|
|
|
| Registros recuperados: 134 | |
|
| |
|
|
| Cobianchi,Juliana Variz; Oliveira,André Soares de; Campos,José Maurício de Souza; Guimarães,Amanda Vasconcelos; Valadares Filho,Sebastião de Campos; Cobianchi,Flávio Pereira; Oliveira,Thalita Evani Silva de. |
| The effect of replacing of 0; 0.33; 0.67 and 1.0 (kg/kg) of soybean meal (SBM) by undecorticated castor seed meal treated with calcium oxide (CMT - 60 g/kg) was evaluated on performance and efficiency of nutrient utilization in dairy cows. Sixteen Holstein and crossbred cows were distributed in four 4 × 4 latin squares. Animals received concentrated feed at a ratio of 1 kg for 3 kg of milk produced, in the natural matter. The diets had the same amount of nitrogen (150.4 g crude protein/kg DM), containing 325.6 g of concentrated feed/kg DM. There was no effect on the serum concentration of transaminase and the animals showed no clinical symptoms of intoxication by ricin. The intake of DM, crude protein (CP) and non-fibrous carbohydrates (NFC) reduced from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Intake; Milk production; Nitrogenous compounds; Ricin; Ricinus communis L.. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001000015 |
| |
|
| |
|
|
| Bianchi,Anderson Elias; Macedo,Vicente de Paulo; Silva,Aleksandro Schafer Da; Silveira,André Luís Finkler da; Hill,João Ari Gualberto; Zortéa,Talyta; Rossi,Robson Marcelo; Batista,Rafael. |
| ABSTRACT The objective of this study was to evaluate the effect of protected fat from palm oil on body weight and milk production and composition of lactating Lacaune ewes. Four treatments (0, 20, 40, and 60 g kg−1 as fed) of protected fat from palm oil were used to feed nine animals in each group. Isoproteic and isoenergetic diets were formulated and adjusted for each animal after milk weighing. Corn silage was used as roughage on the same proportion of concentrated to feed all animals. Milk samples were collected weekly for chemical analyses up to the seventh week of the lactation period and every other week after that until the end of the lactation period (182 days). Increased levels of protected fat in the diet of lactating ewes resulted in lower body... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chemical composition; Dairy sheep breed; Milk production. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100609 |
| |
|
|
| Castro,Filipe Alexandre Boscaro de; Ribeiro,Edson Luis de Azambuja; Mizubuti,Ivone Yurika; Silva,Leandro das Dores Ferreira da; Barbosa,Marco Aurélio Alves de Freitas; Sousa,Cícero Leandro de; Paiva,Fernando Henrique Pereira de; Koritiaki,Natália Albieri. |
| The objective of this study was to evaluate the influence of feeding energy levels during the last third of gestation and lactation on performance of ewes and lambs up to weaning. The experiment was carried out in the sheep raising sector of Universidade Estadual de Londrina (UEL), from August to December of 2007. Thirty-two adult lambs with 105 days of gestation, average live weight of 57.55 kg and average body condition scores of 3.42 were used in the beginning of the experiment. The animals were confined in collective pens, distributed randomly in three treatments: 2.4; 2.2 and 2.0 Mcal of metabolizable energy (ME)/kg of dry matter (DM). Feed supply was ad libitum during the last third of gestation and lactation. Weaning occurred at 70 days. Body... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body condition; Milk production; Mortality; Sheep; Weight gain. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400017 |
| |
|
|
| Freitas,Priscila Ribeiro Corradi; Coelho,Sandra Gesteira; Rabelo,Euler; Lana,Ângela Maria Quintão; Artunduaga,Maria Alexandra Torres; Saturnino,Helton Mattana. |
| Forty Holstein cows, with previous reproductive problems, empty, at second or more lactations, with an average milk production of 9,200 kg in the previous lactation and a dry period over than 50 days were distruibuted in two groups to evaluate two protocols of milking induction. It was given to group 1, on days one, eight and 21 recombinant bovine somatotropin-bSTr (500 mg); from day two to eight, estradiol cypionate (0.075 mg/kg BW) and medroxi progesterone acetate (0.25 mg/kg BW); from days nine to 15, estradiol cypionate (0.037 mg/kg BW); on day 19, prostaglandin F2α (0.530 mg) and from days 19 to 21, isoflupredone acetate (0.05 mg/kg BW). Group two was given, on days one, eight and 21, bSTr (500 mg), from days 2 to 15, estradiol benzoate (0.071 mg/kg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estradiol benzoate; Estradiol cypionate; Milk production; Somatotropin. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000024 |
| |
|
|
| Santos,Stefanie Alvarenga; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Valadares,Rilene Ferreira Diniz; Ruas,José Reinaldo Mendes; Prados,Laura Franco; Amaral,Paloma de Melo; Mariz,Lays Débora Silva. |
| The objective of this study was to evaluate intake, digestibility and nitrogen (N) compounds use efficiency in F1 Holstein × Zebu grazing cows. Eighteen crossbred cows (six Holstein × Gir, six Holstein × Guzerat, and six Holstein × Nellore) were used in the experiment, constituting three experimental treatments in simple random samples, under the same feeding conditions. At the estimation of individual intake at grazing, titanium dioxide was used for estimating fecal excretion and indigestible neutral detergent fiber, in order to determine pasture intake. There was effect of the lactation period on nutrient intake, except for the intakes of dry matter (DM), organic matter (OM) and total digestible nutrients (TDN) in % of body weight (BW), as well as those... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria decumbens; Crossbreeding; Milk production; Performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400027 |
| |
|
|
| Santana,Pedro Felipe; Rocha Júnior,Vicente Ribeiro; Ruas,José Reinaldo Mendes; Monção,Flávio Pinto; Borges,Luana Alcântara; Rigueira,João Paulo Sampaio; Ramos,Joyce Cipriana Pacheco; Gomes,Virgílio Mesquita. |
| ABSTRACT The objective of this study was to evaluate the effect of quantitative feed restriction level on nutrient intake and digestibility, nitrogen balance, efficiency and feeding behavior, and productive performance of F1 Holstein × Zebu cows in late lactation. Sixty F1 Holstein × Zebu cows were used at the stage of late lactation (183.0±17.5 days of lactation) and with initial body weight (BW) of 499±30 kg. The experimental arrangement adopted was the completely randomized design, with five feed restriction levels (3.39, 2.75, 2.50, 2.25, and 2.00% of BW) and twelve cows as replicates for each treatment. The roughage:concentrate ratio was of 75:25 in the total dry matter of the diet. The restriction of dietary supply from 3.39 to 2.0% of BW linearly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crossbred cows; Feed efficiency; Milk production; Nitrogen balance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100701 |
| |
|
|
| Aljumaah,Riyadh Saleh; Almutairi,Fares; Ayadi,Moez; Alshaikh,Mohammed Abdulrahman; Al-Haidary,Ahmed Abrahim; Samara,Emad Mohammed. |
| ABSTRACT Critical gaps exist in our understanding of the diagnostic reliability of subclinical mastitis tests in dromedary camels. Using a retrospective longitudinal cross-sectional approach, 191 lactating camels were randomly sampled from 47 camel herds to investigate at first the practicability of somatic cell count (SCC) and electrical conductivity (EC) tests as subclinical mastitis tests in camels through their validations by California mastitis test (CMT) score, and then through the subsequent employments of those objective means in assessing certain potential risk markers predisposing camels to this disease. Results indicate the reliability and validity of SCC test, in contrast to EC test, in distinguishing subclinical mastitic udders in camels, as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy; Milk production; Risk marker; Human consumption; Welfare. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000400402 |
| |
|
| |
|
|
| Botaro,Bruno Garcia; Gameiro,Augusto Hauber; Santos,Marcos Veiga dos. |
| Programs designed to enhance milk quality have been used to motivate dairy farmers to improve the quality of the raw milk they produce. The objective of this study was to evaluate the association between a milk quality payment program and four indicative variables of milk quality, by testing bulk tank somatic cell count (SCC), bulk tank total bacterial count (TBC), fat (FAT) and protein (PROT) percentages over three years in four dairy cooperatives in Southern Brazil. We used a multiple regression econometric model estimated from market data of milk delivered by farmers to the cooperatives. Bulk tank milk samples (n = 19,644) were monthly collected. The data set was analyzed for the effects of seasonality, average daily volume of milk, the award/penalty,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial count; Somatic cell count; Premium payment; Milk composition; Milk production. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000100004 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Molina Benavides,Raúl Andrés; Sánchez Guerrero,Hugo; Atzori,Alberto Stanislao. |
| Abstract Thermal environment is recognized to be one the most important ecological factor to determine domestic animal growth, development and productivity for direct and indirect effects on its physiology and behavior. Despite having specific and individual adaptation, is very common, within seasonal or diurnal temperature variations, animals deal with situations outside their thermal comfort zone. Due to heat stress, dairy cows reduce milk production and fertility, and therefore, had achieved an increasing in metabolic disorders incidence, causing low revenues to farm in short and medium periods. Due to world climate change more impact of the meteorological variables on animal responses is expected for the future. This study aimed to describe and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Grazing; Livestock production systems; Milk production; System dynamics; Temperature. |
| Ano: 2018 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100059 |
| |
|
| |
| Registros recuperados: 134 | |
|
|
|
