SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Lôbo,Ana Maria Bezerra Oliveira; Lôbo,Raimundo Nonato Braga; Paiva,Samuel Rezende.

We determined the polymorphism C242T of the aromatase gene (Cyp19) and its allelic frequency, as well as the effect of the variants on productive and reproductive traits in 71 purebred Santa Inês sheep, 13 purebred Brazilian Somali sheep, nine purebred Poll Dorset sheep, and 18 crossbred 1/2 Dorper sheep. The animals were genotyped using the PCR-RFLP technique. The influence of the animal's genotype on its performance or on the performance of its lambs was analyzed by the least square method. Another factor assessed was the importance of the animal's genotype in analysis models for quantitative breeding value estimates, and whether there were differences among the averages of breeding values of animals with different genotypes for this gene. In the sample...

The influence of animals from embryo transfer on the genetic evaluation of growth in Simmental beef cattle by using multi-trait models

Palavras-chave: Body weight; Lambing interval; PCR-RFLP; Polymorphism; SNP; Litter weight.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000300010

Mota,Rodrigo Reis; Lopes,Paulo Sávio; Marques,Luiz Fernando Aarão; Silva,Luciano Pinheiro da; Resende,Marcos Deon Vilela de; Torres,Robledo de Almeida.

The weight records from Simmental beef cattle were used in a genetic evaluation of growth with or without the inclusion of animals obtained by embryo transfer. A multi-trait model in which embryo transfer individuals were excluded (MTM1) contained 29,510 records from 10,659 animals, while another model without exclusion of these animals (MTM2) contained 62,895 weight records from 23,160 animals. The weight records were adjusted for ages of 100, 205, 365, 450, 550 and 730 days. The (co)variance components and genetic parameters were estimated by the restricted maximum likelihood method. The (co)variance components were similar in both models, except for maternal permanent environment variance. Direct heritabilities (h²d) in MTM1 were 0.04, 0.11, 0.20, 0.27,...

Genetic analyses of days to calving and their relationships with other traits in a Canchim cattle herd

Palavras-chave: Body weight; (co)variance components; Heritability.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000100007

Mucari,Talita Buttarello; Alencar,Maurício Mello de; Barbosa,Pedro Franklin; Barbosa,Rogério Taveira.

Heritabilities and genetic correlations in a Canchim beef cattle herd were estimated using data on the following traits: male scrotal circumference at twelve months (SC12); days to first calving (DFC) for heifers; days to calving (DC) for cows; male and female weight (W) at twelve months (W12); heifer weight at the start of the first breeding season (WFBS) and at first calving (WFC); and cow weight at the start of the breeding season (WBS) and at calving (WC). Analyses of the DFC and DC traits were carried out excluding and including penalized (DFC P and DC P) non-calving females. The restricted maximum likelihood method was used, applying one-trait models for the DFC and DC analyses and two-trait models for analyses of DFC and DC combined with the other...

Genome-wide association study for birth, weaning and yearling weight in Colombian Brahman cattle

Palavras-chave: Beef cattle; Body weight; Days to calving; Days to first calving; Genetic correlation; Heritability; Scrotal circumference.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600007

Martínez,Rodrigo; Bejarano,Diego; Gómez,Yolanda; Dasoneville,Romain; Jiménez,Ariel; Even,Gael; Sölkner,Johann; Mészáros,Gabor.

Abstract Genotypic and phenotypic data of 1,562 animals were analyzed to find genomic regions that potentially influence the birth weight (BW), weaning weight at seven months of age (WW) and yearling weight (YW) of Colombian Brahman cattle, with genotyping conducted using Illumina Bead chip array with 74,669 SNPs. A Single Step Genomic BLUP (ssGBLP), approach was used to estimate the proportion of variance explained by each marker. Multiple regions scattered across the genome were found to influence weights at different ages, also dependent on the trait component (direct or maternal). The most interesting regions were connected to previously identified QTLs and genes, such as ADAMTSL3, CAPN2, CAPN2, FABP6, ZEB2 influencing growth and weight traits. The...

Genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population

Palavras-chave: Bos indicus; SNP; QTL; GWAS; Body weight.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000300453

Lôbo,Ana Maria Bezerra Oliveira; Lôbo,Raimundo Nonato Braga; Paiva,Samuel Rezende; Oliveira,Sônia Maria Pinheiro de; Facó,Olivardo.

The genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population were estimated by applying the Average Information Restricted Maximum Likelihood method to an animal model. Data from a flock supported by the Programa de Melhoramento Genético de Caprinos e Ovinos de Corte (GENECOC) were used. The traits studied included birth weight (BW), weaning weight (WW), slaughter weight (SW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain from weaning to slaughter (GWS), weight gain from weaning to yearling (GWY), age at first lambing (AFL), lambing interval (LI), gestation length (GL), lambing date (LD - number of days between the start of breeding season and lambing), litter weight at birth (LWB)...

Estimation of body weight of European sea bass (Dicentrarchus labrax) and Nile tilapia (Oreochromis niloticus) larvae by image analysis

Palavras-chave: Age at first lambing; Genetic correlation; Heritability; Body weight; Litter weight.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000400016

ArchiMer

De Verdal, Hugues; Vandeputte, Marc; Pepey, Elodie; Vidal, Marie-odile; Ouedraogo, C; Canonne, Marc; D'Cotta, Helena; Baroiller, Jean Francois; Baras, E; Chatain, Beatrice.

The present study aimed to develop nondestructive methods to accurately follow the growth of fish larvae and post-larvae. European sea bass (Dicentrarchus labrax) aged 71-100 days post fertilization (dpf; 20-419 mg) and Nile tilapia (Oreochromis niloticus) aged 14 dpf (10-25 mg) were used as model species. Several measurements were performed on digital pictures of larvae to model body weight. Using body surface area, contour, length and depth, it was possible to estimate accurately the body weight of young European sea bass and Nile tilapia (r² of 0.98 and 0.95, respectively).

Tipo: Text

Palavras-chave: Image analysis; Body weight; Surface area; European sea bass; Nile tilapia.

Ano: 2014

URL: http://archimer.ifremer.fr/doc/00205/31619/30045.pdf

Zooplankton production in the Mediterranean Sea

ArchiMer

Greze, V.

An attempt is made to calculate the specific production of major zooplankton groups using a physiological method proposed by Winberg. The present report is based on material obtained from 50 stations in the Aegean and Adriatic Seas; Tunisian Strait and Algerian-Provencal basin. The algorithm of Zharov, used by the author, includes the data biomass, abundance, relation between metabolism at given temperature and organism, dependence of production upon metabolism, and the food utilization coefficient for growth.

Tipo: Text

Palavras-chave: MED; Body weight; Biomass; Growth; Food conversion; Temperature effects; Animal metabolism; Secondary production; Zooplankton.

Ano: 1984

URL: http://archimer.ifremer.fr/doc/1984/acte-1513.pdf

Individual growth monitoring of European sea bass larvae by image analysis and microsatellite genotyping

ArchiMer

De Verdal, Hugues; Vandeputte, Marc; Pepey, Elodie; Vidal, Marie-odile; Chatain, Beatrice.

The aims of the present study were to develop non-lethal methods to identify individual fish larvae and post-larvae before tagging and accurately follow their growth characteristics. European sea bass (Dicentrarchus labrax) was used as a model species at four different ages ranging from 71 to 100 days post fertilization (dpf). Two different methods were tested for non-lethal tissue sampling from each larva for DNA analysis: 1) using a sterile absorbent paper to sample mucus and/or epithelial cells by rubbing the fish skin and 2) fin-clip of the bottom part of the caudal fin. Whatever the age of the larvae, the genotyping rate (at 12 microsatellite markers) was low with the use of sterile absorbent paper but relatively high with fin-clip sampling at 80 and...

Tipo: Text

Palavras-chave: Individual identification; Image analysis; Body weight; Surface area; Perimeter; European sea bass larvae.

Ano: 2014

URL: http://archimer.ifremer.fr/doc/00211/32195/30748.pdf

Secular Trends in Body Dimensions among Young Tennis Players from 1992 to 2008

Morphostructural Characteristics of Three Varieties of Greybreasted Helmeted Guinea Fowl in Nigeria

Filipcic,Ales; Leskosek,Bojan; Sarabon,Nejc; Filipcic,Tjasa.

Several studies have examined both physical characteristics and fitness of children and youth. The aim of the study was first, to find the tendency of changes in selected morphological characteristics of young male and female tennis players of various ages in the periods 1992-2000-2008; and second, to find the changes in selected variables of young tennis players and to compare them with the results of boys and girls of same age from normal school population. Sample of variables included body height, body weight and body mass index (BMI). Multivariate analysis of variance revealed statistically significant differences in all main factors (group, age, gender and period) and additionally in interactions group*period, group*gender and age*gender. Univariate...

Tipo: Journal article

Palavras-chave: Young tennis players; Body weight; Body height; BMI; Secular trends.

Ano: 2012

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400047

Effects of Dietary Garlic (Allium sativum Linn.) Supplementation on Body Weight and Gut Morphometry of Commercial Broilers

Fajemilehin,S. O. K.

Three hundred eggs were obtained from settlements around New Bussa, Niger state during the month of August 2006 and transported to Ekiti state by road. 93.33 % of the three hundred (300) eggs collected were selected for hatching. The eggs were hatched at the aviary unitof Ekiti state Agricultural Development Project, Ikole Ekiti, Nigeria. At hatching the keets were separated on the basis of their plumage colours as shown by the distinct difference in the colour of the downy feathers of the keets into three genotypes, pearl, ash and black. The keets of each genotype were randomly allocated to brooder rooms where they were floor brooded using kerosene stove. The keets were fed with diet containing 24% CP, 3000 kcal/kg ME and water ad libitum for the first 8...

Tipo: Journal article

Palavras-chave: Aviary; Keets; Downy feather; Body weight; Linear measurement.

Ano: 2010

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000200036

Development of the Morphostructure and Meat Value in Chilota Lambs

Oladele,O. A; Emikpe,B. O; Bakare,H.

The effect of garlic on the absorptive surface of the small intestine of broilers was investigated towards elucidating its mechanism of growth promotion. One hundred day-old Arbor acre broilers were reared in 4 separate groups of twenty-five each. Broiler diet was supplemented with graded doses of garlic meal viz: 0% - group A; 0.125% - group B; 0.25% - group C; 0.5% - group D. Feed conversion ratio (FCR) was determined at 6 week-old. At 8 week-old, five broilers/group were selected randomly, euthanized and sections of the jejunum were harvested for histological examination. Villi lengths, widths and cryptal depths were determined. Mean body weight at 8 weeks old was highest in group B (1930 ± 41g) and least in group A (1850 ± 92g). FCR was highest in...

Tipo: Journal article

Palavras-chave: Body weight; Broilers; Garlic; Gut morphometry.

Ano: 2012

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100042

Physical Characteristics at Different Ages

de la Barra,R; Martínez,M. E; Calderón,C; Morales,R; de la Fuente,L. F.

Chilota sheep are typical of the Chiloé archipelago in southern Chile. The objectives of this study were: 1) To describe the development of the morphostructure of Chilota lambs in their first months of life using some variables that determine lamb meat value (zoometric traits and body weight) and 2) To determine the optimum slaughter age. Measurements were taken from 12 male single-born lambs. Body weight, Withers height; Perimeter of thorax, Chest depth, Shoulder point width and Body length were measured in each animal. The first measurements were taken at 7 days old, and the rest at 37, 67, 97, 127, 157 and 187 days old. The body weight variables and zoometric traits developed allometrically throughout the growth phase. The correlation coefficient...

Tipo: Journal article

Palavras-chave: Sheep; Postnatal development; Morphology; Body weight.

Ano: 2012

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400044