

2009 ◽

Vol 38 (spe) ◽

pp. 1-14 ◽

Cited By ~ 3

Author(s):

Carlos Castrillo ◽

Marta Hervera ◽

Maria Dolores Baucells

Keyword(s):

Near Infrared ◽

Metabolizable Energy ◽

Apparent Digestibility ◽

Crude Fibre ◽

Near Infrared Reflectance ◽

Energy Value ◽

Close Relationship ◽

Accuracy Of Prediction

The energy value of foods as well as energy requirements of dogs and cats is currently expressed in terms of metabolizable energy (ME). The determination of ME content of foods requires experimental animals and is too expensive and time consuming to be used routinely. Consequently, different indirect methods have been proposed in order to estimate as reliably an accurately as possible the ME content of pet food. This work analyses the main approaches proposed to date to estimate the ME content of foods for cats and dogs. The former method proposed by the NRC estimates the ME content of pet foods from proximal chemical analysis using the modified Atwater factors, assuming constant apparent digestibility coefficients for each analytical fraction. Modified Atwater factors systematically underestimate the ME content of low-fibre foods whereas they overestimate those that are high in fibre. Recently, different equations have been proposed for dogs and cats based in the estimation of apparent digestibility of energy by the crude fibre content, which improve the accuracy of prediction. In any case, whatever the method of analysis used, differences in energy digestibility related with food processing and fibre digestibility are unlikely to be accounted for. A simple in vitro enzymatic method has been recently proposed based in the close relationship that exist between energy digestibility and organic matter disappearance after two consecutive enzymatic (pepsin-pancreatin) incubation of food sample. Nutrient composition and energy value of pet foods can be also accurately and simultaneously predicted using near infrared reflectance spectroscopy (NIRS).

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The Apparent Digestibility of Nutrients and Energy Value to Pigs of Plantains (Musa Sapientum Var. Paradisiaca Linn)

Nigerian Journal of Animal Production ◽

10.51791/njap.v1i2.2057 ◽

2021 ◽

Vol 1 (2) ◽

pp. 184-191

Author(s):

V. A. Oyenuga ◽

B. L. Fetuga

Keyword(s):

Crude Protein ◽

Dry Matter ◽

Nitrogen Retention ◽

Basal Diet ◽

Metabolizable Energy ◽

Apparent Digestibility ◽

Crude Fibre ◽

Large White ◽

High Dry Matter ◽

Nitrogen Free Extract

The proximate and mineral constituents of six plantain forms, raw green plantain (RGP), cooked green plantain (CGP), raw ripe plantain (RRP), cooked ripe plantain (CRP), green plantain meal (GPM) and ripe plantain meal (RPM) were determined by chemical analysis. 24 large white barrows, weighing initially, between 40-45 kg., were used to study the apparent digestibility of nutrients, digestible energy (DE), metabolizable energy (ME), metabolizable energy corrected for nitrogen retention (ME(n) and total digestible nutrients when the plantains served as the only source of nutrients. In a second experiment ME and ME(n) were measured for the plantain forms using 28 Large White barrows, with diets in which the plantains replaced 50% of maize in a basal diet. All the plantain forms had low fat, crude fibre and crude protein content but high in nitrogen-free extract, phosphorus, potassium and Iron. Identically high dry matter (D.M.) and nitrogen-free extract (N.F.E.) digestion coefficients were obtained for all the plantain forms except RPM, which had significantly lower values. Digestion coefficients for crude protein (46.9, 53.6, 51.8, 34.3,-32.7 %), crude fibre, (46.6, 49.5, 58.7, 62.6, 56.9, 39.6 %), ether extract (55.9, 56.6, 66.9, 69.2, 54.7 and 34.6 %) for RGP, CGP, RRP, CRP, GPM and RPM respectively were considerably lower than for D.M. and N.F.E. The DE, ME ME(n) and TDN values were comparable for all plantain forms except RPM, which had significantly lower values in most cases. The fresh green plantains and green plantain meals had slightly higher energy values than the ripe plantains, even though the nutrients in the ripe plantains were better digested than in the green forms. The results are discussed in relation to variations in the relative proportions of the simple and more complex carbohydrates during ripening.

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Apparent Digestibility Coefficients for Common Major Feed Ingredients In Formulated Feed Diets For Tropical Sport Fish, Tor tambroides Fry.

Pakistan Journal of Biological Sciences ◽

10.3923/pjbs.2000.261.264 ◽

2000 ◽

Vol 3 (2) ◽

pp. 261-264 ◽

Cited By ~ 4

Author(s):

Jalal K. C. A . ◽

Ambak M. A . ◽

Saad C. R . ◽

Hasan A. . ◽

Abol-Munafi A. B .

Keyword(s):

Apparent Digestibility ◽

Feed Ingredients ◽

Formulated Feed ◽

Sport Fish

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Evaluation of Raw Yeast Extract (Saccharomyces cerevisiae) as an Ingredient, Additive or Palatability Agent in Wet Diet for Cats

International Journal of Biology ◽

10.5539/ijb.v8n1p1 ◽

2015 ◽

Vol 8 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

Lidia M. Lima ◽

Jose Walter Silva Jr ◽

Rosana C. S. Ogoshi ◽

Jessica S. dos Reis ◽

Janine Franca ◽

...

Keyword(s):

Yeast Extract ◽

Control Diet ◽

Latin Squares ◽

Metabolizable Energy ◽

Energy Utilization ◽

Functional Additive ◽

Apparent Digestibility Coefficient ◽

Significant Difference ◽

Adult Cat ◽

And Control

Three experiments were performed to evaluate the effects of strain-specific yeast extract (SSYE) as an ingredient, functional additive or palatability agent when supplemented in its raw form in wet cat food. SSYE as ingredient – SSYE was chemically characterized and its use evaluated through fourteen cats divided into two treatments: control diet (complete wet adult cat food) and control diet with 30 % replacement by SSYE. The results of apparent digestibility coefficient of SSYE were 71.64 % for dry matter, 72.55 % for organic matter, 50.78 % for ashes, 78.59 % for crude protein, 84.33 % for the energy gross and digestible and metabolizable energy value, respectively, of 4,247 and 4,163 kcal/kg, these results indicated that SSYE is comparable to other protein sources for cat’s food. SSYE as a functional additive - twelve cats were distributed into two 6x6 latin squares (treatments; experimental periods), and the treatments were control diet and replacement levels ranged from 2 % to 10 % SSYE. The following parameters were evaluated: digestibility, energy utilization, nitrogen balance, serum urea and creatinine levels. No differences were found. SSYE as palatability agent – Were used twenty cats by comparing the control diet with 2 % replacement by SSYE. A significant difference (P < 0.01) was observed with a preference for control diet. SSYE is a potential protein source for cats; however, it is not effective as additive and may compromise palatability when supplemented in its raw form in complete wet cat food.

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