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Search Results: 1 - 10 of 195429 matches for " Aderbal Marcos de Azevêdo;Oliveira "
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The effect of supplementation on the tissue composition of the commercial cuts of cross-bred F1 (Boer × SPRD) finished in native pasture
Silva, Rayana de Medeiros;Pereira Filho, José Morais;Silva, Anderson Luiz Nascimento da;Cezar, Marcílio Fontes;Silva, Aderbal Marcos de Azevêdo;Oliveira, Nadjanara Souza;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000600026
Abstract: the present study aimed to assess the effect of levels of supplementation with concentrate on the tissue composition of commercial cuts of goats finished in native pasture. it was used 24 non-castrated cross-bred f1 (boer × sprd) goats at the age of 120 days, with initial average body weight (bw) of 15.52 kg distributed in four levels of supplementation with concentrated feed (0.0; 0.5; 1.0 and 1.5% of body weight in dry matter) and slaughtered at 25.12 kg; 26.62 kg; 28.56 kg and 29.19 kg, respectively, corresponding to 218 days of life. the carcass was sectioned in the half, and from the left half of the carcass, the following cuts were separated: leg, loin, ribs, shoulder and neck, which were dissected into muscle, bone and fat, with the results expressed in weight and yield of the tissues in relation to the weight of the cut. supplementation incresead the muscle weight, as well as the fat weight and yield and decreased the muscle:fat relationship; however there was no influence on the proportion of muscle in the five studied cuts. therefore, in order to obtain better finished commercial meat cuts, supplementation of 1.0 and 1.5% of body weight is recommended. nevertheless, supplementation is unnecessary for obtaining lighter meat cuts with a good proportion of muscle.
Forage supply in thinned Caatinga enriched with buffel grass (Cenchrus ciliaris L.) grazed by goats and sheep
Formiga, Luiza Daiana Araújo da Silva;Pereira Filho, José Morais;Silva, Aderbal Marcos de Azevêdo;Oliveira, Nadjanara Souza;Soares, Diogo da Costa;Bakke, Olaf Andreas;
Acta Scientiarum. Animal Sciences , 2012, DOI: 10.4025/actascianimsci.v34i2.12548
Abstract: forage supply from herbs was assessed in a thinned caatinga enriched with buffel grass (cenchrus ciliaris l.) exposed to goat and sheep grazing. the 2.4 ha experimental area, located at the experimental station of the federal university of campina grande, in santa terezinha, paraíba state, brazil, was divided into four 0.6 ha paddocks, which were further subdivided into two 0.3 ha experimental plots. twelve f1 (boer x srd) goats and 12 santa inês sheep were divided in four groups of six animals of the same species. the herbaceous vegetation was separated into buffel grass (cenchrus ciliaris l.), dicotyledons and other grass species. treatments were randomized to plots according to a completely random design with two treatments, four replications, with measures repeated in time (july/1, aug/1, sept/1 and oct/1. buffel grass dry mater (dm) availability was higher in the sheep grazed than in the goat-grazed area. buffel grass dm supply did not change from july to september, while dicotyledons dm supply decreased. grazing affected availability, accumulation rate and supply of the forage produced (dm basis) by dicotyledonous herbs. buffel grass forage availability was not affected during the experimental period.
Exigência líquida de zinco, cobre e ferro para cordeiros em pastejo no semiárido = Net requirements of zinc, copper and iron to grazing lambs in semiarid
Rodrigo de Souza Mendes,Aderbal Marcos de Azevêdo Silva,Guilherme de Lira Sobral Silva,Giovanna Henriques da Nóbrega
Acta Scientiarum : Animal Sciences , 2010,
Abstract: Este trabalho teve por objetivo determinar as exigências líquidas de zinco (Zn), cobre (Cu) e ferro (Fe) de cordeiros Santa Inês em pastejo na regi o semiárida. Os animais com peso vivo entre 20 e 30 kg apresentaram conteúdo corporal no peso de corpo vazio (PCV) para esses minerais de 60,26 a 76,37 mg kg-1, 10,78 a 16,72 mg kg-1 e 133,44 a 126,98 mg kg-1, respectivamente. Observou-se que com o aumento do PCV, as concentra es de Cu e Zn também aumentavam, enquanto a de Fe diminuía. As exigências líquidas para cordeiros em regime de pastejo variaram de 1,69 a 7,86 mg dia-1 para Cu e 7,20 a 27,4 mg dia-1 para Zn. Os resultados obtidos no presente trabalho, para exigências desses minerais, foram maiores do que as exigências dietéticas recomendadas pelo do NRC (1985), que s o de 7 a 11 mg, com máximo de 25 mg e de 20 a 30 mg, com máximo de 750 mg kg-1 de alimento, para Cu e Zn, respectivamente. As exigências líquidas de Fe variaram de 8,46 a 26,66 mg dia-1, e portanto, menores do que as recomendadas pelo NRC (1985) para este mineral que s o de 30 a 50 mg kg-1 de alimento. This work had as an aim determine the net requirements of Zinc (Zn), Copper (Cu) and Iron (Fe) of Santa Inês lambs raised grazing in the semi-arid area. Animals with body weight between 20 e 30 kg showed corporea contents in empty body weight (EBW) in these minerals from 60.26 to 76.37 mg kg-1, 10.78 to 16.72 mg kg-1 and from 133.44 to126.98 mg kg-1, respectively. It was observed that increasing the PCV increased Cu and Zn concentration but decreased the Fe concentratiêson. The net requirements for lambs under pasture varied from 1.69 to 7.86 mg day-1 for Cu and from 7.20 to 27.4 mg day-1 for Zn. The results obtained in the present experiment suggest that the dietary requirements in Cu and Zn are higher than those recommended by NRC (1985), between 7 and 11 mg, with a maximum value of 25 mg for Cu and between 20 and 30 mg, with a maximum of 750 mg kg-1 of food for Zn, respectively. The net requirements for Fe varied from 8.46 to26.66 mg day-1 and were lower than that recommended by NRC (1985) for this mineral, from 30 to 50 mg kg-1 of diet.
Consumo, digestibilidade e produ o de cabras leiteiras alimentadas com dietas contendo diferentes fontes de lipídios = Intake, digestibility and milk production of dairy goats fed with different fat sources
Guilherme de Lira Sobral Silva,Aderbal Marcos de Azevêdo Silva,Giovanna Henriques da Nóbrega,Solange Absal?o Azevedo
Acta Scientiarum : Animal Sciences , 2010,
Abstract: Foram utilizados 12 animais da ra a Saanen, com peso vivo de 35 kg e produ o leiteira de 1,2 kg, para avalia o da suplementa o lipídica sobre o consumo, digestibilidade, produ o e composi o do leite e quatro animais fistulados no rúmen para observa o do pH. Os tratamentos consistiram de uma dieta-controle e três dietas suplementadas com semente de faveleira, torta de faveleira e caro o de algod o. Os dados foram analisados em quadrados latinos 4 x 4, com três repeti es e as análises estatísticas feitas pelo teste de Tukey a 5% de probabilidade. A suplementa o lipídica diminuiu o consumo de matéria seca e da maioria dos nutrientes, com reflexo sobre a produ o e composi o do leite de cabras Saanen. A suplementa o com torta de faveleira e com caro o de algod o pode ser considerada uma boa alternativa alimentar para cabras Saanen. This study used 12 Saanen goats with BW of 35 kg and daily milkproduction of 1.2 kg, in order to evaluate the effect of fat supplementation on the intake, digestibility and milk yield. Four animals were fistulated in the rumen for pH observation. The treatments consisted of a control diet and three diets supplemented with faveleira seed, faveleira cake and cotton seed. The data were analyzed in 4 x 4 chi squares, with three repetitions and the statistical analyses by Tukey's test at 5% probability. Fat supplementation decreases the intake of dry matter and of most nutrients, affecting milk yield and the composition of Saanen goat milk. Supplementation with faveleira cake and cotton seeds can be considered as an alternative feed for those animals.
Composi o corporal, exigências em proteína e energia para ganho de peso de caprinos em pastejo = Body composition, protein and energy requirements for weight gain of boer mixed-breed goat kids on pasture
Giovanna Henriques da Nóbrega,Aderbal Marcos de Azevêdo Silva,José Morais Pereira Filho,Solange Absal?o Azevedo
Acta Scientiarum : Animal Sciences , 2008,
Abstract: Objetivou-se com este trabalho estimar a composi o corporal e as exigências nutricionais em proteína e energia para ganho de peso de cabritos Boer SRD, na fase de crescimento, em pastejo na regi o semiárida. O experimento foi desenvolvido na fazenda‘Nupeárido’, no município de Patos, Paraíba. Foram utilizados 24 cabritos com peso corporal médio inicial de 15 kg, em pastejo, distribuídos em quatro tratamentos com níveis crescentes de suplementa o concentrada (0; 0,5; 1,0 e 1,5% do peso corporal). Os animais, mantidos em sistema de semiconfinamento, receberam suplementa o alimentar, em baias individuais, ao serem recolhidos diariamente. Quando um dos animais de cada grupo atingia 30 kg de peso corporal, todos os demais animais do grupo eram abatidos após jejum de 16h. A composi o corporal variou de 185,3 a 184,0 g de proteína; 53,0 a 120,2 g de gordura e 1.642 a 2.356 kcal kg-1 de corpo vazio. As exigências líquidas em proteína e energiavariaram de 146 a 145 mg e 1,92 a 2,75 kcal g-1 de ganho, respectivamente, para animais de 15 a 30 kg de peso corporal. The objective of this work was to estimate the body composition and the nutritional requirements in protein and energy for the weight gain of Boer and Mixed-breed goat kids, during growth phase, on pasture in the semi-arid region. The work was developed at ‘Nupeárido’ farm, in Patos- PB. Twenty-four goat kids were used, with average initial body weigh of 15 kg, distributed into four treatments with increasing levels of concentrate supplementation (0, 0.5, 1.0 and 1.5% of body weight). The animals, maintained under semiconfinement system, received feeding supplementation in individual stalls when they were gathered daily. Whenever one of theanimals of each group reached 30 kg of body weigh, all other animals of the group were slaughtered after a 16-hour fast. The body composition varied from 185.3 to 184.0 g of protein; 53.0 to 120.2 g of fat and 1,642 to 2,356 kcal kg-1 of empty body. The net requirements in protein and energy on growing varied from 146 to 145 mg and 1.92 to 2.75 kcal g-1 of gain, respectively, for animals from 15 to 30 kg of body weigh.
Composi o corporal e exigências de macrominerais para ganho de peso de caprinos em pastejo = Body composition and macroelements requirements for weight gain of boer mixed-breed kid goats on pasture
Giovanna Henriques da Nóbrega,Aderbal Marcos de Azevêdo Silva,José Morais Pereira Filho,Solange Absal?o Azevedo
Acta Scientiarum : Animal Sciences , 2009,
Abstract: Este trabalho teve como objetivo estimar a composi o corporal e exigências nutricionais em macrominerais para ganho de peso de cabritos Boer SRD, na fase de crescimento, em pastejo na regi o semiárida. O experimento foi desenvolvido na fazenda ‘Nupeárido’, no município de Patos, Estado da Paraíba. Foram utilizados 24 cabritos com peso corporal médio inicial de 15 kg, em pastejo, distribuídos em quatro tratamentos com níveis crescentes de suplementa o concentrada (0; 0,5; 1,0 e 1,5% do peso corporal). Os animais, mantidos em sistema de semiconfinamento, receberam suplementa o alimentar,em baias individuais, ao serem recolhidos diariamente. Quando um dos animais de cada grupo atingia 30 kg de peso corporal, todos os demais animais do grupo eram abatidos após jejum de 16 h. A composi o corporal estimada variou de 15,36 a 17,17 g de Ca; 8,16 a 8,24 g de P; 1,00 a 1,42 g de Na e foi de 1,23 g de K por kg de corpo vazio. As exigências líquidas em Ca, P e Na variam, respectivamente, de 13,96 a 15,61 mg, 6,55 a 6,62 mg e 1,16 a 1,65 mg, e é de 0,98 mg de K por g de ganho, para animais de 15 a 30 kg de peso corporal. An experiment was conducted to estimate the body composition and nutritional requirements of macrominerals for the weight gain of Boer and mixedbreed kid goats, in the phase of growth on pasture in the semi-arid region. The experiment was developed at ‘Nupeárido’ farm, in Patos, Paraíba State. Twenty-four kids were used, with average initial body weight of 15 kg, distributed into four treatments with increasing levels of concentrate supplementation (0, 0.5, 1.0 and 1.5% of body weight). The animals, maintained under semi-confinement system, received feeding supplementation in individual stalls when they were gathered daily. When one of the animals of each group reached 30kg of body weight, all other animals in the group were slaughtered after a 16-hour fast. Bodycomposition varied from 15.36 to 17.17 g of Ca; 8.16 to 8.24 g of P; 1.00 to 1.42 g of Na, and 1.23 g of K per kg of empty body weight. The net requirements of Ca, P and Na varied, respectively, from 13.96 to 15.61 mg, 6.55 to 6.62 mg and 1.16 to 1.65 mg, and is of 0.98 mg of K by gram of weight gain for animals between 15 and 30 kg of body weight.
Efeito da inclus?o de fontes lipídicas na dieta de cabras em lacta??o sobre os parametros sanguíneos
Silva, Guilherme de Lira Sobral;Silva, Aderbal Marcos de Azevêdo;Nóbrega, Giovanna Henriques;Azevedo, Solange Absal?o;Pereira Filho, José Morais;Mendes, Rodrigo de Souza;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000100030
Abstract: the study of the metabolic profile has as objective to evaluate the nutritional status or possible metabolic disturbances that can damage the health and consequently the herd performance. in this work, the metabolic profile of lactating goats was evaluated, submitted to diets with different fat sources. 12 saanen goats with bw of 35 kg and daily milk production of 1,2 kg were used, distributed into a latin square with three repetitions. the diet comprised, without fat supplementation, tc (control) and with fat supplementation: sf (favelone seed); tf (favelone cake) and ca (cotton seed).the experiment was developed in four experimental periods of 14 days, with 10 days of adaptation to diets and four days for samples collection. in the last day of each period were collected blood samples. the inclusion of oleaginous seed into the lactating goats' diet decreased the dry matter consumption for metabolic unit (cmu) and consumption of crude protein for metabolic unit (cpmu). no significant differences in serum urea, creatinine, ggt (gamma glutamyltransferase), calcium, phosphorus, magnesium or glucose values were noticed in any of the four treatments. the serum levels of albumin in the animals that received tf were higher (p<0.05) than the animals of the control group. this work suggests that the oleaginous sources can be used as fat supplementation of lactating saanen goats; however, animals fed the tf showed a healthier metabolic profile due to the fat supplement.
Prediction of carcass tissue composition of F1 crossbred goats finished on native pasture
Silva, Rayana de Medeiros;Pereira Filho, José Morais;Silva, Aderbal Marcos de Azevêdo;Cezar, Marcílio Fontes;Silva, Anderson Luiz Nascimento da;Medeiros, Ariosvaldo Nunes de;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000100026
Abstract: the objective of this study was to estimate tissue composition of the carcass from physical composition of commercial cuts of f1 crossbred goats (boer with females of non-defined racial standard) finished on native pasture with four levels of supplementation with concentrate (0.0; 0.5; 1.0 and 1.5% of bw in dry matter). it was used 24 non-castrated animals at initial body weight of 15.52 kg and at 120 days of age. the carcass was sectioned in the half, and from the lefthalf carcass, the following cuts were detached: leg, loin, ribs, shoulder and neck, which were dissected in muscle, bone and fat. carcass weight and yield were predicted from the weight and yield of tissues in the commercial cuts by regression analysis. all the cuts can be used to predict muscle and fat weight in the carcass. for the muscle, the relationship was linear and positive in the cuts leg, ribs, shoulder and neck, and cubic in the loin; for all the cuts, fat kept a linear relationship with the carcass. muscle and fat yield of all the commercial cuts showed a positive linear relationship with carcass yield, except for rib fat, for which a cubic relationship was found. considering all the results obtained and using the relationship with the highest determination coefficient, the ribs were the cut that provided the best estimate of the carcass muscle and fat yields of f1 crossbred goats (boer with females of non-defined racial standard) finished on native pasture.
Effect of supplementation on the performance of F1 crossbred goats finished in native pasture
Carvalho Júnior, Aloísio Monteiro de;Pereira Filho, José Morais;Silva, Rayana de Medeiros;Silva, Aderbal Marcos de Azevêdo;Cezar, Marcílio Fontes;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011001100032
Abstract: the present study aimed to assess the effect of supplementation on the performance of f1 (boer × females of no defined breed) goats finished in native pasture. the experiment was conducted at the universidade federal de campina grande, patos campus, paraíba, brazil, with twenty-four 120-day-old non-castrated f1 (boer × ndb) male goats, with a 15.52 kg live weight (lw). animals were distributed in four levels of supplementation (0.0; 0.5; 1.0; 1.5% of body) and six replicates. in order to perform the evaluation of dry matter availability, the herbaceous vegetation was divided into grass and herbaceous dicotyledon and evaluated at the beginning (5/28/2007), in the middle (7/9/2007) and at the end (8/6/2007) of the experiment. in the beginning of the experiment, the availability of grass dry matter was 1,102.89 kg/ha, and at the end of the experiment, the availability of the referred matter was greater (1,494.81); on the other hand, the opposite occurred for the dicotyledons, with a dry matter content of 1,759.46 kg/ha in the beginning of the experiment, and only 236.76 kg/ha at the end of the experiment. supplementation made it possible to estimate the increase in dry matter intake of 257.15 g/day and of 20.79 g/kg0.75/day, as well as the daily weight gain of 103 g for each percentage point increase that resulted from supplementation. the availability and nutritional quality of forage had a strong influence on the effect of supplementation on dry matter intake, with a negative response for supplementation levels of up to 0.74% of the live weight consequently, the finishing of f1 crossbred goats in a grazing area in the caatinga can be improved with the supplementation of concentrate at levels 1.0 to 1.5% of the live weight.
Body composition and nutritional requirements of protein and energy for body weight gain of lambs browsing in a tropical semiarid region
Silva, Aderbal Marcos de Azevêdo;Santos, Ecileide Mamede dos;Pereira Filho, José Morais;Bakke, Olaf Andreas;Gonzaga Neto, Severino;Costa, Roberto Germano da;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000100028
Abstract: this study evaluated body fat, protein and energy contents and nutritional requirements for body weight (bw) gain of lambs in tropical semiarid conditions. thirty-two castrated santa inês 3-to-4-month old lambs (initial bw: 15.8 kg ± 1.4 kg) were used. eight lambs were initially slaughtered to serve as the reference for initial body weight composition. the remaining 24 animals were placed in a randomized block with three treatments and eight replications. each one of the eight experimental blocks consisted initially of three 15 kg lambs to which treatments (daily supplement levels: 0.0, 1.0, and 1.5% of body weight of a corn, soybean and minerals concentrate mixture adjusted for a daily 200 g bw gain at 1.5% level) were randomly assigned. as one of the lambs reached 30 kg all three were slaughtered. body composition (per kg of empty body weight - ebw), ranged from 171.59 to 145.84 g protein, from 0.53 to 319.00 g fat, and from 2,06 to 3,90 mcal energy, for lambs from 15 to 30 kg ebw, respectively. net requirements for 200 g bw gain/day ranged from 25.99 to 22.09 g protein and from 0.311 to 0.591 mcal energy for lambs from 15 to 30 kg ebw, respectively. santa inês lambs browsing in tropical semiarid regions require more protein and less energy than lambs raised in temperate regions or kept in feedlots in tropical areas, as reported in the literature.
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