cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7508909.v1
title: Productive performance and parasitological control of kids supplemented with umbu fruits (Spondias tuberosa Arruda)

description: Summary Native fruits from Caatinga vegetation can be an important alternative to improve the productive performance of kids in the semi-arid region of Brazil. This work aimed to evaluate the effect of supplementation with Umbuzeiro fruits in natura over the weight gain and anthelmintic control of kids kept in Buffel grass pasture in the semi-arid zone of Pernambuco, Brazil. Twenty-four castrated, crossbreed kids were allocated into three treatments: 1) Control (n = 8) fed exclusively with Buffel grass; 2) Umbu 1x (n = 8) fed with fruits once a week and 3) Umbu 3x (n = 8) fed with fruits for three times a week. The following parameters were evaluated: variation of body weight, faecal egg counts (FEC) and coproculture. Overall, the average consumption of Umbu fruits in natura was 1.48 kg/animal/day, which corresponded to 133.5 g daily dry matter intake (DMI/animal/day). There were no significant difference (P&gt;0.05) for any parameters evaluated. During the experimental period, the overall daily weight gain was variable between 108.75 to 116.70 g/animal/day and the average FEC was 436 eggs. In the present study, the goat kids supplemented with fresh umbu fruits showed a good productive performance, however the supplementation with umbu did not control the infestation of gastrointestinal nematodes in kids.
DOI: 10.6084/m9.figshare.7508909
title: Productive performance and parasitological control of kids supplemented with umbu fruits (Spondias tuberosa Arruda)

description: Summary Native fruits from Caatinga vegetation can be an important alternative to improve the productive performance of kids in the semi-arid region of Brazil. This work aimed to evaluate the effect of supplementation with Umbuzeiro fruits in natura over the weight gain and anthelmintic control of kids kept in Buffel grass pasture in the semi-arid zone of Pernambuco, Brazil. Twenty-four castrated, crossbreed kids were allocated into three treatments: 1) Control (n = 8) fed exclusively with Buffel grass; 2) Umbu 1x (n = 8) fed with fruits once a week and 3) Umbu 3x (n = 8) fed with fruits for three times a week. The following parameters were evaluated: variation of body weight, faecal egg counts (FEC) and coproculture. Overall, the average consumption of Umbu fruits in natura was 1.48 kg/animal/day, which corresponded to 133.5 g daily dry matter intake (DMI/animal/day). There were no significant difference (P&gt;0.05) for any parameters evaluated. During the experimental period, the overall daily weight gain was variable between 108.75 to 116.70 g/animal/day and the average FEC was 436 eggs. In the present study, the goat kids supplemented with fresh umbu fruits showed a good productive performance, however the supplementation with umbu did not control the infestation of gastrointestinal nematodes in kids.
DOI: 10.6084/m9.figshare.7515836
title: Substrates for biofilter in recirculating system in Nile tilapia larviculture production

description: SUMMARY Recirculating water system (RAS), provide to reduce water usage and to improve the quality by nutrient recycling, so biofilters are used to reduce ammonia concentrations by oxidation to nitrate, by nitrifying-bacteria. Biological filters have been utilized to maintain acceptable water parameters to larvae and juveniles, by decreasing ammonia concentrations. The objective of this experiment was to evaluate different substrates for aquarium biofilter on performance of Nile tilapia (Oreochromis niloticus) larvae, and water quality. One-thousand-two-hundred Nile tilapia larvae (initial length = 11.6 ± 0.82 mm; body weight (BW) =189.0 ± 0.44mg) were randomly allotted into one of twenty 6-L aquariums (60 larvae aquarium-1) with five different biofilter (4 aquariums each biofilter): (1) control, no substrate; (2) seashell-and granitic crushed stone-substrate; (3) granitic crushed stone substrate; (4) quartz gravel substrate; and (5) porcelain-substrate. The conductivity, turbidity, pH, nitrate, nitrite and ammonia values indicate that seashell and granitic crushed-stone, and porcelain-substrates had greater process of biofiltration effectiveness. Water oxygen did not differ among treatments, with all levels within the benchmark for the tilapia larvae. Fishes reared in aquarium with quartz gravel-and porcelain substrate fishes had greater BW, total and standard length compared with its from other substrates. Porcelain-substrate biofilter is indicated for tilapia larviculture due to improved weight and length and water quality.
DOI: 10.6084/m9.figshare.7515836.v1
title: Substrates for biofilter in recirculating system in Nile tilapia larviculture production

description: SUMMARY Recirculating water system (RAS), provide to reduce water usage and to improve the quality by nutrient recycling, so biofilters are used to reduce ammonia concentrations by oxidation to nitrate, by nitrifying-bacteria. Biological filters have been utilized to maintain acceptable water parameters to larvae and juveniles, by decreasing ammonia concentrations. The objective of this experiment was to evaluate different substrates for aquarium biofilter on performance of Nile tilapia (Oreochromis niloticus) larvae, and water quality. One-thousand-two-hundred Nile tilapia larvae (initial length = 11.6 ± 0.82 mm; body weight (BW) =189.0 ± 0.44mg) were randomly allotted into one of twenty 6-L aquariums (60 larvae aquarium-1) with five different biofilter (4 aquariums each biofilter): (1) control, no substrate; (2) seashell-and granitic crushed stone-substrate; (3) granitic crushed stone substrate; (4) quartz gravel substrate; and (5) porcelain-substrate. The conductivity, turbidity, pH, nitrate, nitrite and ammonia values indicate that seashell and granitic crushed-stone, and porcelain-substrates had greater process of biofiltration effectiveness. Water oxygen did not differ among treatments, with all levels within the benchmark for the tilapia larvae. Fishes reared in aquarium with quartz gravel-and porcelain substrate fishes had greater BW, total and standard length compared with its from other substrates. Porcelain-substrate biofilter is indicated for tilapia larviculture due to improved weight and length and water quality.
DOI: 10.6084/m9.figshare.7508915
title: Optimization of the national livestock sustainably

description: SUMMARY The objective of this work was to evaluate the calcium nitrate utilization in replacing to the soybean meal for ruminants diets under the mitigation of enteric methane aiming to determine the animal diet cost and the marginal costs for carbon rebates. The study was conducted in two stages, the first stage was in vitro gas production were performed in order to measure the enteric methane mitigation potential of the nitrate. The methane mitigation data were used in the second stage, which simulated a dairy farm with three feed systems: control system without nitrate, and systems with inclusion of 1.5 to 3% nitrate in the diet. The spreadsheets were used to evaluate the costs and revenues of each system resulting carbon credit sales of methane reduction in 10 years. The net present value (NPV) and the internal rate of return (IRR) were the indexes used in the financial evaluation.The carbon credit sale did not change the NPV significantly, however the inclusion of nitrate to 1.5 and 3% in animal feed showed economically feasible, because it reduced the diet value (R$5.89 e R$5.81/cow/day, respectively) in comparison to control diet (R$6.13/cow/day) besides contributing to the reduction and greenhouse gases. Therefore, the nitrate supplementation beside reduced the methane production, has the positive effect on the variable cost of the activity.
DOI: 10.6084/m9.figshare.7508915.v1
title: Optimization of the national livestock sustainably

description: SUMMARY The objective of this work was to evaluate the calcium nitrate utilization in replacing to the soybean meal for ruminants diets under the mitigation of enteric methane aiming to determine the animal diet cost and the marginal costs for carbon rebates. The study was conducted in two stages, the first stage was in vitro gas production were performed in order to measure the enteric methane mitigation potential of the nitrate. The methane mitigation data were used in the second stage, which simulated a dairy farm with three feed systems: control system without nitrate, and systems with inclusion of 1.5 to 3% nitrate in the diet. The spreadsheets were used to evaluate the costs and revenues of each system resulting carbon credit sales of methane reduction in 10 years. The net present value (NPV) and the internal rate of return (IRR) were the indexes used in the financial evaluation.The carbon credit sale did not change the NPV significantly, however the inclusion of nitrate to 1.5 and 3% in animal feed showed economically feasible, because it reduced the diet value (R$5.89 e R$5.81/cow/day, respectively) in comparison to control diet (R$6.13/cow/day) besides contributing to the reduction and greenhouse gases. Therefore, the nitrate supplementation beside reduced the methane production, has the positive effect on the variable cost of the activity.
DOI: 10.6084/m9.figshare.7506554.v1
title: Sheep performance alternative agroforestry system in the Cerrado ecotone: Amazon

description: SUMMARY Agroforestry systems can be alternative to the reintroduction of areas into disuse, secondary forest, for sheep production. This study evaluated the performance of sheep integrated grass Mombasa and secondary forest of babassu, comparing it with the conventional system of production in full sun. In these two systems were evaluated the climatic conditions and the agronomic and qualitative characteristics of the grass. In animals were evaluated weight gain, consumption, feed conversion, displacement processes and animal productivity. It was observed that ovine silvipastoral in this type of system is possible, but there is a reduction of the animal performance over the traditional operating system. The environment in the integrated system is hot and humid, and the forage density is low, causing the animals to spend more energy to look for food. The accumulation of forage and tillering in the integrated system area reduced and there is reduced carrying capacity and productivity. Despite the reduction in productivity in the integrated system, its operation allows the production of approximately half of what is produced in the conventional system.
DOI: 10.6084/m9.figshare.7506554
title: Sheep performance alternative agroforestry system in the Cerrado ecotone: Amazon

description: SUMMARY Agroforestry systems can be alternative to the reintroduction of areas into disuse, secondary forest, for sheep production. This study evaluated the performance of sheep integrated grass Mombasa and secondary forest of babassu, comparing it with the conventional system of production in full sun. In these two systems were evaluated the climatic conditions and the agronomic and qualitative characteristics of the grass. In animals were evaluated weight gain, consumption, feed conversion, displacement processes and animal productivity. It was observed that ovine silvipastoral in this type of system is possible, but there is a reduction of the animal performance over the traditional operating system. The environment in the integrated system is hot and humid, and the forage density is low, causing the animals to spend more energy to look for food. The accumulation of forage and tillering in the integrated system area reduced and there is reduced carrying capacity and productivity. Despite the reduction in productivity in the integrated system, its operation allows the production of approximately half of what is produced in the conventional system.
DOI: 10.6084/m9.figshare.7515161
title: Productivity and forage quality of buckwheat (“Fagopyrum esculentum” Moench) and pearl millet (“Pennisetum glaucum” (L.) R.BR)

description: SUMMARY This trial compared forage production and quality of Pearl Millet and Buckwheat in three cutting age on irrigation conditions during dry season, evaluated in a randomized block split plot design with tree replications. Was determined content of Dry Matter (DM), Crude Protein (CP), Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), Mineral Matter (MM) and in vitro gas production. Forage production of Buckwheat was higher than Pearl Millet in all the cutting ages. Pearl Millet CP content was similar to all three cuts but Buckwheat CP content was higher in the first cut and reduced in the others. The NDF content of Buckwheat was higher in the first cut and reduced in the others, meanwhile Pearl Millet presented low NDF value in the first cut but increased in the second and third cut. The Buckwheat presented high ADF content than Pearl Millet in all the cuts. In vitro gas production from Pearl Millet was higher in the first cut but more high for Buckwheat in the second and third cuts. Buckwheat produced more forage with high quality than Pearl Millet during dry season.
DOI: 10.6084/m9.figshare.7515161.v1
title: Productivity and forage quality of buckwheat (“Fagopyrum esculentum” Moench) and pearl millet (“Pennisetum glaucum” (L.) R.BR)

description: SUMMARY This trial compared forage production and quality of Pearl Millet and Buckwheat in three cutting age on irrigation conditions during dry season, evaluated in a randomized block split plot design with tree replications. Was determined content of Dry Matter (DM), Crude Protein (CP), Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), Mineral Matter (MM) and in vitro gas production. Forage production of Buckwheat was higher than Pearl Millet in all the cutting ages. Pearl Millet CP content was similar to all three cuts but Buckwheat CP content was higher in the first cut and reduced in the others. The NDF content of Buckwheat was higher in the first cut and reduced in the others, meanwhile Pearl Millet presented low NDF value in the first cut but increased in the second and third cut. The Buckwheat presented high ADF content than Pearl Millet in all the cuts. In vitro gas production from Pearl Millet was higher in the first cut but more high for Buckwheat in the second and third cuts. Buckwheat produced more forage with high quality than Pearl Millet during dry season.
DOI: 10.6084/m9.figshare.7515947
title: Logistic regression models for evaluation of physico-chemical composition of bovine milk “in natura”

description: SUMMARY This study aimed to evaluation, through logistic regression model, the relationship between physical-chemistry composition of bovine milk in natura and probability of occurrence of mastitis in crossbred female cattle from Hostein, Gyr and Jersey breed. The result of the CMT (positive =1 and negative = 0) was used to study the probability of occurrence of mastitis that was modeled using logistic regression. The final model consists of fat, lactose and somatic cell count (SCC) was selected by the Stepwise procedure available in SAS®, from the regressive variables farm, protein, degreased dry extract, fat, lactose, and SCC. It was observed that 53.86% of the animals had subclinical mastitis. The CCS, fat and lactose influenced the probability of incidence of mastitis and an increase in one unit of these variables is associated with an increase of 0.4% and 52.8% and reduction of 96.5%, respectively in the probability of incidence of mastitis. The CCS is the variable with the greatest impact on probability of mastitis, and the count of 600.000 cells/mL result in the 28% of probability of incidence of mastitis. The logistic regression model to quantify the impact from mastitis in the physical-chemistry composition of milk in natura in the dairy herd.
DOI: 10.6084/m9.figshare.7515947.v1
title: Logistic regression models for evaluation of physico-chemical composition of bovine milk “in natura”

description: SUMMARY This study aimed to evaluation, through logistic regression model, the relationship between physical-chemistry composition of bovine milk in natura and probability of occurrence of mastitis in crossbred female cattle from Hostein, Gyr and Jersey breed. The result of the CMT (positive =1 and negative = 0) was used to study the probability of occurrence of mastitis that was modeled using logistic regression. The final model consists of fat, lactose and somatic cell count (SCC) was selected by the Stepwise procedure available in SAS®, from the regressive variables farm, protein, degreased dry extract, fat, lactose, and SCC. It was observed that 53.86% of the animals had subclinical mastitis. The CCS, fat and lactose influenced the probability of incidence of mastitis and an increase in one unit of these variables is associated with an increase of 0.4% and 52.8% and reduction of 96.5%, respectively in the probability of incidence of mastitis. The CCS is the variable with the greatest impact on probability of mastitis, and the count of 600.000 cells/mL result in the 28% of probability of incidence of mastitis. The logistic regression model to quantify the impact from mastitis in the physical-chemistry composition of milk in natura in the dairy herd.
DOI: 10.6084/m9.figshare.7518347.v1
title: Activity of disinfectants against serotypes of “Salmonella” isolated from poultry farms

description: SUMMARY The objective of this study was to evaluate the efficacy in vitro of disinfectants commonly used in sanitizing poultry farms and biodegradable disinfectants against Salmonella serotypes isolated from poultry farms in the state of Parana, Brazil. The experiments were performed using the contact time of 20 minutes and disinfectants tested in three concentrations recommended by the manufacturer, half the recommended concentration and twice the recommended concentration, as well as the presence and absence of organic matter. In general, all disinfectants caused significant reduction in the microorganisms counts compared to the control. In the absence of organic matter, disinfectants based on organic acids showed the best results against the serotype Gallinarum biovar Gallinarum and disinfectants based onglutaraldehyde and sodium hypochlorite against the serotypes Typhimurium and Intantis. In the presence of organic matter, as commonly found in the poultry environment, it was observed that all disinfectants showed decreased effectiveness, and the disinfectant based on organic acids had the lowest CFU counts. Accordingly, the disinfectant based on organic acids proved to be potential alternative for use in poultry due to effectiveness in controlling Salmonella serotypes isolated from poultry.
DOI: 10.6084/m9.figshare.7509542
title: Covariance structure for carcass and body size traits with repeated measures in sheep from different genetic groups

description: SUMMARY The purpose of this study was to evaluate the influence of environmental effects on body measurements, weight and carcass quality traits with structure of repeated measurements over time in sheep from different genetic groups. Collections were carried out from lamb in until 180 days of age, during the years 2012 and 2013, in 92 lambs from three genetic groups – 29from Santa Inês breed, 43 crossbred Dorper x Santa Inês, and 20 crossbred Dorper x Morada Nova – belonging to two flocks. Loin eye area, loin depth, subcutaneous fat thickness, height at withers, body length, thoracic depth, and body weight were measured. The effects of collection period, type of birth, sex, flock, genetic group, age of the animal at the time of measurement as a covariate in linear and quadratic effects, and interactions between the different effects were considered in the statistical model. Different structures were tested for modeling the residual (co) variance matrix. The structure that best fit the data was the Composed Symmetry. The interaction between genetic group and age as linear and quadratic effect was significantly important for modeling the traits studied. The environmental effects of the flock, type of birth, genetic group, and collection period influenced carcass traits, body measurements and weight. The genetic group originated from the Dorper x Morada Nova cross showed lower body size and better carcass traits.
DOI: 10.6084/m9.figshare.7509542.v1
title: Covariance structure for carcass and body size traits with repeated measures in sheep from different genetic groups

description: SUMMARY The purpose of this study was to evaluate the influence of environmental effects on body measurements, weight and carcass quality traits with structure of repeated measurements over time in sheep from different genetic groups. Collections were carried out from lamb in until 180 days of age, during the years 2012 and 2013, in 92 lambs from three genetic groups – 29from Santa Inês breed, 43 crossbred Dorper x Santa Inês, and 20 crossbred Dorper x Morada Nova – belonging to two flocks. Loin eye area, loin depth, subcutaneous fat thickness, height at withers, body length, thoracic depth, and body weight were measured. The effects of collection period, type of birth, sex, flock, genetic group, age of the animal at the time of measurement as a covariate in linear and quadratic effects, and interactions between the different effects were considered in the statistical model. Different structures were tested for modeling the residual (co) variance matrix. The structure that best fit the data was the Composed Symmetry. The interaction between genetic group and age as linear and quadratic effect was significantly important for modeling the traits studied. The environmental effects of the flock, type of birth, genetic group, and collection period influenced carcass traits, body measurements and weight. The genetic group originated from the Dorper x Morada Nova cross showed lower body size and better carcass traits.
DOI: 10.6084/m9.figshare.7518347
title: Activity of disinfectants against serotypes of “Salmonella” isolated from poultry farms

description: SUMMARY The objective of this study was to evaluate the efficacy in vitro of disinfectants commonly used in sanitizing poultry farms and biodegradable disinfectants against Salmonella serotypes isolated from poultry farms in the state of Parana, Brazil. The experiments were performed using the contact time of 20 minutes and disinfectants tested in three concentrations recommended by the manufacturer, half the recommended concentration and twice the recommended concentration, as well as the presence and absence of organic matter. In general, all disinfectants caused significant reduction in the microorganisms counts compared to the control. In the absence of organic matter, disinfectants based on organic acids showed the best results against the serotype Gallinarum biovar Gallinarum and disinfectants based onglutaraldehyde and sodium hypochlorite against the serotypes Typhimurium and Intantis. In the presence of organic matter, as commonly found in the poultry environment, it was observed that all disinfectants showed decreased effectiveness, and the disinfectant based on organic acids had the lowest CFU counts. Accordingly, the disinfectant based on organic acids proved to be potential alternative for use in poultry due to effectiveness in controlling Salmonella serotypes isolated from poultry.