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Registros recuperados: 39
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A importância do desmame dos cordeiros e cabritos. Infoteca-e
BELLAVER, C.; SELAIVE, A..
A importância do leite materno após três meses de idade; Como desmamar; O efeito do desmame sobe a produtividade.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Ovino; Cordeiro; Caprino; Cabrito; Desmama; Manejo; Sheep; Weaning; Kids (goats); Lambs..
Ano: 1980 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514302
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A survey of dairy calf management practices in some producing regions in Brazil R. Bras. Zootec.
Santos,Glauber dos; Bittar,Carla Maris Machado.
ABSTRACTThis study aimed to characterize the Brazilian dairy calves raising systems through a survey of major aspects of animal husbandry. One hundred seventy-nine producers and/or technicians were interviewed. The questionnaire addressed issues related to the management of the dry cow and the newborn, nutritional management of the liquid-feeding phase, housing, and health management. A third of newborn calves stay with their mothers for more than 24 h after delivery, and only 56% of the calves receive colostrum within the first 8 h of life. Four out of ten producers allow the calf to suckle colostrum directly from the mother. Regarding the liquid diet, 44 and 35% of the farms provide marketable milk and discard milk for the calves, respectively. It was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Colostrum; Raising system; Transfer of passive immunity; Weaning.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001000361
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Age at weaning and the endocrine response to stress Arq. Bras. Med. Vet. Zootec.
Bueno,A.R.; Rasby,R.; Clemens,E.T..
Seventy-five Angus x MARC II crossbred heifers were used to assess the effects of age at weaning on calf performance and blood constituents. Calves were weaned at 150, 210, or 270 days of age with comparisons made to their non-weaned counterparts. Changes in blood chemistry and hematology (cortisol, glucose, T3, total proteins, packed cell volume and the differential white blood cell count) were recorded on the day of weaning (day-0), and at 2, 7, 14, and 28 days post-weaning. Calves weaned at 210 days of age presented the highest plasma cortisol, glucose, and total protein concentrations during their early post-weaning period. Calves weaned at 150 days of age had significantly lower plasma T3 values. Packed cell volume and differential white blood cell...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cattle; Weaning; Stress; Blood constituents.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000100001
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BEEF '97, PART I: REFERENCE OF 1997 BEEF COW-CALF MANAGEMENT PRACTICES AgEcon
Dargatz, David.
The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding 2,713 producers from 23 states. The 23-state target population represented 85.7 percent of U.S. beef cows on January 1, 1997, and 77.6 percent of U.S. beef operations. NASS enumerators collected data for this report via a questionnaire administered on-farm from December 30, 1996, through February 3, 1997. Contact for this paper: David Dargatz
Tipo: Report Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Labor; Identification; Weaning; Marketing; Breeding; Calving; Livestock Production/Industries.
Ano: 1997 URL: http://purl.umn.edu/32742
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BEEF '97, PART III: REFERENCE OF 1997 BEEF COW-CALF PRODUCTION MANAGEMENT AND DISEASE CONTROL AgEcon
Dargatz, David.
The NAHMS Beef '97 Study was designed to provide both participants and the industry with information on the nation's cow-calf population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically-valid sample yielding 2,713 producers from 23 states. The 23-state target population represented 85.7 percent of U.S. beef cows on January 1, 1997, and 77.6 percent of U.S. beef operations. Federal and state Veterinary Medical Officers (VMO's) and Animal Health Technicians (AHT's) collected data for this report on-farm from March 3, 1996, through May 23, 1997, from 1,190 operations that had five or more beef cows on January 1, 1997. Contact For This Paper: David Dargatz
Tipo: Report Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Breeding; SPA; Price impact; Environment; Weaning; Economics; Disease; Johne's; Marketing; Livestock Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/32744
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BEEF, '97, PART IV: CHANGES IN THE U.S. BEEF COW-CALF INDUSTRY, 1993-1997 AgEcon
Dargatz, David.
Section 1 of this report shows demographic changes of the U.S. beef cow-calf industry from a historical perspective from data provided by the National Agricultural Statistics Service (NASS) and Census of Agriculture. Results of two NAHMS national studies in Section II complete the overview of change in the U.S. beef cow-calf industry during the 5-year period from 1993 to 1997. NAHMS, CHAPA Phase I included data collected from 2,539 cow-calf operations in the 48 continental states via telephone during the fall of 1992. Subsequent data collection was done on operations in 18 states and from producers with five or more beef cows and 50 percent or more of their calf crop born between January 1 and June 30 (spring calving) The 18 states represented 70...
Tipo: Report Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Demographics; Identification; Economics; Marketing; Weaning; Morbidity; Mortality; Nutrition; Livestock Production/Industries.
Ano: 1998 URL: http://purl.umn.edu/32755
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Behavior of dairy heifers after increasing the amounts of milk replacer powder added to whole milk PAB
Rufino,Sâmara Raiany de Almeida; Azevedo,Rafael Alves de; Furini,Pamela Michéli; Campos,Mariana Magalhães; Machado,Fernanda Samarini; Pires,Maria de Fátima Avila; Lima,Juliana Aparecida Mello; Coelho,Sandra Gesteira.
Abstract: The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stress; Vocalization; Weaning.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000104310
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Body size and its effects on productive efficiency of cows with predominant Nellore genetic composition Animal Sciences
Farias, Gustavo Duarte; Cerdótes, Liliane; Restle, João; Pascoal, Leonir Luiz; Costa, Pablo Tavares; Ferreira, Otoniel Geter Lauz; Vaz, Ricardo Zambarda.
 This study was developed to evaluate productive efficiency during the lactation period of cows with predominant Nellore genetic composition based on their body size. Cows were divided into the following categories: light (≤ 316 kg), moderate (≥ 317 and ≤ 400 kg), or heavy (≥ 401 kg). Body weight change and total gain from birth to 210 days of age of calves born from heavy cows (0.155±0.03 and 111.6±5.1 kg) were higher than those of calves born from light (0.064±0.03 and 91.0±4.3 kg) and moderate (0.144±0.03 and 97.7±4.0 kg) cows. Calf production index differed (p < 0.05) with the herd of heavy cows (93.5±3.2 kg), producing 57.4 and 19.7% more kilograms of calf than light (59.4±2.7 kg) and moderate (78.1±2.4 kg) cows, respectively. Heavy Nellore cows...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Weaning; Calf production; Lactation; Production per area..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42532
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CHAPA, BEEF COW/CALF HEALTH AND PRODUCTIVITY AUDIT, PART I: BEEF COW/CALF HERD MANAGEMENT PRACTICES IN THE UNITED STATES AgEcon
Dargatz, David.
As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. Data for Part 1: Beef Cow/Calf Herd Management Practices in the United States, were collected from beef producers September 29 through October 9, 1992. The National Agricultural Statistics Service (NASS) collaborated with VS to select a statistically designed producer sample that represented all U.S. cow/calf operations in the 48 continental United States. Eighty-one percent of operations had commercial cattle...
Tipo: Report Palavras-chave: NAHMS; Epidemiology; Beef cattle; Calves breeding; Artificial insemination; Mortality; Branding; Injections; Castration; Weaning; Livestock Production/Industries.
Ano: 1993 URL: http://purl.umn.edu/32740
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CHAPA, BEEF COW/CALF HEALTH AND PRODUCTIVITY AUDIT, PART II: BEEF COW/CALF REPRODUCTIVE AND NUTRITIONAL MANAGEMENT PRACTICES AgEcon
Dargatz, David.
As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. Data for Part II: Nutritional & Reproductive Management Practices, were collected by the National Agricultural Statistics Service (NASS) from beef producers in 18 of the largest cow/calf producing states from November 9 through December 4, 1992. These 18 states represented 70 percent of the U.S. beef cow inventory. Participating producers had five or more beef cows or beef replacement heifers and fifty percent...
Tipo: Report Palavras-chave: NAHMS; Epidemiology; Beef cattle; Calving; Replacement heifers; Economics; Culling; Disease; Weaning; Identification; Marketing; Supplements; Implants; Nutrition; Parasites; Livestock Production/Industries.
Ano: 1994 URL: http://purl.umn.edu/32766
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CHAPA, BEEF COW/CALF HEALTH AND PRODUCTIVITY AUDIT, PART V: QUALITY ASSURANCE PROFILE AgEcon
Dargatz, David.
As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. The National Agricultural Statistics Service (NASS) collaborated with USDA:APHIS:VS to select a producer sample that was statistically designed to provide inferences about the nation's cow/calf population. Data for Part V: Quality Assurance Profile were collected by federal and state veterinary officers (VMO's) in 18 of the largest cow/calf producing states between January 1 and January 31, 1994. The average...
Tipo: Report Palavras-chave: NAHMS; Epidemiology; Beef cattle; Calves; Weaning; Value; Economics; Disease; Scours; Calf crop; Mortality; Calving problems; Parasites; Livestock Production/Industries.
Ano: 1994 URL: http://purl.umn.edu/32767
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Comparison of growth and exploratory behavior in mice fed an exclusively milk formula diet and mice fed a food-pellet diet post weaning OAK
Ishii, Toshiaki; Ito, Takuya; Nishimura, Masakazu; 石井, 利明.
An exclusively milk formula diet stunted the growth of mice immediately following weaning. Milk-fed mice displayed a low-frequency profile of exploratory behavior, while pellet-fed mice showed high-frequency exploration. In contrast to exploratory behavior, feeding behavior did not differ significantly between milk- and pellet-fed mice. Despite showing low-frequency exploratory behavior, mice on an exclusively milk formula diet showed no difference in behavioral activities analyzed by an automatic hole-board apparatus compared to pellet-fed mice. These results suggest that the growth stunt caused by an exclusively milk formula diet retards the acquisition of active exploratory behavior without affecting the emotional state of mice.
Palavras-chave: Feeding; Exploratory behavior; Growth; Weaning; Milk formula.
Ano: 2005 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/741
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Comportamento ingestivo de cordeiros em três sistemas de produção em pastagem de Tifton 85 - DOI: 10.4025/actascianimsci.v31i3.6014 Animal Sciences
Poli, César Henrique Espírito Candal; UFRGS; Lúcia Monteiro, Alda Gomes; UFPR; Barros, Carina Simionato de; UFPR; Dittrich, João Ricardo; UFPR; Fernandes, Sergio Rodrigo; UFPR; Carvalho, Paulo César de Faccio; UFRGS.
O objetivo deste estudo foi avaliar o comportamento ingestivo de cordeiros em pastagem de Tifton-85 (Cynodon spp.) em três sistemas de produção: cordeiros desmamados aos 60 dias de idade e mantidos em pastagem; cordeiros mantidos com suas mães em pastagem; e cordeiros mantidos com suas mães em pastagem e suplementados em creep feeding. O delineamento foi em blocos ao acaso com três repetições, utilizando quatro cordeiros-teste por repetição. Na pastagem, avaliou-se a altura, a massa, a composição morfológica e bromatológica da forragem. Na avaliação do comportamento ingestivo registrou-se, do nascer ao pôr do sol, o tempo despendido nas atividades de pastejo, ruminação, ócio, amamentação e alimentação no creep feeding. Avaliou-se, também, a taxa de bocados...
Palavras-chave: Creep feeding; Desmame; Pastejo; Ruminação; Taxa de bocado; Cynodon spp 5.04.05.01-2 creep feeding; Weaning; Grazing; Rumination; Bite rate; Cynodon spp.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6014
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DAIRY '96, PART I: REFERENCE OF 1996 DAIRY MANAGEMENT PRACTICES AgEcon
Ott, Stephen L..
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers. Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996. NASS interviewers collected data for Part I via a questionnaire administered on-farm from January 1 through 26, 1996. Contact for this paper: Steven Ott
Tipo: Report Palavras-chave: NAHMS; Dairy; Cattle; Milk; Feed; Weaning; Culls; Health; Vaccination; Morbidity; Mortality; Births; Housing; Biosecurity; Livestock Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/32758
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DAIRY '96, PART II: CHANGES IN THE U.S. DAIRY INDUSTRY: 1991-1996 AgEcon
Ott, Stephen L..
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research. This report contains demographic changes of the U.S. and world dairy industry from a historical perspective from data provided by the National Agricultural Statistics Service (NASS), Census of Agriculture, and Foreign Agriculture Service. Results of two NAHMS national studies overview changes in the U.S. dairy industry in the 5-year period of 1991 to 1996. The 1991 National Dairy Heifer Evaluation Project included herds of 30 or more milk cows and heifer-rearing operations in 28 states representing 83 percent of U.S. milk cows. NAHMS Dairy '96 described dairy production for operations...
Tipo: Report Palavras-chave: NAHMS; Dairy; Cattle; Demographics; Breed; Rolling herd average; Milk; Feed; Weaning; Vaccination; Morbidity; Mortality; Housing; Biosecurity; Livestock Production/Industries.
Ano: 1996 URL: http://purl.umn.edu/32741
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Dietary fiber and zinc additives on performance and intestinal health of Escherichia coli challenged piglets Scientia Agricola
Fernandes,Carolina Dias; Resende,Maíra; Rodrigues,Letícia Mendonça; Garbossa,Cesar Augusto Pospissil; Costa,Leandro Batista; Ferreira,Rony Antônio; Abreu,Márvio Lobão Teixeira de; Cantarelli,Vinícius Souza.
ABSTRACT This study aimed to evaluate the effects of zinc oxide and a low level of encapsulated zinc oxide, with or without dietary fiber, on the performance and intestinal health of weaned piglets. A total of 112 piglets were used, divided into four treatment groups: basal diet with zinc oxide (ZnO); basal diet with zinc oxide and dietary fiber (ZnO+DF); basal diet with encapsulated low zinc oxide (LZnOE); and basal diet with LZnOE and DF (LZnOE+DF). Piglets were challenged with E . coli K88 + , weighed weekly and the fecal score was evaluated daily. One pig per pen was slaughtered to evaluate the production of volatile fatty acids, intestinal microbial populations, intestinal morphology, and digestibility. The encapsulated zinc resulted in lower body...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrition; Diarrhoea; Jejunum; Swine; Weaning.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000200403
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Dose única de zinco como fator moderador do estresse metabólico na desmama de bovinos de corte. Infoteca-e
MORAES, S da S.; THIAGO, L. R. L. de S.; MACEDO, M. C. M.; TORRES JUNIOR, R. A. de A..
Nos registros de fazendas de gado de corte, é notório que as maiores perdas no rebanho ocorrem no terço inicial da vida do animal. Este fato possivelmente está associado com o manejo de matrizes em pastos de baixo valor nutricional, que somado a uma suplementação mineral inadequada, predispõem os bezerros a uma deficiência subclínica de zinco (Zn). O resultado é que os bezerros produzidos nessa situação normalmente são fracos e portadores de distúrbios nutricionais que, além de influenciar os demais estados mórbidos, os tornam mais susceptíveis a doenças resultantes de um estresse prolongado. O estresse acelera o consumo de Zn e a principal conseqüência da alteração metabólica é a falta de apetite e depressão da resposta imune aos agentes agressores. A...
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Bovino de corte; Estresse.; Bezerro; Desmama; Stress; Zinco.; Calves; Beef cattle; Zinc.; Weaning.
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325572
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Early weaning impairs body composition in male mice BJPS
Borges,Maria Carolina; Rogero,Marcelo Macedo; Pires,Ivanir Santana de Oliveira; Borelli,Primavera; Tirapegui,Julio.
This study aimed to evaluate the effect of early weaning on body composition and on parameters related to nutritional status in mice. The experimental group consisted of male Swiss Webster mice that were weaned early (at postnatal day fourteen) and fed an appropriate diet for growing rodents until postnatal day twenty-one (EW group). The control group consisted of male mice breastfed until postnatal day twenty-one (CON group). All animals were sacrificed on the twenty-first day of life. The EW group showed a decrease in liver and muscle protein content and concentration, brain protein concentration, brain DNA content and concentration, as well as liver and muscle protein/RNA ratio (p<0.05). Concerning body composition, the EW mice showed increased...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Weaning; Body composition; Breastfeeding; Nutritional status.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400026
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Evaluation of growth performance and gastro-intestinal parameters on the response of weaned piglets to dietary organic acids Anais da ABC (AABC)
GRECCO,HENRIQUE A.T.; AMORIM,ALESSANDRO B.; SALEH,MAYRA A.D.; TSE,MARCOS L.P.; TELLES,FILIPE G.; MIASSI,GABRIELA M.; PIMENTA,GUILHERME M.; BERTO,DIRLEI A..
ABSTRACT Two experiments (E) were carried out to evaluate the effects of fumaric acid and an acidifier blend [composed by calcium formate, calcium lactate and medium-chain fatty acids (capric and caprylic)] in piglet diets containing colistin (40 ppm) or halquinol (120 ppm) on performance, diarrhea incidence (E1), organs relative weight, pH values, intestinal morphometry and microbiota (E2). In E1, 192 and E2, 24 piglets weaned at 21-day-old were randomly assigned to blocks with 2x2 factorial arrangement of treatments [absence or presence of fumaric acid x absence or presence of acidifier blend], six replicates of eight (E1) and one piglet per pen (E2). For E1, the treatments were control (CD): no acidifier product + 40 ppm of colistin, FA: fumaric acid in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acidifiers; Diarrhea; Nutrition; Pig; Weaning.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100401
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Evaporative cooling for lactating sows under high ambient temperature R. Bras. Zootec.
Kiefer,Charles; Martins,Leandro Pereira; Fantini,Caiki Calepso.
Two experiments were conducted to evaluate the evaporative cooling of the air at farrowing on the performance of lactating sows under high environmental temperature conditions in the Central West region of Brazil. One hundred and forty-four lactating sows - 46 of first and second farrowing (experiment I) and 98 from the third to eighth farrowing (experiment II) - were used. Sows were distributed in experimental design of randomized blocks consisting of two rooms (with air cooling and control), with the sow as the experimental unit. The average duration of lactation was 21 days. Sows were fed ad libitum with the same lactation diet. In experiment I, the air cooling increased the daily feed intake, reduced the total and percent weight loss, increased the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environment; Feed intake; Milk production; Piglets; Weaning.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500015
Registros recuperados: 39
Primeira ... 12 ... Última
 

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