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| Registros recuperados: 56 | |
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| Oliveira,Dimas Estrasulas de; Silva,Sila Carneiro da. |
| Knowledge of information relative to the digestibility, intake and botanical and morphological composition of the diet is important in nutritional studies, since it provides the basis for understanding aspects related to the ingestive behavior and selectivity of animals. N-alkanes have been used successfully as markers in studies with many species of animals, particularly domesticated ruminants, most of the times as replacements for conventional markers as chromium oxide for example. However, for wild ruminants and non-ruminant animals information on this technique is still scarce and, as a consequence, its potential for use unknown. This review reports the use of this technique in studies of feed digestibility, intake and diet composition with wild... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Diet composition; Feed intake; Forages; Hydrocarbons. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000600015 |
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| Rodrigues, Eliana Aparecida; Instituto Federal do Triangulo Mineiro; Oliveira, Maria Cristina de; Universidade de Rio Verde; Cancherini, Luciana Cardoso; Universidade do Estado de Mato Grosso; Duarte, Karina Ferreira; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Santana, Luis Fernando; Instituto Federal do Triangulo Mineiro; Junqueira, Otto Mack; Universidade Estadual Paulista “Júlio de Mesquita Filho. |
| The experiment evaluated the effect of different calcium (Ca) levels in pre-laying and laying diets on the performance and egg quality of laying hens. Two hundred and fifty-six 16-week-old Brown Hisex pullets were housed in a conventional shed. The experiment had a completely randomized design with 4 x 2 factorial arrangement (four calcium levels - 0.8, 1.3, 1.8 and 2.3% in pre-laying phase; two calcium levels - 2.5 and 3.5% in laying phase), totaling eight treatments with four repetitions of eight birds per experimental unit. The experiment started with 16-week-old hens receiving pre-laying diets provided until they were 18 weeks old. At this period, the laying diets started. Four 28-day cycles were evaluated for the following variables: production and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2 e 5.04.03.00-1 egg mass; Egg production; Eggshell quality; Feed intake; Pullets egg mass; Egg production; Eggshell quality; Feed intake; Pullets. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16555 |
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| Farias,Nadja Naiara Pereira; Freitas,Ednardo Rodrigues; Xavier,Regina Patrícia de Souza; Braz,Nádia de Melo; Souza,Davyd Herik; Tavares,Thais Cruz Lopes. |
| ABSTRACT The objective of this study was to evaluate the oxidative stability of cashew nut meal (CNM) at 180 days of storage and the effects of its use in the feed of meat quails. A total of 280 animals at seven days of age, of both sexes, were distributed in a completely randomized design with five treatments, in a 2 × 2 + 1 factorial arrangement, and seven replicates of eight birds each. The treatments were a control diet without CNM and diets containing levels of 12.5 or 25% of new CNM (NCNM) or stored for 180 days (SCNM). The lipid oxidation of the brans was evaluated by determining the acidity index and peroxide index. The parameters evaluated were the quail performance, metabolizable coefficients and energy of diets, carcass characteristics, relative... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass characteristics; Feed intake; Feed conversion; Metabolizable energy; Quail; Weight gain. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000700576 |
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| Pinto, Adriana; Passetti, Rodrigo Augusto Cortêz; Guerrero, Ana; Rivaroli, Dayane Cristina; Perotto, Daniel; Prado, Ivanor Nunes do. |
| This study was performed to assess the animal performance of 97 bulls, ½ Purunã vs. ½ Canchim, that were slaughtered at 16 (16M) or 22 (22M) months with three concentrate levels (0.8, 1.2, and 1.6%) of body weight (BW). The initial body weight was lower for the 16M bulls. The final body weight and hot carcass weights were similar between the two slaughter ages. The hot carcass dressing was higher for 22M bulls. The average daily gain was higher for 16M bulls. The feed intake and dry matter feed conversion were similar between 16 and 22M bulls. The carcass length, marbling, and bone percentage were lower for 16M bulls. However, the Longissimus dorsi muscle area was higher for 16M bulls. The leg length, cushion thickness, fat thickness, conformation, colour,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zootecnia; Produção animal; Qualidade de carne bovine; Feed intake; Crossbreeding; Longissimus.. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/25116 |
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| Fugita,Carlos Alberto; Prado,Ivanor Nunes do; Jobim,Clóves Cabreira; Zawadzki,Fernando; Valero,Maribel Velandia; Pires,Maria Carla de Oliveira; Prado,Rodolpho Martin do; Françozo,Mônica Chaves. |
| Two height cuttings of corn silage with or without enzyme inoculants were evaluated for 68 days on performance, carcass characteristics, meat quality and chemical composition of the Longissimus muscle in crossbred bulls (F1 - ½ Nellore vs. ½ Angus) finished in feedlot. Thirty-two 20-month-old bulls, with initial average weight of 374±25 kg, were kept in individual pens (10 m²). Diets consisted of 50% roughage and 50% concentrate, with an expected 1.80 kg/day weight gain. The experimental design with four diets and eight replications was completely randomized. Different cutting heights, low (25 cm) and high (45 cm), with or without enzyme inoculants, were studied. Live weight, average daily gain, feed intake, feed efficiency, carcass characteristics,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed efficiency; Feed intake; Finishing system; Forage conservation; Human health; Meat quality. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100023 |
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| Avellaneda,Y; Ariza-Nieto,C; Afanador-Téllez,G. |
| ABSTRACT A total of 320 13-weeks-old pullets were weighed and randomly allocated to treatments comprised by four levels of crude glycerin (0, 3, 6 or 9%) and two levels of ME (metabolizable energy, difference of 100 kcal/kg) in the diets growing (14 to 17 weeks of age), pre-lay and pre-peak (low: 2750, 2800 and 2750 kcal/kg and high: 2850, 2900 and 2850 kcal/kg, respectively). During the study, body weight was registered until 30 weeks of age, feed intake, egg weight and egg-production for each repetition and for individual hens were measured every week. The information was analyzed through a completely randomized design with a 4x2 factorial arrangement. During the growing phase, hens that received low energy diets consumed more feed (p<0.05), gained... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed intake; Feed conversion; Transitional diets; Egg production. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000200317 |
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| Li,Feng; Yang,Yi; Yang,Xue; Shan,Mingxu; Gao,Xiang; Zhang,Yuanyuan; Hu,Jingwei; Shan,Anshan. |
| ABSTRACT The objective of this study was to evaluate the effects of maternal dietary intake on the amino acid and fatty acid contents in eggs during the laying period. An experiment with a 2×2 factorial design was conducted with two maternal dietary intake levels (100 and 75% of dietary intake recommended by the Chinese Ministry of Agriculture) and two broiler lines (fat and lean line). A total of 384 hens of fat line and 384 hens of lean line at 23 weeks of age were included in the experiment. Each line was randomly divided into two treatments (n = 192 in each treatment, with 12 replications), and each replication included 16 birds. The treatments were LN (lean line and normal maternal dietary intake, n = 192), LL (lean line and low maternal dietary... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg albumen; Egg yolk; Fat line; Feed intake; Lean line. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100520 |
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| Marçal,Danilo Alves; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Bonin,Marina de Nadai; Corassa,Anderson; Alencar,Stephan Alexander da Silva; Abreu,Rodrigo Caetano de; Silva,Jéssica Lira da. |
| ABSTRACT This experiment was conducted to evaluate the growth performance and carcass characteristics of gilts from 25 to 100 kg body weight (BW) fed diets with increased net energy (NE) levels. Seventy-two gilts with initial BW of 23.24±2.47 kg were allotted to one of six dietary treatments (2300, 2380, 2460, 2540, 2620, and 2700 kcal NE kg−1) using a completely randomized block design, with two pigs per replicate, and six replicates per treatment. Corn-soybean meal-based diets were formulated to be fed in three phases (25 to 50, 50 to 70, and 70 to 100 kg BW). Soybean oil was added to replace the inert ingredient kaolin to meet the NE level of each diet. Increasing dietary NE decreased the average daily feed intake (ADFI) and improved the feed:gain ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy:protein ratio; Feed intake; Nutrition; Pig nutrition; Swine. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100539 |
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| Marçal,Danilo Alves; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Bonin,Marina de Nadai; Corassa,Anderson; Alencar,Stephan Alexander da Silva; Santos,Alexandre Pereira dos; Rodrigues,Gabriela Puhl. |
| ABSTRACT This experiment was conducted to evaluate growth performance and carcass characteristics of barrows from 25 to 100 kg fed diets with different dietary net energy (NE) levels. Seventy-two barrows with initial body weight (BW) of 25.19±2.13 kg were allotted using a completely randomized block design to one of six dietary NE treatments (2300, 2380, 2460, 2540, 2620, and 2700 kcal kg−1), which had two pigs per replicate and six replicates per treatment. Diets were formulated to be fed in three phases (25 to 60, 60 to 70, and 70 to 100 kg BW). The six different dietary NE densities were met by adding soybean oil in place of the inert ingredient (kaolin) to a corn-soybean meal-based diet. Increasing dietary NE decreased average daily feed intake and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass quality; Fat; Feed intake; Swine; Vegetable oil. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100540 |
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| Severo, Teófilo Izidio de Morais; Holanda, Marco Aurélio Carneiro de; Holanda, Mônica Calixto Ribeiro de; Lucena, Leandro Ricardo Rodrigues de; Dutra Junior, Wilson Moreira. |
| The experiment was carried out to evaluate the productive performance of European quails (Coturnix coturnix) in the production phase, fed with diets containing different levels of digestible lysine. A total of 175 female quails, aged 65 days, were randomly distributed in a completely randomized design with five treatments and five replicates per treatment. The animals were housed in 25 metal cages, and each cage represented an experimental parcel, with seven birds per parcel. The birds were fed the experimental rations containing 1.177, 1.217, 1.317, 1.417, and 1.517% digestible lysine. The parameters evaluated were: laying rate, mass of eggs produced, feed intake in the period, lysine intake, feed conversion per dozen and per mass. Significant differences... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed intake; Nutrition; Amino acids.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46070 |
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| Vigne,Gabriela Letícia Delai; Neumann,Mikael; Santos,Leslei Caroline; Dochwat,André; Venancio,Bruno José; Heker Junior,Julio Cezar; Ueno,Robson Kyoshi; Souza,André Martins de. |
| ABSTRACT The objective of this study was to evaluate the production performance and carcass traits of feedlot steers fed a high-energy diet supplemented with doses of an enzyme complex (0, 2.5, 5.0, and, 7.5 g animal−1 day−1). Thirty-two ½ Angus ½ Nellore crossbred steers at an average age of 12 months and an average initial weight of 422 kg, were kept in a feedlot for 77 days. The roughage-free diet was composed of a mixture of whole corn grain and a protein-mineral-vitamin mix at a constant ratio of 85:15, on a dry matter basis. A completely randomized block design was adopted, consisting of four treatments and four replicates, in which each replicate was represented by a stall with two animals. Each gram of product added to the diet led to a decrease of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cellulase; Digestibility; Feed intake; Non-carcass component; Ultrasonography. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100612 |
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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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| Assuena,V; Junqueira,OM; Duarte,KF; Laurentiz,AC; Filardi,RS; Sgavioli,S. |
| This experiment was carried out to evaluate the effects of the inclusion of different levels of phytase on broiler performance, bone densitometry, and phosphorus and nitrogen excretion. Nine hundred and sixty one-day old broilers, 50% males and 50% females, were distributed in a completely randomized experimental design into five treatments and six replicates 32 birds each. The treatments consisted of a control diet and four diets with the addition 25, 50, 75, and 100 g/ ton of phytase (250, 500, 750 and 1000 FTU of phytase/kg fed). Diets were formulated to contain equal nutritional levels, and considered the phytase product nutritional levels. In general, the addition of phytase resulted in a linear decrease in broiler performance. However, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone mineralization; Feed conversion ratio; Feed intake; Weight gain. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100005 |
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| Teixeira, Paulo Sergio dos Santos; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Wechsler, Francisco Stefano; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Moura, Ana Silvia Alves Meira Tavares; Universidade Estadual Paulista “Júlio de Mesquita Filho”. |
| The objective was to evaluate the effect of nutritional density and season on the performance of young rabbit does before the first mating. Forty-eight females from the Botucatu Genetic Group were used in each season (warm or cool), starting at the age of 70 days, housed in groups of four per cage up to 119 days, and reared individually from 120 to 140 days of age. The high-density diet was formulated to contain, on a 90% DM basis, 18.4% CP, 16.5% ADF and 2,500 kcal DE kg-1; whereas the low-density diet was formulated to contain 14.7% CP, 24% ADF and 2,000 kcal DE kg-1. The experiment was conducted according to a 2x2 factorial design (two diets x two seasons) with repeated measures (weeks). The high-density diet promoted lower feed intake, higher final... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.03.00-1 acid detergent fiber; Feed efficiency; Feed intake; Growth; Live weight; Nutrition acid detergent fiber; Feed efficiency; Feed intake; Growth; Live weight; Nutrition. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/19101 |
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| Veras,Galileu Crovatto; Murgas,Luis David Solis; Rosa,Priscila Vieira; Zangeronimo,Márcio Gilberto; Ferreira,Matheus Soares da Silva; Leon,Jonathan Antonio Solis-De. |
| The objective of this study was to evaluate the effect of photoperiod on locomotor activity, growth and gonadal development in Nile tilapia (Oreochromis niloticus) fingerlings. A completely randomised design was used, with five treatments (0L:24D, 6L:18D, 12L:12D, 18L:6D and 24L:0D) and four replicates, with the aquarium as the experimental unit. One hundred and sixty fingerlings of tilapia weighing 3.21±0.05 g and measuring 4.35±0.07 cm each were distributed among 20 aquaria of 20 L in a recirculation system with the temperature controlled to 27 °C, with eight fish per aquarium. Feeding was carried out twice daily for 75 days, with extruded feed containing 40% crude protein. The fingerlings subjected to a photoperiod of 12L:12D as well as those under... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed intake; Fish; Locomotor rhythm; Oreochromis niloticus; Performance; Sexual maturation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200002 |
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| Rigueira,Leandro César Milagres; Thomaz,Maria Cristina; Rigueira,Dalton César Milagres; Pascoal,Leonardo Augusto Fonseca; Amorim,Alessandro Borges; Budiño,Fábio Enrique Lemos. |
| The objective of this study was to evaluate the effect of diets supplemented with plasma and/or yeast extract on performance (daily weight gain [DWG], daily feed intake [DFI] and feed conversion [FC]) and intestinal morphology of piglets from 7 to 63 days of age. A total of 288 piglets aged 7 days and weighing 2.57±0.05 kg were studied. A randomized block design consisting of four experimental diets, six repetitions and 12 piglets per experimental unit was adopted. The pre-starter I (7 to 21 days), pre-starter II (22 to 35 days) and starter I (36 to 49 days) diets were supplemented as follows: control diet (CD): no plasma or yeast extract; plasma (PL) diet: addition of 6%, 4% and 2% plasma; yeast extract (YE) diet: addition of 6%, 4% and 2% yeast extract;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed conversion; Feed intake; Swine; Villi; Weight gain. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000700006 |
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| Registros recuperados: 56 | |
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