cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7510574
title: Alternative protein sources in nutrition and metabolism of jundiá:in nature and demucilaged linseed meal

description: This study evaluated the growth response and metabolic effects of partial replacement of animal protein source with in natura (LM) or demucilaged (DLM) linseed meal in the diet of jundiá (Rhamdia quelen) juveniles. After demucilagen increased crude protein content and reduced soluble fiber of linseed meal. During seven weeks, 240 jundiá juveniles were reared in water recirculation system and fed to apparent satiation with the following diets: control diet (meat and bones meal and soybean protein concentrate as the main protein sources); 17% LM (17% crude protein of linseed meal replacing meat and bones meal); 17% DLM (17% crude protein of demucilaged linseed meal replacing meat and bones meal) or 35% DLM (35% crude protein of demucilaged linseed meal replacing meat and bones meal). At the end of the experiment, weight, total and standard length of the animals did not differ between treatments, but lower values of feed conversion were found in the control group. As for metabolic response, animals fed with 35% DLM diet showed higher level of glucose and cholesterol in plasma, but triglycerides, albumin, total protein and liver biochemistry (glycogen, glucose, lactate, protein, amino acids, ammonia) were not changed between treatments. The results demonstrated that in natura and demucilaged linseed meal can be used in the diet of jundiá without compromising metabolic parameters and final weight.
DOI: 10.6084/m9.figshare.7509293
title: Influence of environmental factors on pre-weaning weights of crossed cattle Aberdeen Angus x Nelore

description: The aim of this study was to estimate the environmental effects (calving age, julian date of birth and weaning age) on the adjusted weights to 120 (P120) and 205 (P205) days of crossbred cattle Angus x Nelore. The database was formed with information from 11,271 animals, borned from 1987 to 2004. Maternal heterozygosity proportions were equal to 0.0, 0.375, 0.4688, 0.5, 0.75 and 1.0. The weights, P120 and P210, were standardized based on the weight daily gain by interpolation of the weighing close to the standardized age and weight measured previously. The (co) variance components and genetic parameters were obtained by Bayesian inference analyzes performed with three statistical models, differing as to the environmental effects. Breeding values were obtained for three models and were compared by Spearman correlations and by percentage of selected bulls in common. Heritability estimates values obtained in the best model was 0.20 for both traits (P120 and P205). Study of genetic values showed changes in the classification of animals according to models. Inclusion of julian date class of birth, age class of the animal in the measurement and interaction of calving age class and maternal heterozygosity in the selection of parents was important to allow greater precision in genetic evaluation of herd.
DOI: 10.6084/m9.figshare.7509293.v1
title: Influence of environmental factors on pre-weaning weights of crossed cattle Aberdeen Angus x Nelore

description: The aim of this study was to estimate the environmental effects (calving age, julian date of birth and weaning age) on the adjusted weights to 120 (P120) and 205 (P205) days of crossbred cattle Angus x Nelore. The database was formed with information from 11,271 animals, borned from 1987 to 2004. Maternal heterozygosity proportions were equal to 0.0, 0.375, 0.4688, 0.5, 0.75 and 1.0. The weights, P120 and P210, were standardized based on the weight daily gain by interpolation of the weighing close to the standardized age and weight measured previously. The (co) variance components and genetic parameters were obtained by Bayesian inference analyzes performed with three statistical models, differing as to the environmental effects. Breeding values were obtained for three models and were compared by Spearman correlations and by percentage of selected bulls in common. Heritability estimates values obtained in the best model was 0.20 for both traits (P120 and P205). Study of genetic values showed changes in the classification of animals according to models. Inclusion of julian date class of birth, age class of the animal in the measurement and interaction of calving age class and maternal heterozygosity in the selection of parents was important to allow greater precision in genetic evaluation of herd.
DOI: 10.6084/m9.figshare.7509296
title: Environmental factors and genetic parameters for reproductive characteristics of Nelore in the through northern region from Brazil

description: The study was carried out to evaluate the age-at-first-calving and calving interval (IPP and IDP) in Nelore cows, using IPP and IDP data from 23,066 females reared in a grazing regime in the States of Maranhão and Piauí from 1976 to 2012. Data were analyzed statistically using the SAS (Statistical Analysis System) program. The mean and coefficient of variation for the age-at-first-calving was 1252.77 ± 125 days (10.41 months; 10.56%) and, for the calving interval, values were 591.73 ± 149.91 days (12.49 months; 38.74%). Uncharacteristic analyses were used to estimate genetic parameters for heritability values, obtaining values of approximately 0.026 and 0.006 for IPP and IDP, respectively. The repeatability estimate for the IDP characteristic, as calculated by uncharacteristic analysis, had a generally low value of 0.025. Similarly, for trait analysis, heritability values were 0.03 and 0.06 for IPP and IDP, respectively, and the estimated repeatability coefficient was 0.14. The genetic correlations between the reproductive characteristics (IPP and IDP) observed in this study were equal to 0.06. The reproductive performance of the herd studied, in tropical climate conditions, can be considered to be satisfactory, in accordance with the parameters obtained by other authors in different regions.
DOI: 10.6084/m9.figshare.7509296.v1
title: Environmental factors and genetic parameters for reproductive characteristics of Nelore in the through northern region from Brazil

description: The study was carried out to evaluate the age-at-first-calving and calving interval (IPP and IDP) in Nelore cows, using IPP and IDP data from 23,066 females reared in a grazing regime in the States of Maranhão and Piauí from 1976 to 2012. Data were analyzed statistically using the SAS (Statistical Analysis System) program. The mean and coefficient of variation for the age-at-first-calving was 1252.77 ± 125 days (10.41 months; 10.56%) and, for the calving interval, values were 591.73 ± 149.91 days (12.49 months; 38.74%). Uncharacteristic analyses were used to estimate genetic parameters for heritability values, obtaining values of approximately 0.026 and 0.006 for IPP and IDP, respectively. The repeatability estimate for the IDP characteristic, as calculated by uncharacteristic analysis, had a generally low value of 0.025. Similarly, for trait analysis, heritability values were 0.03 and 0.06 for IPP and IDP, respectively, and the estimated repeatability coefficient was 0.14. The genetic correlations between the reproductive characteristics (IPP and IDP) observed in this study were equal to 0.06. The reproductive performance of the herd studied, in tropical climate conditions, can be considered to be satisfactory, in accordance with the parameters obtained by other authors in different regions.
DOI: 10.6084/m9.figshare.7506521.v1
title: Tissue and centesimal composition of the 12th rib of lambs from genetic groups different

description: This experiment evaluated the effect of genetic group and slaughter weight on rib eye area, tissue and centesimal composition of the 12th rib. Were used lambs Santa Ines, ½ Ile de France x ½ Santa Ines and ½ Texel x ½ Santa Ines lambs, slaughtered at different weights (35 and 45kg). After cooling at 4°C for 24 h, the 12th rib was removed for tissue and centesimal. The experiment was in a 3 (genetic group) x 2 (sex) x 2 (slaughter weight) factorial design and analyzed using Correlation and Duncan 0.05 means test in SAS®. Texel x Santa Ines animals had the best potential for quality traits of the 12th rib, with earlier finishing for slaughter. The lambs slaughtered at 35kg had lowest fat and highest edible proportion, this being the recommended slaughter weight.
DOI: 10.6084/m9.figshare.7506521
title: Tissue and centesimal composition of the 12th rib of lambs from genetic groups different

description: This experiment evaluated the effect of genetic group and slaughter weight on rib eye area, tissue and centesimal composition of the 12th rib. Were used lambs Santa Ines, ½ Ile de France x ½ Santa Ines and ½ Texel x ½ Santa Ines lambs, slaughtered at different weights (35 and 45kg). After cooling at 4°C for 24 h, the 12th rib was removed for tissue and centesimal. The experiment was in a 3 (genetic group) x 2 (sex) x 2 (slaughter weight) factorial design and analyzed using Correlation and Duncan 0.05 means test in SAS®. Texel x Santa Ines animals had the best potential for quality traits of the 12th rib, with earlier finishing for slaughter. The lambs slaughtered at 35kg had lowest fat and highest edible proportion, this being the recommended slaughter weight.
DOI: 10.6084/m9.figshare.7509287
title: Two sources of protein in the diet of feedlot lambs

description: The objective was to compare diets for feedlot lambs with two protein levels and two protein sources. 30 were confined lambs, Dorper with St. Inês aged approximately 2.5 months and initial weight of 23kg, were randomly divided into three groups: control diet (15% CP) diet high concentration of true protein (soybean meal, with 19% CP) and diet with a high concentration of non-protein nitrogen (urea, 19% CP). The design was completely randomized and the analysis of data taken by SISVAR using the Tukey test at 5% probability. No statistical differences were observed in the characteristics evaluated for performance and carcass. The diet combined with the lambs of the earning potential can explain the gain in average daily weight of 0.288kg. The body condition (1-5) average initial was 2 (thin) and the end of the experimental period being 3.3 (normal). The carcass conformation, averaging 3.68 points and the conformation of fat cover, with an average of 3.41 points can be classified as medians. The subcutaneous fat thickness, averaging 2.75mm is satisfactory to protect the carcass during cooling. It is concluded that the increase in the protein content in the diet did not improve the characteristics evaluated; and the high-protein diets no difference between the true protein use or non-protein nitrogen, using 2% urea on dry matter.
DOI: 10.6084/m9.figshare.7509287.v1
title: Two sources of protein in the diet of feedlot lambs

description: The objective was to compare diets for feedlot lambs with two protein levels and two protein sources. 30 were confined lambs, Dorper with St. Inês aged approximately 2.5 months and initial weight of 23kg, were randomly divided into three groups: control diet (15% CP) diet high concentration of true protein (soybean meal, with 19% CP) and diet with a high concentration of non-protein nitrogen (urea, 19% CP). The design was completely randomized and the analysis of data taken by SISVAR using the Tukey test at 5% probability. No statistical differences were observed in the characteristics evaluated for performance and carcass. The diet combined with the lambs of the earning potential can explain the gain in average daily weight of 0.288kg. The body condition (1-5) average initial was 2 (thin) and the end of the experimental period being 3.3 (normal). The carcass conformation, averaging 3.68 points and the conformation of fat cover, with an average of 3.41 points can be classified as medians. The subcutaneous fat thickness, averaging 2.75mm is satisfactory to protect the carcass during cooling. It is concluded that the increase in the protein content in the diet did not improve the characteristics evaluated; and the high-protein diets no difference between the true protein use or non-protein nitrogen, using 2% urea on dry matter.
DOI: 10.6084/m9.figshare.7509317
title: Carcass characteristics of lambs fed diets with inclusion of sugar cane dry yeast

description: The objective was estimate the effects of replacing soybean meal by dry yeast sugarcane on carcass characteristics and non-carcass of lambs finished in feedlot. We evaluated four treatments (0.0, 33.0, 66.0 and 100.0%) consisting of sugar cane dry yeast inclusion levels to replace soybean meal in an experimental randomized complete block design with nine repetitions. The replacement of soybean meal by sugar cane dry yeast decreased linearly constituents non-carcass, dry matter intake, daily weight gain, body weight at slaughter, conformation, degree of completion of the carcasses, carcass yield and meat cuts. The inclusion of sugar cane dry yeast did not affect the color of thelongissimus dorsi and kidney fat, while for rib eye area, renal pelvic fat and body condition, whereas if included sugar cane dry yeast there was a decrease of these variables. Gross margin decreased by lamb as it included the sugar cane dry yeast in the diet. The replacement of soybean meal by sugar cane dry yeast sugarcane negatively affects carcass and non-carcasscharacteristics of lambs.
DOI: 10.6084/m9.figshare.7509317.v1
title: Carcass characteristics of lambs fed diets with inclusion of sugar cane dry yeast

description: The objective was estimate the effects of replacing soybean meal by dry yeast sugarcane on carcass characteristics and non-carcass of lambs finished in feedlot. We evaluated four treatments (0.0, 33.0, 66.0 and 100.0%) consisting of sugar cane dry yeast inclusion levels to replace soybean meal in an experimental randomized complete block design with nine repetitions. The replacement of soybean meal by sugar cane dry yeast decreased linearly constituents non-carcass, dry matter intake, daily weight gain, body weight at slaughter, conformation, degree of completion of the carcasses, carcass yield and meat cuts. The inclusion of sugar cane dry yeast did not affect the color of thelongissimus dorsi and kidney fat, while for rib eye area, renal pelvic fat and body condition, whereas if included sugar cane dry yeast there was a decrease of these variables. Gross margin decreased by lamb as it included the sugar cane dry yeast in the diet. The replacement of soybean meal by sugar cane dry yeast sugarcane negatively affects carcass and non-carcasscharacteristics of lambs.
DOI: 10.6084/m9.figshare.7513703
title: Black oat silage quality under ensiling phenological stages, particle size and pre-wilting

description: AbstractThe objective was evaluate the effect of growth stage, particle size and pre-wilting on fermentation characteristics and nutritional value of the black oat silage (Avena strigosa S.). The experiment was conducted during the winter of 2011, in the city of Renascença, Southwest region of Paraná State, Brazil. The experimental design was completely randomized distributed in a factorial (3x2x2) with four replications. The factors evaluated were particle sizes: 5, 13 and 22mm; ensilage stages: early flowering and full flowering; and management: with and without pre-wilting. The particle size changes only the silage pH, with better results under 22mm, without any effects on the chemical composition of the silage produced. The management of pre-wilting is efficient to restrict effluents emission at early flowering, also gives better silage fermentationconditions, with reduced buffering capacity of 87.68 to 53.20meq 100g NaOH DM-1 and of pH from 3.64 to 3.15, which ensure a better preservation of the forage nutritional value, having lower levels of neutral detergent fiber (NDF) and acid detergent fiber (ADF) with greater crude protein (CP), in vitro dry matter digestibility (IVDMD) and total digestible nutrients (TDN). With the advancement of maturity it is observed increases in NDF and ADF and decreases in the values of CP, IVDMD and TDN. The ensilage in the early flowering stage followed by pre-wilting has suitable conditions for fermentation and has better nutritional value.
DOI: 10.6084/m9.figshare.7513703.v1
title: Black oat silage quality under ensiling phenological stages, particle size and pre-wilting

description: AbstractThe objective was evaluate the effect of growth stage, particle size and pre-wilting on fermentation characteristics and nutritional value of the black oat silage (Avena strigosa S.). The experiment was conducted during the winter of 2011, in the city of Renascença, Southwest region of Paraná State, Brazil. The experimental design was completely randomized distributed in a factorial (3x2x2) with four replications. The factors evaluated were particle sizes: 5, 13 and 22mm; ensilage stages: early flowering and full flowering; and management: with and without pre-wilting. The particle size changes only the silage pH, with better results under 22mm, without any effects on the chemical composition of the silage produced. The management of pre-wilting is efficient to restrict effluents emission at early flowering, also gives better silage fermentationconditions, with reduced buffering capacity of 87.68 to 53.20meq 100g NaOH DM-1 and of pH from 3.64 to 3.15, which ensure a better preservation of the forage nutritional value, having lower levels of neutral detergent fiber (NDF) and acid detergent fiber (ADF) with greater crude protein (CP), in vitro dry matter digestibility (IVDMD) and total digestible nutrients (TDN). With the advancement of maturity it is observed increases in NDF and ADF and decreases in the values of CP, IVDMD and TDN. The ensilage in the early flowering stage followed by pre-wilting has suitable conditions for fermentation and has better nutritional value.
DOI: 10.6084/m9.figshare.7513910
title: Minerals balance and performance of broilers at 21 days of age fed diet containing Solanum malacoxylon

description: AbstractIt was studied the performance and the amounts of calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K) and sodium (Na) excreta and carcasses of broilers at 21 days of age fed addition of Solanum malacoxylon (SM) in rations. It was used a completely randomized design with three treatments: 0.0, 2.5 and 5.0 g of SM/kg diet, five replicates of four birds each. Using 5.0g of SM/kg diet reduced weight gain, decreased feed conversion, although consumption has not been affected. The inclusion of the plant did not affect (p&gt;0.05) the levels of calcium, magnesium, potassium and sodium in excreta, and consequently the absorption of these minerals. The mineral composition of the carcasses was changed, and the concentrations of Na, Mg and K influenced. It is recommended that the addition to 2.5g of SM/kg of feed for broilers up to 21 days of age.
DOI: 10.6084/m9.figshare.7513910.v1
title: Minerals balance and performance of broilers at 21 days of age fed diet containing Solanum malacoxylon

description: AbstractIt was studied the performance and the amounts of calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K) and sodium (Na) excreta and carcasses of broilers at 21 days of age fed addition of Solanum malacoxylon (SM) in rations. It was used a completely randomized design with three treatments: 0.0, 2.5 and 5.0 g of SM/kg diet, five replicates of four birds each. Using 5.0g of SM/kg diet reduced weight gain, decreased feed conversion, although consumption has not been affected. The inclusion of the plant did not affect (p&gt;0.05) the levels of calcium, magnesium, potassium and sodium in excreta, and consequently the absorption of these minerals. The mineral composition of the carcasses was changed, and the concentrations of Na, Mg and K influenced. It is recommended that the addition to 2.5g of SM/kg of feed for broilers up to 21 days of age.
DOI: 10.6084/m9.figshare.7513448
title: Digestibility of phosphorus in powder and microgranular phosphate in diets for pigs

description: AbstractThis study was realized with the objective to determine the apparent and standardized digestibilities of phosphates to pigs in growing phase, employing two methodologies. Forty-two crossbred barrows with an initial weight of 37 ± 1.1kg were used in a randomized-block design in a 2 × 7 factorial arrangement, with two collection methods: total fecal collection and the use of a indicator (acid insoluble ash [AIA]) × seven treatments, which consisted of a control diet (CTR); three diets containing phosphate in powder form (PP): PPA= CTR + powder phosphate A, PPB= CTR + powder phosphate B, and PPC= CTR + powder phosphate C; and another three diets containing the microgranular phosphate (MP): MP15= CTR + microgranular phosphate 15%, MP45 = CTR + microgranular phosphate 45% and MP75= CTR + microgranular phosphate 75%). The values of 15, 45, and 75% correspond to the water-solubility of the phosphates. There were six replicates, and the pig was considered as experimental unit. The standardized digestibility coefficients of the phosphates assessed by the total collection method, in percent values, were: PPA = 86.9, PPB = 84.9, PPC = 81.9, MP15 = 89.4, MP45 = 88.8, and MP75 = 92.6. The standardized-digestibility coefficients of the phosphates evaluated by the indicator method (AIA) in percent values were: PPA = 75.9, PPB = 75.4, PPC = 75.6, MP15 = 84.9, MP45 = 78.0, and MP75 = 79.4. Considering the two methodologies evaluated in the present work, the microgranular phosphates constitute the best alternative for feeding pigs in the growth phase.
DOI: 10.6084/m9.figshare.7513448.v1
title: Digestibility of phosphorus in powder and microgranular phosphate in diets for pigs

description: AbstractThis study was realized with the objective to determine the apparent and standardized digestibilities of phosphates to pigs in growing phase, employing two methodologies. Forty-two crossbred barrows with an initial weight of 37 ± 1.1kg were used in a randomized-block design in a 2 × 7 factorial arrangement, with two collection methods: total fecal collection and the use of a indicator (acid insoluble ash [AIA]) × seven treatments, which consisted of a control diet (CTR); three diets containing phosphate in powder form (PP): PPA= CTR + powder phosphate A, PPB= CTR + powder phosphate B, and PPC= CTR + powder phosphate C; and another three diets containing the microgranular phosphate (MP): MP15= CTR + microgranular phosphate 15%, MP45 = CTR + microgranular phosphate 45% and MP75= CTR + microgranular phosphate 75%). The values of 15, 45, and 75% correspond to the water-solubility of the phosphates. There were six replicates, and the pig was considered as experimental unit. The standardized digestibility coefficients of the phosphates assessed by the total collection method, in percent values, were: PPA = 86.9, PPB = 84.9, PPC = 81.9, MP15 = 89.4, MP45 = 88.8, and MP75 = 92.6. The standardized-digestibility coefficients of the phosphates evaluated by the indicator method (AIA) in percent values were: PPA = 75.9, PPB = 75.4, PPC = 75.6, MP15 = 84.9, MP45 = 78.0, and MP75 = 79.4. Considering the two methodologies evaluated in the present work, the microgranular phosphates constitute the best alternative for feeding pigs in the growth phase.