scholarly journals Method of using increasing levels of substitution of the basal diet by test feedstuffs in pig digestibility trials

2012 ◽  
Vol 64 (5) ◽  
pp. 1265-1274
Author(s):  
L.M. Piano ◽  
I. Moreira ◽  
C. Scapinello ◽  
P.L.O. Carvalho ◽  
J.B. Toledo ◽  
...  

Two experiments were carried out to study the methodology of using increasing levels of substitution of the basal diet with fibrous test feedstuffs (sticky coffee hull - SCH) in digestibility trials with pigs. In Experiment 1, a digestibility trial was conducted using 30 crossbred barrows, allotted in a randomized block design. In Experiment 2, 42 growing and 42 finishing pigs were used, allotted in a completely randomized design, with six diets and seven replicates, with one animal per experimental unit. The six diets consisted of: a control diet, four diets using SCH ME values as obtained in Experiment 1 plus a diet using SCH ME value estimated by linear regression equation for 15% substitution. The digestibility study indicated that the use of increasing levels of substitution (7, 14, 21 and 28%) reduced SCH digestibility. ME values, as-fed basis, were 2,456, 2,377, 2,247 and 1,945kcal/kg. The overall results indicate that higher levels of substitution overestimate the energy value and that the method of increasing levels of substitution of the basal diet with feedstuffs test can be used to more accurately estimate the energy values of fibrous feedstuffs for pigs. For growing and finishing pigs respectively, up to 28% and 15% of sticky coffee hull can be used without impairing pig performance and economic feasibility.

2014 ◽  
Vol 15 (1) ◽  
pp. 221-236 ◽  
Author(s):  
Liliane Maria Piano Gonçalves ◽  
Ivan Moreira ◽  
Paulo Cesar Pozza ◽  
Paulo Levi de Oliveira Carvalho ◽  
Juliana Beatriz Toledo ◽  
...  

Two experiments were carried out to determine the nutritional value and to evaluate the performance and carcass traits in the growing-finishing pigs fed on two types of semipurified glycerin, which were made from vegetable oil (SPGV) and mixed of animal + vegetable oil (SPGM). In the digestibility trial (experiment I) 32 crossbreed barrows were used with initial body weight of 45.08 ± 4.11kg. It were used three levels of inclusion (6, 12 e 18%) of semipurified glycerin (SPGV and SPGM) in the basal diet. The metabolizable energy (ME) value of glycerin were estimated by regression of ME (kcal/kg) intake associated with glycerin vs. glycerin intake (kg). The values of ME (kcal/kg) obtained were: 2,731 for SPGV and 2,210 for SPGM. In experiment II, 72 pigs (30.08 ± 1.65 to 60.58 ± 3.57) in growing and (60.83 ± 2.63 to 93.79 ± 5.72) in finishing phase, were allotted in a completely randomized design in a 2 x 4 + 1 factorial scheme, with two types of semipurified glycerin (SPGV and SPGA), four inclusion levels (4; 8; 12 and 16%), eight experimental unit and a control diet containing no glycerin (0%). All pigs were slaughtered to evaluate the carcass traits. The performance results suggest that it is feasible to use up to 16% of both semipurified glycerins on growing and finishing pigs feeding, without impairing performance and carcass traits.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 289-289
Author(s):  
Briana V Tangredi ◽  
Meghan P Thorndyke ◽  
Octavio Guimaraes ◽  
Rebecca K Barrington ◽  
Shaniece M Borgerding ◽  
...  

Abstract Eighty-nine American Wagyu steers were used to evaluate the effects of dietary barley supplementation on feedlot performance. We hypothesized that barley supplementation would increase ADG compared to non-supplemented control animals. The experimental design was a randomized complete block design. Steers were blocked by initial body weight (BW) and randomly assigned within block to one of two treatments. Treatments consisted of 1) Control (no supplemental barley) and 2) Control diet + 0.9 kg∙animal-1∙d-1 of supplemental barley. Steers were housed in feedlot pens (all pens contained n = 4 steers/pen with the exception of one Control pen that contained n=5 steers; 11 replicates/treatment; experimental unit = pen) and fed a traditional American Wagyu finishing diet (DM basis: 68.42% DM, 14.33% CP; TDN: 74.76%, NEg: 1.16 Mcal/kg, 5.25% EE) for 270d. The basal diet consisted of grass hay, corn silage, cracked corn grain, soybean meal, corn distillers grain, white salt, ground limestone, and olive byproduct. Diets were fed once daily in the morning and barely was top dressed to the appropriate pens, immediately after the basal diet was delivered. Steers were individually weighed on d -1 and 0, and approximately every 28 days throughout the 270d experiment. Data were analyzed using a mixed effects model (PROC MIXED, SAS) for a completely randomized block design. Initial pen BW was used as a covariate in the statistical analysis of all performance data and significance was determined at P ≤ 0.05. Initial and final BW, ADG, DMI, and feed:gain were similar across treatments. Therefore, under the conditions of this experiment, these data suggest that barley supplementation for 270d to American Wagyu cattle did not impact overall animal performance.


2013 ◽  
Vol 14 (2) ◽  
pp. 308-321
Author(s):  
Lina Maria Peñuela Sierra ◽  
Ivan Moreira ◽  
Antonio Claudio Furlan ◽  
Paulo Levi de Oliveira Carvalho ◽  
Ângela Rocio Poveda Parra ◽  
...  

Two experiments were carried out to determine the bioavailability of phosphorus in two spray-dried yeasts - sugarcane yeast (SCY), and sugarcane yeast + brewer's yeast (SCBY) - in starting pigs, by comparing different methods (Apparent Digestibility Coefficient of Phosphorus - ADCP; True Digestibility Coefficient of Phosphorus - TDCP; slope ratio; and standard curve). In experiment I, a digestibility assay were carried out using 30 cross breed pig with initial weigh of 22.69 ± 4.24kg, allotted in a completely randomized design. The mean ADCP and TDCP values were 62.68 and 64.15% for SCY and 77.01 and 79.33% for SCBY. ADCP and TDCP for SCBY were higher (P<0.05) than the values for SCY. In Experiment II, a growth test was conducted, 56 crossbred piglets, were utilized, with initial live weight of 15.11 ± 3.43kg, allotted in a completely randomized design, with seven treatments, four replications, and two pigs per experimental unit. The treatments consisted of a basal diet without supplementation with P and the same diet including supplementation with two levels of P (0.053% and 0.105%) from dicalcium phosphate, SCY and SCBY. The relative bioavailability mean value of 57.23% for SCY and 91.96% for SCBY, corresponding to 0.30% and 0.40% of available phosphorus, respectively.


2013 ◽  
Vol 31 (1) ◽  
pp. 08-14 ◽  
Author(s):  
Edilson Costa ◽  
Taynara G de Souza ◽  
Gleciane de L Benteo ◽  
Katiane SS Benett ◽  
Cleiton GS Benett

The okra grows well in hot weather, finding favorable conditions for development in Brazil. We evaluated the production of okra seedlings and productivity. The experiment was conducted in the experimental area of the State University of Mato Grosso do Sul, in Aquidauana. In the seedling phase we tested substrates (100% triturated cassava stems, 75% triturated cassava stems and 25% vermiculite, 50% triturated cassava stems and 50% vermiculite, 25% triturated cassava stems and 75% vermiculite and 100% vermiculite). These substrates were placed in two protected environments (nursery with black screen, 50% of shading, and aluminized screen, 50% of shading). Each environment was considered an experiment conducted in completely randomized design with eight replications. After that we realized joint analysis. In the field, a total of 10 treatments generated from combinations of environments and substrates (2 environments x 5 substrates) were distributed in a randomized block design with four replications. The average proportions of cassava stems and vermiculite may be suitable for okra seedlings. The results of shoot and total dry phytomass indicate that the aluminized screen can be recommended for okra seedlings production when the substrate with a 1:1 ratio is used. Seedlings grown on higher percentages of vermiculite anticipate production, while seedlings produced only in cassava stems tend to slow it down. The aluminized screen tends to increase the yield of okra seedlings. Average proportions of vermiculite and cassava stems for seedling production under aluminized screen, provide more fruits and yield of okra in Aquidauana.


2017 ◽  
Vol 38 (5) ◽  
pp. 3283
Author(s):  
Doglas Batista Lazzeri ◽  
Leandro Dalcin Castilha ◽  
Patrícia Barcellos Costa ◽  
Ricardo Vianna Nunes ◽  
Magali Soares dos Santos Pozza ◽  
...  

This study aimed to determine the SID isoleucine (Ile) requirement of starting barrows fed low crude protein. Two experiments were carried out. Experiment 1: Ten crossbred barrows were used in order to determine the SID AA of the basal diet (treatment with the lowest SID Ile level used in the growth performance experiment), averaging 15.00 ± 0.27 kg of initial weight, individually housed in metabolic cages and allotted in a complete randomized design, with two treatments, five replicates and one animal per experimental unit. Treatments consisted of a basal (14.13% CP and 0.450% of SID Ile) and a free protein diet. Experiment 2: A performance experiment was carried out to determine the SID Ile requirement when using low crude protein diets. Forty crossbred barrows were used, averaging 15.00 ± 0.87 kg of initial weight and distributed in a randomized block design with five treatments (0.450, 0.520, 0.590, 0.660 and 0.730% of SID Ile) and two animals per experimental unit. The average daily gain (ADG) (P=0.049) and protein deposition (P=0.01) were affected by the studied SID Ile levels. The daily need of SID Ile was estimated at 5.9 g when considering 0.61% as the optimum level of SID Ile in the diet for an improved ADG and protein deposition.


2019 ◽  
Vol 49 (2) ◽  
Author(s):  
Lucas Matias Gomes ◽  
Cláudia Silva da Costa Ribeiro ◽  
Carlos Francisco Ragassi ◽  
Lorena Sousa Silva ◽  
Francisco José Becker Reifschneider

ABSTRACT: The objective of this study was to evaluate the plant and fruit characteristics in advanced lines of Jalapeño pepper for mechanical harvesting. Thus, two experiments were carried out in the field. Experiment I (2015) was conducted as a randomized block design (three replications and eight plants per plot) and Experiment II (2016) in a completely randomized design (five replications and ten plants per plot). In 2015, lines CNPH 30,112, CNPH 30,118, CNPH 30,147, CNPH 30,159, CNPH 30,183, and CNPH 30,245 were evaluated, together with the control ‘BRS Sarakura’. Significant differences were detected for fruit and plant characteristics (P<0.05). Lines CNPH 30,118, CNPH 30,147, CNPH 30,159, and CNPH 30,245 were selected based on plant height and height of the first bifurcation, earliness, and yield. They were evaluated again in 2016, together with ‘BRS Sarakura’ and ‘Jalapeño Plus F1’ as controls. In 2016, CNPH 30,159 and CNPH 30,118 were selected due to their potential for mechanical harvesting. They were evaluated for height of the first bifurcation (>10cm), large fruits (11 cm x 4 cm), high pulp firmness (11 N), wall thickness (about 5mm), and content of capsaicinoid substances (>50,000 SHU). Selected lines are undergoing additional field evaluation for mechanical harvesting with the Etgar Moses 1010 pepper harvester.


2005 ◽  
Vol 29 (1) ◽  
pp. 208-215 ◽  
Author(s):  
Douglas de Carvalho Carellos ◽  
José Augusto de Freitas Lima ◽  
Elias Tadeu Fialho ◽  
Rilke Tadeu Fonseca de Freitas ◽  
Hunaldo Oliveira Silva ◽  
...  

With the objective to evaluate the influence of increasing levels of inclusion of sunflower meal (SFM) solvent extraction (DM: 92.71%, CP: 27.50%, NDF: 43.57%, ADF: 32.96%, CF: 25.91%, EE: 3,08% and GE: 4390 kcal) on the performance and carcass characteristics of finishing swine, a performance trial was conducted in the Department of Animal Science of the Federal University of Lavras - MG. A total of 80 crossbred pigs (LD x LW) with initial weight of 62.20 ± 4.21 kg were utilized, one barrow and one gilt per experimental unit, allocated in a randomized block design. The treatments were represented by five diets with increasing levels of inclusion (0, 4, 8, 12 and 16%) of SFM. At the end of the experimental period, all pigs were slaughtered (99.80 ± 6.91kg) and submitted to the carcass evaluation by the Brazilian Method of Carcass Evaluation (ABCS, 1973). The increasing levels of SFM shown a linear reduction (P<0.05) in the feed intake, therefore all other variables, shown any significant effect. The carcass data evaluation also shown any significant effect (P>0.05) for any increasing levels of SFM in the diets, however, sex effect was found, in the barrows, which shown higher ETM, P2, AG and RCG and lower AOL in relation to the females In conclusion Sunflower meal should be included up to 16% in pig diet (isocaloric and isolysinic, basis ) with no major effects on growth performance or carcass traits of finishing pigs.


2016 ◽  
Vol 42 (4) ◽  
pp. 303-307
Author(s):  
Vander Rocha Lacerda ◽  
◽  
Diemesson San Tiago Mendes ◽  
Fernando da Silva Rocha ◽  
Maria de Fátima Gonçalves Fernandes ◽  
...  

ABSTRACT Propagation of “coquinho-azedo” (Butia capitata) is limited due to dormancy and high incidence of fungi in its seeds. The aim of this study was to evaluate the effect of treating “coquinho-azedo” seeds with different concentrations of bactericide and/or fungicide on the incidence of fungi and on the germination of seeds. Thus, B. capitata seeds were immersed in four doses of the bactericide kasugamycin (0, 1.5, 3.0 and 4.5 mL/L) and/or in four concentrations of the fungicide carbendazim+ thiram (0, 2.92, 5.84 e 8.75 mL/Kg), totaling 16 treatments. After the treatments, the operculum was removed from the seeds, which were placed on trays containing autoclaved sand, covered with transparent plastic film and kept in the nursery. In the germination test, treatments were distributed in randomized block design, factorial arrangement of 4x4 (bactericidal doses x fungicide doses), with four replicates of 50 seeds per plot. For the test of seed health quality, the Blotter test was employed in completely randomized design, using 20 replicates and 10 seeds. Health quality and germination were evaluated at 15 and 40 days after the treatment of seeds, respectively. There was no interaction between the bactericide and the fungicide on germination and control of fungi associated with seeds. However, there was an effect of fungicide concentrations on the evaluated parameters. We observed a negative correlation between the concentrations of the fungicide carbendazim + thiram and fungal incidence, and a positive correlation between the fungicide concentrations and seed germination. Therefore, fungicide treatment reduces the fungal incidence and provides better germination of B. capitata seeds.


1970 ◽  
Vol 37 (2) ◽  
pp. 58-65
Author(s):  
MM Rahman ◽  
ZH Khandaker ◽  
ABM Khaleduzzaman

The bioavailability of phosphorous, and blood serum and rumen liquor P level was studied in indigenous growing cattle by feeding bone meal and Triple Super Phosphate (TSP) with control diet. Nine indigenous growing cattle (live weight of 164 ± 21 kg) were randomly assigned in a Completely Randomized Design (CRD) to three dietary treatments, consisted of a basal diet (T0) of 0.16% P and experimental diets supplemented with bone meal (T1) and triple super phosphate (T2) to provide P level of 0.44%. All diets were formulated to be iso-nitrogenous and iso-caloric. Three cannulated animals were used for rumen liquor P level study by feeding three diets. Apparent absorption and balance of P were significantly (P<0.01) higher in T1 and T2 diets than that of diet T0, but true absorption did not differ significantly (P>0.05). Bioavailability of P of control diet (37.41%), bone meal (81.45%) and triple super phosphate (80.49%) were significantly differed (P<0.01). Rumen liquor and blood serum P level differed significantly (P<0.01). Supplementation of bone meal and triple super phosphate results in high blood serum P (P>0.05) with no difference between bone meal and triple super phosphate. The results suggested that the bioavailability of P from bone meal and TSP was high and dietary supplementation of P with bone meal and TSP improved P retention and blood serum P level. DOI: http://dx.doi.org/10.3329/bjas.v37i2.9882 BJAS 2008; 37(2): 58-65


2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 200-200
Author(s):  
Vinicius R C Paula ◽  
Natália C Milani ◽  
Cândida P F Azevedo ◽  
Gabriel A G Casarotti ◽  
Leonardo A Granja ◽  
...  

Abstract The objective of this study was to determine the apparent total tract digestibility (ATTD) and the standardized total tract digestibility (STTD) of P, and their respective digestible values, of two high protein (HP) corn dried distillers’ grains (DDG) and of two corn DDG with solubles (DDGS), from Brazil and USA, in pigs. Fifty crossbred barrows (38.3±5.2kg BW) were fed a semi-purified P-free basal diet (BD), used to determine endogenous P losses, or four diets composed of 40% of each ingredient, as the only source of P, substituting for starch in BD: Brazilian HP DDG (BHP); USA HP DDG (UHP); Brazilian DDGS (BDG) and USA DDGS (UDG). Animals were fed at 2.8 x maintenance (110 kcal of DE per kg of BW0.75) for 9 d (7 d adaptation and 2 d of partial feces collection). Titanium dioxide was used as an indigestible marker (0.3%) for digestibility calculations. A randomized block design was used, with 10 replicates, using the pig as the experimental unit. Results were submitted to ANOVA and Tukey’s test (P&lt; 0.05). The ATTD of P of UHP and UDG were 47% greater (P&lt; 0.05) than those verified in BHP and BDG. The STTD of P of UHP and UDG were 45% higher (P &lt; 0.05) than that of BDG. The STTD of BHP was similar (P &gt;0.05) to the values of BDG and UDG. The total and standardized digestible P of UDG (0.40-0.44%, respectively) were greater (P&lt; 0.05) than those of BDG (0.33-0.38 %, respectively) and of UHP (0.28-0.32%, respectively), which were similar (P &gt; 0.05), and higher than that of BHP (0.22-0.27%, respectively). In conclusion, corn distiller’s co-products from Brazil and USA presented different ATTD and STTD P values, and USA DDGS (UDG) showed the highest apparent total tract and standardized digestible P among all corn coproducts evaluated.


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