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	Provedor de dados AgEcon (2) Rev. Bras. Ciênc. Avic. (2) Autor Al-Dhabi,NA (1) Betancur,C (1) Carrión,Y (1) Chen,H (1) Duraipandiyan,V (1) Ge,S (1) HAO,E (1) Huang,R (1) Liu,G (1) Martínez,Y (1) Olmo,C (1) Rodríguez,R (1) Valdivié,M (1) Mais... Palavra-chave Pullet (4) Egg (2) Flock (2) Lay (2) Layer (2) Layers (2) Livestock Production/Industries (2) Molt (2) NAHMS (2) Poultry (2) Salmonella enteritidis (2) Table egg (2) Biosecurity (1) Blood parameter (1) Cage (1) Coccidiosis (1) Competitive exclusion (1) Contract farm (1) Disease (1) Disinfect (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Report (2) Ano 2019 (1) 2015 (1) 2000 (1) 1999 (1) País Brazil (2) United States (2) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers Rev. Bras. Ciênc. Avic. HAO,E; Chen,H; Ge,S; Huang,R. ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p<0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted... Tipo: Info:eu-repo/semantics/article Palavras-chave: Feed restriction; MELR; Ovary; Photoperiod; Pullet. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311 Growth Performance, Organ Weights and Some Blood Parameters of Replacement Laying Pullets Fed with Increasing Levels of Wheat Bran Rev. Bras. Ciênc. Avic. Martínez,Y; Carrión,Y; Rodríguez,R; Valdivié,M; Olmo,C; Betancur,C; Liu,G; Al-Dhabi,NA; Duraipandiyan,V. ABSTRACTThis study was conducted to determine the growth performance, organ weights, and selected blood parameters of replacement laying pullets (development phase) fed increasing levels of wheat bran (WB). A total of 240 70-d-old White Leghorn pullets (Hybrid L33) were evaluated for seven weeks. Birds were assigned to three dietary treatments according to a completely randomized design. Treatments consisted of diets containing 100 (T1), 150 (T2), or 200 g/kg (T3) of WB in partial replacement of corn, with 10 replicates per treatment of eight birds per replicate. Birds fed T2 presented higher body weight (p<0.05) compared with T1 and T3 (1112.52 to 1163.35 g). Also, T2 birds presented higher methionine plus cystine intake relative to T1 (0.38 to 0.40... Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth performance; Organ weight; Blood parameter; Pullet; Wheat bran. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000300347 LAYERS '99, PART I: REFERENCE OF 1999 TABLE EGG LAYER MANAGEMENT IN THE U.S. AgEcon The National Animal Health Monitoring System (NAHMS) is sponsored by the USDA:APHIS:Veterinary Services (VS). The NAHMS Layers '99 Study was designed to provide information about the nation's layer population for education and research purposes. The USDA's National Agricultural Statistics Service (NASS) collaborated with VS to select a statistically-valid sample from 15 states for Layers '99. The 15-state target population accounted for over three-quarters of the table egg layers in the U.S. as of December 1, 1998. The study was limited to companies with 30,000 or more layers. While the majority of farm sites were contract farms (61.0 percent), the majority of birds were located on company owned farms (72.6 percent), indicating that company owned farms... Tipo: Report Palavras-chave: NAHMS; Layer; Layers; Poultry; Pullet; Flock; Egg; Table egg; Lay; Molt; Cage; Contract farm; Coccidiosis; Newcastle disease; Infectious bronchitis; Salmonella enteritidis; S.e.; Competitive exclusion; Laryngotracheitis; LT; Mycoplasma gallisep; Livestock Production/Industries. Ano: 1999 URL: http://purl.umn.edu/32757 LAYERS '99, PART II: REFERENCE OF 1999 TABLE EGG LAYER MANAGEMENT IN THE U.S. AgEcon The National Animal Health Monitoring System (NAHMS) is sponsored by the USDA:APHIS:Veterinary Services (VS). The NAHMS Layers '99 Study was designed to provide information about the nation's layer population for education and research purposes. The USDA's National Agricultural Statistics Service (NASS) collaborated with VS to select a statistically-valid sample from 15 states for Layers '99. The 15-state target population accounted for over three-quarters of the table egg layers in the U.S. as of December 1, 1998. The study was limited to companies with 30,000 or more layer. About two-thirds (68.1 percent ) of farm sites did not allow visitors that did not have a business reason for visiting the operation in the layer houses. The percentage of farm sites... Tipo: Report Palavras-chave: NAHMS; Layer; Layers; Layer house; Poultry; Pullet; Flock; Egg; Table egg; Lay; Biosecurity; Feeder; Visitor; Morbidity; Disease; Disinfect; Salmonella enteritidis; S.E.; Management; Molt; Production; Livestock Production/Industries. Ano: 2000 URL: http://purl.umn.edu/32765 Registros recuperados: 4 Primeira ... 1 ... Última

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