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| Registros recuperados: 15 | |
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| Riley,David G.; Gill,Clare A.; Herring,Andy D.; Riggs,Penny K.; Sawyer,Jason E.; Sanders,James O.. |
| Gestation length, birth weight, and weaning weight of F2 Nelore-Angus calves (n = 737) with designed extensive full-sibling and half-sibling relatedness were evaluated for association with 34,957 SNP markers. In analyses of birth weight, random relatedness was modeled three ways: 1) none, 2) random animal, pedigree-based relationship matrix, or 3) random animal, genomic relationship matrix. Detected birth weight-SNP associations were 1,200, 735, and 31 for those parameterizations respectively; each additional model refinement removed associations that apparently were a result of the built-in stratification by relatedness. Subsequent analyses of gestation length and weaning weight modeled genomic relatedness; there were 40 and 26 trait-marker associations... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birth weight; Gestation length; Weaning weight; Nelore; Whole genome association. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000400007 |
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| Souza,L.P.; Fries,H.C.C.; Heim,G.; Faccin,J.E.; Hernig,L.F.; Marimon,B.T.; Bernardi,M.L.; Bortolozzo,F.P.; Wentz,I.. |
| The aim of the study was to evaluate the behaviour, pre-weaning survival rate and growth performance of low birth weight (BW) piglets cross-fostered with piglets of higher weights. Piglets were transferred to 60 foster sows, and divided in three groups (G; n=20): G1- 12 low BW piglets (0.80 - 1.25kg); G2- six low BW piglets and six intermediate BW piglets (1.40 - 1.60kg), and G3- six low BW piglets and six high BW piglets (>1.70kg). For the analysis, groups G2 and G3 were subdivided in LG2 (six G2 light piglets); IG2 (six G2 intermediate piglets), LG3 (six G3 light piglets), and HG3 (six G3 heavy piglets). Behavioural observations were carried out on days 1, 2, 4 and 6 (visual direct observation) and on days 3 and 5 (video recording) after birth. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piglet; Cross-fostering; Behaviour; Birth weight. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200027 |
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| Mezzadra,Carlos Alberto; Melucci,Lilia Magdalena; Corva,Pablo Marcelo; López Valiente,Sebastián; Rípoli,María Verónica; Lirón,Pedro; Giovambattista,Guillermo. |
| The influence of cytoplasmic inheritance on birth and weaning weight was evaluated in an experimental Hereford herd. Data on 1,720 records for birth and weaning weights from calves born between 1963 and 2002 were studied. Variance components were estimated using MTDFREML procedures and an animal model was fitted for each trait. Direct and maternal additive effects and permanent environment and maternal lineage effects were treated as random, while year and month of birth, age of dam and sex of the calf were treated as fixed. Identification of maternal lineages was based on pedigree information. The contribution to phenotypic variance of cytoplasmic lineages defined by pedigree information was negligible for both traits. Mitochondrial genotypes of cows... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Hereford; Birth weight; Weaning weight; Cytoplasmic inheritance; SSCP. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300003 |
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| Magnabosco,Diogo; Bierhals,Thomas; Ribeiro,Renato Rosa; Cemin,Henrique Scherer; Faccin,Jamil Elias Ghiggi; Bernardi,Mari Lourdes; Wentz,Ivo; Bortolozzo,Fernando Pandolfo. |
| Lysine requirements for gain in maternal body reserves and piglet birth weight, during pregnancy, in contemporary prolific genotypes, are not well established. This study aimed to evaluate the effect of dietary lysine in late pregnancy on piglet birth weight, and on the gestational and lactational performance of gilts. Pregnant gilts were uniformly distributed into two groups and received, from 85 to 110 days of gestation, either of two lysine levels in their diet: Control group - 28g lysine/day (n=136), and Lysine group - 35g lysine/day (n=141). There were no effects (P>0.10) of supplemental lysine on body weight and backfat (BF) gain of females or on piglet birth weight. Gilts supplemented with lysine tended to have a lower percentage of stillbirths... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lysine; Pregnancy; Piglets; Birth weight. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000800020 |
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| Hernández Luna, María Elena. |
| Se analizaron los pesos al nacimiento (PN) de cabritos Boer, Nubios y sus cruzas manejados bajo condiciones de confinamiento en el Altiplano Potosino, con el propósito de evaluar la influencia de genotipo de la cría [Boer puros (B), Nubios puros (N), ½ B x ½ N (BN), ¾ B x ¼ N (¾ B), y ⅞ B x ⅛ N (⅞ B)], tipo de nacimiento (sencillo, doble y triple+), sexo (macho, hembra), número de parto (1, 2, 3, 4+) y época de nacimiento (1-8) en el PN. Se efectuó un análisis de varianza en donde todos estos factores se definieron como efectos fijos. Todos los factores influyeron (p<0.01) en la variación del PN, cuya media general fue 3.0±0.7 kg. Los PN de cabritos ¾ B (3.1 kg), BN (3.0 kg), B (2.9 kg) y N (2.9 kg) fueron iguales (p>0.05), pero superiores a... |
| Tipo: Tesis |
Palavras-chave: Cabritos; Cruzas; Peso al nacimiento; Factores ambientales; Maestría; Ganadería; Goat kids; Crosses; Birth weight; Environmental factors. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1233 |
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| Hernández Luna, María Elena. |
| Se analizaron los pesos al nacimiento (PN) de cabritos Boer, Nubios y sus cruzas manejados bajo condiciones de confinamiento en el Altiplano Potosino, con el propósito de evaluar la influencia de genotipo de la cría [Boer puros (B), Nubios puros (N), ½ B x ½ N (BN), ¾ B x ¼ N (¾ B), y ⅞ B x ⅛ N (⅞ B)], tipo de nacimiento (sencillo, doble y triple+), sexo (macho, hembra), número de parto (1, 2, 3, 4+) y época de nacimiento (1-8) en el PN. Se efectuó un análisis de varianza en donde todos estos factores se definieron como efectos fijos. Todos los factores influyeron (p<0.01) en la variación del PN, cuya media general fue 3.0±0.7 kg. Los PN de cabritos ¾ B (3.1 kg), BN (3.0 kg), B (2.9 kg) y N (2.9 kg) fueron iguales (p>0.05), pero superiores a... |
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Palavras-chave: Cabritos; Cruzas; Peso al nacimiento; Factores ambientales Goat kids; Crosses; Birth weight; Environmental factors. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/922 |
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| Hernández Luna, María Elena. |
| Se analizaron los pesos al nacimiento (PN) de cabritos Boer, Nubios y sus cruzas manejados bajo condiciones de confinamiento en el Altiplano Potosino, con el propósito de evaluar la influencia de genotipo de la cría [Boer puros (B), Nubios puros (N), ½ B x ½ N (BN), ¾ B x ¼ N (¾ B), y ⅞ B x ⅛ N (⅞ B)], tipo de nacimiento (sencillo, doble y triple+), sexo (macho, hembra), número de parto (1, 2, 3, 4+) y época de nacimiento (1-8) en el PN. Se efectuó un análisis de varianza en donde todos estos factores se definieron como efectos fijos. Todos los factores influyeron (p<0.01) en la variación del PN, cuya media general fue 3.0±0.7 kg. Los PN de cabritos ¾ B (3.1 kg), BN (3.0 kg), B (2.9 kg) y N (2.9 kg) fueron iguales (p>0.05), pero superiores a... |
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Palavras-chave: Cabritos; Cruzas; Peso al nacimiento; Factores ambientales Goat kids; Crosses; Birth weight; Environmental factors. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/895 |
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| Registros recuperados: 15 | |
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