scholarly journals Digestibilidad de raciones altas en fibra por el cerdo criollo

2016 ◽  
Vol 1 ◽  
pp. 27
Author(s):  
R. Jarquín ◽  
R. Bressani

A basal mixture containing 35% soybean meal, 64.6% corn and 0.4 % methionine was used to formulate isocaloric and isoproteic diets for initiation, growth and finishing periods of development of native pigs, containing 16, 12 and 10% protein to be fed at8, 16 and 26 weeksof age, respectively. Lathyrus-used as the fiber source- was kept constant in the rations at levels of 16.4 and 32.8% for the three periods studied, reducing the content of the basal mixture in the diets on the basis of the protein contributed by the source of fiber added, and adding starch to maintain protein level constant. Information is presented on the digestibility of the nutrients of the diets for native pigs of 8 weeks of age on diets containing Ipomoea. Digestibility of cellular content decreased with fiber increment, although it improved at 26 weeks of age. Digestibility of acid detergent fiber, lignin and energy improved with age; nevertheless, they decreased between diets. Cellulose digestibility showed statistical differences among diets. Protein digestibility decreased with respect to fiber content, however, no significant differences were detected between age of animals and diets. Digestibility values between Lathyrus show significant differences in acid detergent fiber, lignin and cellulose in favor of Ipomoea.

1990 ◽  
Vol 70 (3) ◽  
pp. 921-926 ◽  
Author(s):  
J. R. SEOANE ◽  
A.-M. CHRISTEN ◽  
S. DION

Twenty crossbred steers (493 ± 6 kg) were used to study the effects of two types of cereal (cracked corn or rolled barley) and two protein supplements (fish meal or soybean meal) on voluntary intake and apparent digestibility of grass hay based diets for beef steers. Diets contained 65% concentrate and 35% roughage as fed. Daily digestible energy intake, expressed as MJ kg−0.75 body weight, was 15% higher in steers fed barley (P < 0.01) and 10% higher when fish meal was fed instead of soybean meal (P < 0.04). Apparent digestion coefficients of DM and acid detergent fiber were similar for the four diets. Apparent protein digestibility was 30.5% higher in steers receiving barley (P < 0.01). Energy digestibility was slightly higher (6.5%, P < 0.14) for animals receiving barley compared with those receiving corn, probably because digestibility of barley starch was 7.3% higher (P < 0.01). Thus, digestible energy values of barley diets were 6.3% higher than those of corn diets. The results suggest that rolled barley was superior to cracked corn and fish meal superior to soybean meal when fed with grass hay to steers. Key words: Cattle, fish meal, soybean meal, corn, barley


2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2589
Author(s):  
Marjorrie Augusto de Souza ◽  
Edenio Detmann ◽  
Gabriel Cipriano Rocha ◽  
Marcia De Oliveira Franco ◽  
Erick Darlisson Batista ◽  
...  

The objective of this collaborative study was to evaluate the indigestible neutral detergent fiber (iNDF) and indigestible acid detergent fiber (iADF) content in feeds in six laboratories from institutions linked to the National Institute of Science and Technology in Animal Science (INCT-CA). Six feeds were evaluated: signal grass hay, sugarcane, corn silage, soybean meal, corn and citrus pulp. Estimated levels of iNDF and iADF proved to be dependent on the laboratory in which the analysis was performed. It was found that differences between laboratories ranged from 2.40 percentage points for soybean meal to 8.05 percentage points for sugarcane for iNDF analysis and from 1.79 percentage points for corn to 10.06 percentage points for hay for iADF analysis. It was observed that the individual evaluation of each material, the total random variation of the results between laboratories ranged from 88.75 to 96.77% and 88.75 to 98.40% for iNDF and iADF analysis, respectively. The iNDF and iADF levels are dependent on the interaction effect between the evaluated material and laboratory and have low reproducibility; this may be a consequence of the differences between the methods practiced by each laboratory, demonstrating lack of standardization of procedures used by the laboratories.


Optik ◽  
2019 ◽  
Vol 180 ◽  
pp. 34-45 ◽  
Author(s):  
Jinlong Li ◽  
Laijun Sun ◽  
Yingsong Li ◽  
Yuncai Lu ◽  
Xuyang Pan ◽  
...  

1995 ◽  
Vol 307 (2) ◽  
pp. 457-463 ◽  
Author(s):  
D A Brooks ◽  
D A Robertson ◽  
C Bindloss ◽  
T Litjens ◽  
D S Anson ◽  
...  

The sulphatase family of enzymes have regions of sequence similarity, but relatively little is known about either the structure-function relationships of sulphatases, or the role of highly conserved amino acids. The sequence of amino acids CTPSR at position 91-95 of 4-sulphatase has been shown to be highly conserved in all of the sequenced sulphatase enzymes. The cysteine at amino acid 91 of 4-sulphatase was selected for mutation analysis due to its potential role in either the active site, substrate-binding site or part of a key structural domain of 4-sulphatase and due to the absence of naturally occurring mutations in this residue in mucopolysaccharidosis type VI (MPS VI) patients. Two mutations, C91S and C91T, altering amino acid 91 of 4-sulphatase were generated and expressed in Chinese hamster ovary cells. Biochemical analysis of protein from a C91S cell line demonstrated no detectable 4-sulphatase enzyme activity but a relatively normal level of 4-sulphatase polypeptide (180% of the wild-type control protein level). Epitope detection, using a panel of ten monoclonal antibodies, demonstrated that the C91S polypeptide had a similar immunoreactivity to wild-type 4-sulphatase, suggesting that the C91S substitution does not induce a major structural change in the protein. Reduced catalytic activity associated with normal levels of 4-sulphatase protein have not been observed in any of the MPS VI patients tested and all show evidence of structural modification of 4-sulphatase protein with the same panel of antibodies [Brooks, McCourt, Gibson, Ashton, Shutter and Hopwood (1991) Am. J. Hum. Genet. 48, 710-719]. The loss of enzyme activity without a detectable protein conformation change suggests that Cys-91 may be a critical residue in the catalytic process. In contrast, analysis of protein from a C91T cell line revealed low levels of catalytically inactive 4-sulphatase polypeptide (0.37% of the wild-type control protein level) which had missing or masked epitopes, suggesting an altered protein structure or conformation. Subcellular fractionation studies of the C91T cell line demonstrated a high proportion of 4-sulphatase polypeptide content in organelles characteristic of microsomes. The aberrant intracellular localization and the reduced cellular content of 4-sulphatase polypeptide was consistent with the observed structural modification leading to retention and degradation of the protein within an early vacuolar compartment.


1982 ◽  
Vol 62 (2) ◽  
pp. 467-471
Author(s):  
R. M. TAIT ◽  
C. GASTON ◽  
J. R. HUNT ◽  
G. M. BARTON

Eight sheep were used in two 4 × 4 latin square digestion trials substituting alfalfa meal with unsteamed or steamed muka (foliage) at levels of 20, 40 or 60%. Including muka at all levels depressed (P < 0.05) the digestibility of dry matter, organic matter, crude protein and acid detergent fiber compared with the control alfalfa meal diet. When calculated by difference, the digestibility of muka dry matter and organic matter was not affected (P < 0.05) by either the level of its inclusion in the diets or by steaming. The mean dry matter and organic matter digestibilities of muka were 29.2 and 30.4%, respectively. The protein content of muka was 5.0% and the estimated protein digestibility at the 60% level of inclusion was only 6.6%. With unsteamed muka, the digestibility of acid detergent fiber calculated by difference averaged −11.9%, suggesting the presence of factors which depressed the digestibility of fiber in the basal diet. Steaming appeared to reduce this depression. A growth trial was conducted with lambs where alfalfa meal, as the sole roughage source, was compared to the same diet with 20% of the alfalfa replaced by steamed muka. Growth rates were not different (P > 0.05) being 142 and 138 g/day, respectively. A taste panel evaluation of the carcasses found no adverse effects on flavor due to the inclusion of steamed muka in the diet. Key words: Lodgepole pine muka, nutritive value, sheep


1968 ◽  
Vol 48 (1) ◽  
pp. 35-39 ◽  
Author(s):  
E. M. Olsen ◽  
S. J. Slinger

The effect if steam pelleting and regrinding on digestibility of protein in corn, wheat, barley, oats, soybean meal and wheat bran was tested with rats. Percentage amino acid absorption and net protein utilization (NPU) were determined for the wheat bran. Pelleting and regrinding improved the digestibility of protein in bran but had no effect on the digestibility of protein in the other ingredients tested. Increased absorption of amino acids caused by the increased digestibility of protein in bran varied considerably for individual amino acids, being greatest for isoleucine, lysine, methionine and threonine of the essential amino acids. The improvement in protein digestibility and amino acid availability was reflected in a higher NPU.


2020 ◽  
Vol 6 (2) ◽  
pp. 97
Author(s):  
Achmad Jaelani ◽  
Muhammad Irwan Zakir

Swamps forage generally have crude fiber content and tannin content which is quite high. Unlike the case with legumes which are high in protein content but crude fiber content, and tannins that are not too high compared to swamp forages. The presence of tannin in swamp forage, has an impact on palatability, digestibility and biological value of feed. In such a situation, modification of swamp forages with tree legumes is a promising alternative source of feed for goats.         Protein in small ruminant animals is generally degraded in the rumen before reaching the abomasum, where absorption of nutrients occurs. As a result, protein digestibility will be reduced because it is damaged during the journey to the abomasum, so there needs to be modification so that protein damage to the rumen can be reduced. One way is to create a protein protector that is able to protect protein by using tannin which is quite abundant in swamp forages. In addition to functioning as a protein protector, tannin is also useful as an anthelmintic agent (anti-parasite) in goats, so that it will reduce the occurrence of worm disease in goats so that it will reduce the use of worm parasitic drugs which will have an impact on goat performance.           The specific objectives of this study were to analyze the ability of a combination of swamp forage with modified legume as a complete feed granule with different tannin content on the quality of local carcass and goat meat          Trial feeding was carried out on 12 male local goats aged 1.5-2 years, body weight 33-35 kg. At this stage a modified swamp and legume forage in the form of granules was modified as a complete feed on the performance of local meat-producing goats. Parameters measured included: Carcass quality, physical and organoleptic quality of meat.          The results showed that the application of swamp forage and indigofera legume on male goats affected the cut weight and carcass percentage. Giving a combination of swamp forage with indigofera legume with different tannin content affects the physical properties of goat meat which includes cooking losses, water holding capacity, but does not affect the tenderness of meat, and pH. 


2005 ◽  
pp. 3-10 ◽  
Author(s):  
Jovanka Levic ◽  
Slavica Sredanovic ◽  
Olivera Djuragic

The paper provides an overview of the nutritional aspects associated with the utilization of sunflower meal in broiler diets. To gain the maximum benefit from this feed ingredient, some of the characteristics of sunflower meal must be considered. In broiler diets, it is recommended that only high-quality decellulosed sunflower meal be used. Our own results and a broad variety of published reports have thus been consulted. Experiments with high protein sunflower meal in broiler diets have shown that sunflower meal can successfully replace soybean meal, provided that diets are supplemented with adequate amounts of lysine and energy. Consequently, the inclusion of sunflower meal in broiler diets may vary depending on the fiber content of the meal, the lysine and/or energy supplementation of the diet.


2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Natalia Usman ◽  
Ellen Salah

The research was aimed at investingating acid detergent  fibre   neutral detergent Fiber content in corn straw fermented using Trichoderma Viride in different Incubation Time. It applied compeletey Randomizend Design consisting Of  4 treatments  and  4 repetitions,  hence, it resulted in 16 units  of  an experiment. The Treatments consisted of corn straw  withhout inoculation (control), 7%  corn straw  Fermented  with Trichoderma  viride in  1 week incubation time, 7%  corn  straw  Fermented  with Trichoderma Viride in  2 weeks incubation time, and 7% corn  straw fermented with Trichoderma Viride in 3 weeks incubation time.Analysis of variance result shows that corn straw fermented using Trichoderma  Viride in different Incubation Time gave significant inflluance toward ADF content (p0,05).  Besides ,  corn straw fermentd using Trichoderma Viride in different incubation Time gave significant influence toward NDF content(p0,05).


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