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| Registros recuperados: 26 | |
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| Amorim,P.L.; Fonseca,D.M.; Santos,M.E.R.; Pimentel,R.M.; Rodrigues,J.P.P.; Chizzotti,F.H.M.; Vitor,C.G.. |
| ABSTRACT The effect of four nitrogen levels (0, 40, 80 and 120kg N ha-1), applied before deferment on the beef cattle production and structural variables on Urochloa decumbens (signal grass) were assessed from January to October 2012 and from January to September 2013. A randomized block design with three replicates was adopted, in an arrangement of repeated measures in time (grazing period). An interaction effect between nitrogen level and grazing period was observed on extended-plant height and herbage mass. As the nitrogen levels were increased, extended-plant height, herbage mass, total herbage allowance, and efficiency of conversion of fertilizer into herbage were increased. Throughout the grazing period, pasture height, extended-plant height,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Deferrment; Seasonality; Tropical pasture; Urochloa decumbens. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401395 |
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| Sousa,Wandrick Hauss de; Cartaxo,Felipe Queiroga; Costa,Roberto Germano; Cezar,Marcílio Fontes; Cunha,Maria das Graças Gomes; Pereira Filho,José Morais; Santos,Neube Michel dos. |
| The objective of this study was to evaluate performance, carcass dressing and gross profit margin of lambs of different genotypes finished in feedlot with diets containing two levels of energy (2.40 Mcal/kg dry matter - DM or 2.90 Mcal/kg DM). Fifty-four non-castrated lambs of the following genotypes were used: Santa Inês, F1 Dorper × Santa Inês and F1 Santa Inês × undefined breed at approximately 150 d of age averaging 22.6 kg of live body weight. Lambs subjected to the diet containing 2.90 Mcal/kg DM stayed in feedlot for a shorter period of time. Moreover, they showed lower intake of dry matter and water in addition to greater daily weight gain and corporal score. There was interaction of feed conversion, carcass dressing yield and gross profit margin.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Dorper; Dry matter intake; Feed conversion; Santa Inês; Sheep. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500028 |
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| Devincenzi,Thais; Nabinger,Carlos; Cardoso,Fernando Flores; Nalério,Élen Silveira; Carassai,Igor Justin; Fedrigo,Jean Kássio; Tarouco,Jaime Urdapilleta; Cardoso,Leandro Lunardini. |
| The present study was conducted to assess carcass features, physicochemical and sensory parameters of meat from steers finished on three types of pastures: natural pasture; natural pasture improved, fertilized and oversown with winter species; and annual summer grassland. The experiment was conducted from December 14, 2009 to November 30, 2010, with treatments distributed in a completely randomized design with a different number of replicates. Animals were used as experimental units. Experimental animals were Aberdeen Angus steers with twenty months of initial age and 354±27.4 kg of live weight, on average. The highest average daily gains were obtained for the annual summer grassland. There was no effect of treatments on carcass conformation. The highest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Fertilized natural pasture; Sensory panel; Sorghum pasture; Tenderness. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400030 |
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| Teixeira Neto,Milton Rezende; Cruz,Jurandir Ferreira da; Malhado,Carlos Henrique Mendes; Carneiro,Paulo Luiz Souza; Nunes,Rita de Cássia Santos; Souza,Luiz Miranda; Souza,Luiz Eduardo Barreto de. |
| The objective of this study was to characterize body biometrics of Santa Ines sheep during growth. Data from 4,038 animals, males and females, with ages from four to 36 months, from different herds participating in the National Agricultural Fair in Bahia from 2003 to 2008 were used. The characteristics evaluated were: body weight, average daily gain, body length, thoracic circumference, anterior height and posterior height. The mean values found were compared by the Student-Newman-Keuls test. All characteristics studied showed gradual change with aging, and it is worth-noting that age had positive effect on body weight, body length, thoracic circumference, anterior height and posterior height and negative effect on average daily gain. Average daily gain... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Body development; Body measurements; Body weight. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100009 |
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| Silva,Maurício Dallmann da; Lobato,José Fernando Piva; Vaz,Ricardo Zambarda; Eloy,Lidiane Raquel; Vaz,Márcia Bitencourt. |
| ABSTRACT Body development and reproductive performance of a hundred forty-two 14 to 15-month-old heifers, classified at weaning according to frame size as small, medium, and large, were evaluated. The parameters evaluated were: body weight, hip height, body condition score, weight gain, ovarian activity, and pregnancy rate. At weaning, body weight and hip height were significantly different among frame scores, (small – 133.0 kg, 92.2 cm; medium – 158.5 kg, 96.6 cm; and large – 185.2 kg; 100.2 cm). After weaning, heifers grazed together on natural pastures during the autumn and on ryegrass (Lolium multiflorum La.) during the winter and spring. Frame score differences remained until the beginning of the breeding season (BS), starting on average at 14 months... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Age at conception; Average daily gain; Body condition score; Hip height; Ovarian activity; Pregnancy rate. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100400 |
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| Fernandes,Sergio Rodrigo; Monteiro,Alda Lúcia Gomes; Dittrich,Rosangela Locatelli; Salgado,Jordana Andrioli; Silva,Cláudio José Araújo da; Silva,Marina Gabriela Berchiol da; Beltrame,Olair Carlos; Pinto,Pedro Henrique Nicolau. |
| This study was designed to investigate the effect of early weaning and concentrate supplementation on performance and metabolic profile of lambs in four production systems on pasture: suckling lambs not supplemented until slaughter; suckling lambs supplemented with concentrate in creep feeding until slaughter; early weaned lambs not supplemented until slaughter; early weaned lambs supplemented with concentrate until slaughter. Performance was assessed by average daily gain (ADG) and body condition score (BCS) measurements. Metabolic profile was delineated by measuring serum albumin, urea, creatinine, cholesterol, glucose and aspartate aminotransferase. Weaning reduced ADG by 92 g/d and the ADG for weaned and suckling lambs were 113 g/d and 205 g/d,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Concentrate feed; Energy; Growth; Protein; Suckling. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500029 |
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| Silva,Cláudio José Araújo da; Fernandes,Sergio Rodrigo; Silva,Marina Gabriela Berchiol da; Monteiro,Alda Lúcia Gomes; Poli,César Henrique Espírito Candal; Prado,Odilei Rogerio; McMannus,Concepta; Gilaverte,Susana. |
| The influence of early weaning and concentrate supplementation strategies on sward characteristics, forage chemical composition and lamb productivity were evaluated in four production systems on Tifton-85 pasture: suckling lambs not supplemented until slaughter; suckling lambs supplemented with concentrate in creep feeding until slaughter; early-weaned lambs not supplemented until slaughter; and early-weaned lambs supplemented with concentrate until slaughter. Structural, morphological and productive characteristics of pasture were measured. The forage was chemically analyzed to estimate its composition. Lambs average daily gain and productivity were calculated. Sward height, forage and morphological components mass were lower in systems without weaning.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Creep feeding; Leaf:stem ratio; Productivity; Stocking rate. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000800428 |
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| Omidi, Shahryar; Mohit, Ardeshir; Hossein-Zadeh, Navid Ghavi. |
| An experiment was conducted to determine effects of different levels and sources of fats in diets on growth performance, carcass characteristics and immune response of turkeys during four periods (0-21, 22 to 42, 43 to 63 and 64 to 70 days of age). A completely randomized design with five treatments, six replicates and eight B.U.T.6 turkey chickens per replicate was used. Treatments included: Control diet, diet containing 2.5% of soybean oil, diet containing 2.5% fat supplement, diet containing 5% soybean oil, diet containing 5% fat supplement. The results showed that using 5% of soybean oil increased average daily gain of turkeys (89.04 g) throughout the experimental period (0-70 days) compared with the control group (81.11 g; p < 0.05). Treatments... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Carcass quality; Fat supplement; Feed intake; Immunity.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46775 |
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| Herrera,Pedro Zurita; Bermejo,Juan Vicente Delgado; Henríquez,Anastasio Argüello; Vallejo,María Esperanza Camacho; Costa,Roberto Germano. |
| The aim of this research was to study the effects of three different management systems on growth and carcass quality of 61 Murciano-Granadina breed kids and their interaction with sex. In the extensive system, 21 kids were allocated to suckle from their dams on free-range pasture with no additional feedstuff. In the semi-intensive system, 20 kids were suckled from their dams and had access to alfalfa hay and cereal straw (no free-range pasture). In the intensive system, 20 kids were separated from the dams at birth and then fed with milk replacer and alfalfa hay. Animals were slaughtered at 7.00 ± 1.00 kg of average BW. The semi-intensive system and extensive system kids grew faster than intensive system animals (127, 113 and 96 g/d, respectively).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Meat; Murciano-Granadina breedIntroduction. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100045 |
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| Bertipaglia,Tássia Souza; Carreño,Luis Orlando Duitama; Machado,Carlos Henrique Cavallini; Andrighetto,Cristiana; Fonseca,Ricardo da. |
| The objective of this study was to evaluate the association of visual scores of body structure, precocity and muscularity with production (body weight at 18 months and average daily gain) and reproductive (scrotal circumference) traits in Brahman cattle in order to determine the possible use of these scores as selection criteria to improve carcass quality. Covariance components were estimated by the restricted maximum likelihood method using an animal model that included contemporary group as fixed effect. A total of 1,116 observations of body structure, precocity and muscularity were used. Heritability was 0.39, 043 and 0.40 for body structure, precocity and muscularity, respectively. The genetic correlations were 0.79 between body structure and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Body weight at 18 months; Genetic correlation; Heritability; Scrotal circumference. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600013 |
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| Manuel,Matos; Cavani,Ligia; Millen,Danilo Domingues; Andrighetto,Cristiana; Lupatini,Gelci Carlos; Fonseca,Ricardo da. |
| ABSTRACT: Interest in improving feed efficiency of cattle has been increasing. The residual feed intake (RFI), the most commonly used measurement of feed efficiency, is expensive and can only be used in a small number of animals. The Kleiber Index has also been proposed to measure RFI. In this study, we estimated genetic parameters for the Kleiber Index average daily weight gain and adjusted weights to obtain a more comprehensive understanding of potential responses to selection and support the development of breeding strategies. Genetic analyses were conducted on animal records from a data file with 36,505 animals recorded by ABCZ (Brazilian Association of Zebu Breeders). Restricted maximum likelihood estimates of genetic parameters were computed with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic correlation; Average daily gain; Heritability; Standard age weight. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001600459 |
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| Aguiar, Luzyanne Varjão; Pedreira, Márcio dos Santos; Silva, Herymá Giovane Oliveira; Caires, Dirlane Novais; Silva, Abias Santos; Silva, Lázaro Costa da. |
| We evaluated the effect of inclusion of fine mesquite pod meal (FPM) in the diet on performance, preference and palatability of diets in feedlot lambs. Five diets were formulated with increasing levels of FPM (0, 1.5, 3.0, 4.5 and 6.0%). For performance evaluation, the design was completely randomized with five treatments and seven replications. For palatability and preference analysis, the same design was used, but the treatments consisted of diets with 0 and 3% FPM and fourteen replications. The palatability was assessed considering the amount of feed consumed within 30 min., and the preference, considering the feed intake after 24 hours. FPM had no influence on weight gain, but caused a reduction in intake and an increase in dry matter digestibility for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zootecnia additive; Food; Intake; Digestibility; Average daily gain; Sheep.. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/27804 |
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| Torres Filho,Rodolpho de Almeida; Torres,Robledo de Almeida; Lopes,Paulo Sávio; Pereira,Carmen Silva; Euclydes,Ricardo Frederico; Araújo,Cláudio Vieira de; Silva,Martinho de Almeida e. |
| The selection and evaluation of breeds and purebred lines to be used as the parental stock is an important step for the success of any animal breeding program. In this study, the feed:gain ratio, backfat thickness corrected for 100 kg, age to 100 kg, average daily gain, and age of sow at first farrowing were used to evaluate the genetic trends for direct and maternal additive genetic values in Large White pigs. The total number of piglets born or born alive and the litter weight at birth were used as indicators of the genetic trends for the direct additive values. The genetic trends were calculated by regression of the average predicted genetic values per year for each trait versus the offspring's year of birth (for performance traits) or versus the dam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Backfat thickness; Birth litter weight. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100017 |
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| Brambilla,Daniel Martins; Nabinger,Carlos; Kunrath,Taise Robinson; Carvalho,Paulo César de Faccio; Carassai,Igor Justin; Cadenazzi,Mónica. |
| The overseeding of ryegrass (Lolium multiflorum Lam) on sub-tropical native pastures increases the availability and quality of forage in the cold season. However, soil chemical amendment and nitrogen use can affect the floristic composition, with consequences to the primary and secondary production. In a randomized complete block design with three replications, the effect of nitrogen fertilization (40, 90 and 140 kg/ha of nitrogen) on native pasture overseeded with ryegrass in two consecutive years was assessed regarding production and composition of pasture and performance of beef calves. In both years, the forage accumulation rate and forage production responded linearly to the increase in nitrogen rates as a result of increased participation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Forage accumulation rate; Lolium multiflorum; Stocking rate. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300008 |
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| Bastos,Milena Patricia Viana; Carvalho,Gleidson Giordano Pinto de; Pires,Aureliano José Vieira; Silva,Robério Rodrigues da; Carvalho,Bruna Mara Aparecida de; Brandão,Kelly Couto; Maranhão,Camila Maida de Albuquerque. |
| The experiment was conducted to assess the effect of substituting corn for soybean hulls on the apparent digestibility of nutrients, carcass performance and characteristics, and yield of cuts of 25 non-castrated male Santa Ines lambs with an initial body weight of 20±2 kg, at approximately 6 months of age, sheltered individually in stalls (1.10 × 1.0 m), considering a totally randomized design, fed 600 g/kg of forage and 400 g/kg of concentrate. Soybean hulls replaced corn at 0, 250, 500, 750, and 1,000 g/kg of dry matter. The intake of dry matter (DM), organic matter (OM), neutral detergent fiber (NDF), acid detergent fiber (ADF), NDF corrected for ash and protein (NDFap), total carbohydrates (TC), non-fibrous carbohydrates (NFC) and total digestible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Intensive system; Meat production; Ovine. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000300083 |
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| Vieira Júnior,Luiz Carlos; Cabral,Luciano da Silva; Zervoudakis,Joanis Tilemahos; Abreu,Joadil Gonçalves de; Souza,Alexandre Lima de; Morenz,Mirton José Frota. |
| The ingestive behavior and performance of female lambs grazing on Marandu pasture submitted to different stocking rates during the rainy and transition season were evaluated. The experimental area with 4,500 m² was divided into 45 paddocks of 100 m². Twenty-seven Santa Ines female lambs (purebred) with 4 months age and 22 kg of initial body weight were distributed in a completely randomized design, with nine replicates. Lambs were divided into 9 groups with the same initial weight and submitted to three stocking rates: 2, 3 and 4 lambs/paddock, which corresponded to 40, 60 and 80 lambs/ha, respectively. Each group of animals had a module of five paddocks, managed on intermittent grazing system, with 7 days of occupation and 28 d of rest. Increase on time... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Gain per area; Grazing; Resting; Rumination; Sheep. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100011 |
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| Guimarães,Gilmara Santos; Silva,Fabiano Ferreira da; Silva,Luciano Lemos da; Galvão,Luísa Miranda Girardi; Santos,Lenon Machado dos; Alencar,Alfredo Machado. |
| Sheep farming is designated to economic exploitation, and dry matter intake is the most important factor that influences the performance of animal, thus seeking alternative foods. This study aimed to evaluate the effects of inclusion levels of cassava peel on intake, digestibility and performance of feedlot lambs. We used 32 crossbred lambs Santa Inês uncastrated, mean body weight of 21 ± 1.5 kg. Treatments were arranged in a randomized design to animals, with inclusion levels of cassava peel (0, 10, 20, 30%) in the diet dry matter and forage cassava leaf hay. During 70 days, there have been weighing the food provided, leftovers, and animals, and feces collection. The intake of dry matter (DMI), organic matter (OMI), crude protein (CPI), ether extract... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Nutrition; Sheep. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000300010 |
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| Polizel,Daniel Montanher; Marques,Samuel Sutil; Westphalen,Mariana Fontana; Gouvea,Vinícius Nunes; Ferraz Júnior,Marcos Vinícius de Castro; Miszura,Alexandre Arantes; Barroso,José Paulo Roman; Limede,Arnaldo Cintra; Ferreira,Evandro Maia; Pires,Alexandre Vaz. |
| ABSTRACT: Narasin is an antibacterial agent that may change rumen fermentation. Two experiments were proposed to evaluate the efficiency of narasin inclusion for lambs fed a diet containing high amounts of ground flint corn. Thirty rumen-cannulated wethers were used to evaluate nutrient digestibility, nitrogen balance, and rumen metabolism (Exp. 1); and forty-five lambs were used to evaluate performance (Exp. 2) of animals fed with narasin for high flint corn diets. The experimental diets were: control or basal diet without additives (C); 25 mg of monensin kg−1 of dry matter (DM) (M); and inclusion of 5 (N5), 10 (N10), and 15 (N15) mg of narasin kg−1 of DM. The statistical analyses were performed using the MIXED procedure of SAS. Monensin increased DM... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Feed efficiency; Propionate; Rumen metabolism; Sheep. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000600401 |
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| Ribeiro,Marinaldo Divino; Pereira,José Carlos; Queiroz,Augusto César de; Cecon,Paulo Roberto; Detmann,Edenio; Azevêdo,José Augusto Gomes. |
| The objective of this study was to evaluate the effect of the addition of acidifiers to milk, milk replacer or post-weaning concentrate on the performance and health status of weaning and post-weaning calves. Three experiments were carried out, in the first experiment 62 Holstein × Zebu crossbred calves (males and females), reared from birth to 60 days of age, were distributed and fed milk with or without acidifier. From the third day, the calves were suckled (5L of milk/d) for 56 days, split into two meals. The acidifier was added to milk at the time of feeding. From the second week of calf's age a starter diet (18% of CP) was also offer. In second experiment, the same animals from first experiment, but from 61 to 120 days of age were distributed and fed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Additive; Average daily gain; Nursing phase. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000500024 |
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| Registros recuperados: 26 | |
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