Genetic associations of reproductive traits in pigs

2018 ◽  
Vol 56 (2) ◽  
pp. 265-275
Author(s):  
MONIKA KUMALSKA ◽  
ARKADIUSZ TERMAN
Keyword(s):  
Reproductive Traits ◽  
Genetic Associations

Estimated genetic associations among reproductive traits in Nellore cattle using Bayesian analysis

2020 ◽  
Vol 214 ◽  
pp. 106305 ◽  
Author(s):  
Edson V. Costa ◽  
Henrique T. Ventura ◽  
Renata Veroneze ◽  
Fabyano F. Silva ◽  
Mariana A. Pereira ◽  
...  
Keyword(s):  
Bayesian Analysis ◽  
Reproductive Traits ◽  
Genetic Associations ◽  
Nellore Cattle

scholarly journals ASSOCIAÇÕES GENÉTICAS ENTRE O PERÍMETRO ESCROTAL E AS CARACTERÍSTICAS PRODUTIVAS E REPRODUTIVAS EMREBANHO NELORE CRIADO NA REGIÃO NORTE DO TOCANTINS Genetic associations between scrotal circumference and productive and reproductive traits in herd Nellore raised in northern Tocantins State, Brazil

2012 ◽  
Vol 10 (3) ◽  
pp. 253 ◽  
Author(s):  
Leandro Lopes Nepomuceno ◽  
Ricardo José De Andrade ◽  
Fernando Brito Lopes ◽  
Thaymisson Santos de Lira ◽  
Laryany Farias Vieira ◽  
...  
Keyword(s):  
Reproductive Traits ◽  
Genetic Associations ◽  
Scrotal Circumference ◽  
De Se

Objetivou-se estimar as (co)variâncias, os parâmetros e correlações genéticas entre o perímetro escrotal(PE), e o peso aos 365 dias de idade (P365), o peso aos 550 dias (P550), a idade ao primeiro parto(IPP) e o intervalo entre partos (IDP) de um rebanho da raça Nelore na região norte do Tocantins. Operíodo de coleta de dados foi entre os anos de 1991 e 2011, com registros de PE de 5.724 machos,dados de 1.364 e 3.481 fêmeas de IPP e IDP, respectivamente, e 6.210 e 5.290 registros de P365 e P550.As estimativas dos coeficientes de herdabilidade e correlações genéticas entre as características PE eP365, PE e P550 foram altas, demonstrando elevada variabilidade do rebanho, sugerindo a possibilidadede seleção com ganhos significativos em gerações futuras. As herdabilidade de IPP e IDP foram debaixa magnitude, sugerindo dificuldades no processo seletivo. A correlação entre PE e IPP foi de moderadaà baixa magnitude, indicando baixa associação entre as características, e fazendo-se necessáriorever a intensidade de seleção para as características reprodutivas. A característica PE mostrou-se bomindicador ou critério de seleção para características produtivas (P365 e P550), não sendo indicada paracaracterísticas reprodutivas. Há necessidade de se intensificar a seleção para caractéristicas reprodutivasno rebanho em estudo.

Genetic associations between reproductive traits for first calving and growth curve characteristics of Japanese Black cattle

2020 ◽  
Vol 91 (1) ◽  
Author(s):  
Keiichi Inoue ◽  
Masahiko Hosono ◽  
Hidemi Oyama ◽  
Hiroyuki Hirooka
Keyword(s):  
Growth Curve ◽  
Reproductive Traits ◽  
Genetic Associations ◽  
Japanese Black Cattle

Genetic associations between scrotal circumference and female reproductive traits in Nelore cattle1

2015 ◽  
Vol 93 (6) ◽  
pp. 2706-2713 ◽  
Author(s):  
A. P. N. Terakado ◽  
A. A. Boligon ◽  
F. Baldi ◽  
J. A. II V. Silva ◽  
L. G. Albuquerque
Keyword(s):  
Reproductive Traits ◽  
Genetic Associations ◽  
Scrotal Circumference ◽  
Female Reproductive Traits

Planting time and mulching influenced vegetative and reproductive traits in strawberry (Fragaria×ananassaDuch.) in India

Fruits ◽  
2005 ◽  
Vol 60 (6) ◽  
pp. 395-403 ◽  
Author(s):  
Rajbir Singh ◽  
Ram Roshan Sharma ◽  
Rajiv Kumar Jain
Keyword(s):  
Reproductive Traits ◽  
Planting Time

Erweiterung der Library of Genetic Associations – Update 2009

2009 ◽  
Vol 47 (01) ◽  
Author(s):  
M Krupp ◽  
T Maass ◽  
S Buchkremer ◽  
A Weinmann ◽  
F Thieringer ◽  
...  
Keyword(s):  
Genetic Associations

The improvement of the type Karatomar of Black-and-White cattle breed under the conditions of Northern Kazakhstan

2020 ◽  
pp. 23-31
Author(s):  
L. Ovchinnikova ◽  
E. Babich
Keyword(s):  
Research Work ◽  
Cattle Breed ◽  
Reproductive Traits ◽  
Farm Animals ◽  
Development Indicators ◽  
Black And White ◽  
Breed Type ◽  
Northern Kazakhstan ◽  
White Breed ◽  
White Cattle

In the Republic of Kazakhstan over the past decade positive changes have been observed in increasing the number of farm animals, increasing their productivity, and increasing the gross production of milk, meat and other products. At the same time the development of dairy cattle breeding is mainly due to the breeding of Black-and-White, Red Steppe, Simmental breeds and their intra-breed types as well as imported from abroad Holstein breed. The purpose of the research was to analyze ways to improve the intra-breed type Karatomar of Black-and-White breed in Northern Kazakhstan. Research work has been carried out on breeding animals such as Karatomar type cattle of Black-and-White breed in LLP “Experimental farm Zarechnoe” in the Kostanay district in the Kostanay region. The dynamics of growth and development indicators, reproductive traits of heifers of a new intra-breed type Karatomar of Black-and-White cattle have been studied. A comprehensive assessment of their economically useful traits in the first lactation, determined by the resistance of animals to climatic and forage conditions, the efficiency of breeding of animals of different genotypes has been conducted. It has been found that the replacement heifers – daughters of American breeding sires inherited precocity and showed higher growth energy after 6 months of age and continued to grow rapidly until 18 months. The advantage in metabolism was in the daughters of Holstein sires of the American selection Orbit 4078, and the increased immune status of the organism in the daughters of the sire of the domestic selection Yamal 975 as the most adapted to the conditions of Northern Kazakhstan. The best ability to increasing the milk yield, stable lactation activity, high milk productivity, gross content of dry matter and nonfat milk solids have been characterized by the daughters of sires of the American selection Orbit 4078 and Lowrider 4129. Analysis of economic indicators of milk production has been shown that from cows – daughters of sires Orbit 4078 and Lowrider 4129 for 305 days of lactation received 15,8 and 15,2 % more milk of base fat, the expenditures of EFU per 1 kg of production was lower by 10,2 and 5,9 %. A higher level of profitability has been observed in the group of daughters of the sires Orbit 4078 – 35,5 % and Lowrider 4129 – 33,1 %, which was 8,5 and 10,8 % higher than in the group of daughters of the sire Yamal 975.

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