1985
DOI: 10.2527/jas1985.60189x
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Estimates of Genetic Correlations between Testicular Measurements and Female Reproductive Traits in Cattle

Abstract: Data from 528 male and 645 female progeny of 63 sires were used to estimate genetic correlations between female and male reproductive traits. Data were from two Hereford herds involved in a long-term selection program of the North Carolina Agricultural Experiment Service. Testicular measurements of circumference, diameter, length and volume were obtained on bulls at 205 and 365 d. Testicular growth measures were defined as differences between 205-and 365-d measurements. Heifers were placed in the breeding herd… Show more

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Cited by 133 publications
(86 citation statements)
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References 23 publications
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“…descritos na literatura mundial (Toelle & Robison, 1985;Martins Filho & Lôbo, 1991;Martin et al, 1992;Gressler et al, 1998;Pereira et al, 1998;Dias et al, 2000;Pereira et al, 2000a).…”
Section: Característicaunclassified
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“…descritos na literatura mundial (Toelle & Robison, 1985;Martins Filho & Lôbo, 1991;Martin et al, 1992;Gressler et al, 1998;Pereira et al, 1998;Dias et al, 2000;Pereira et al, 2000a).…”
Section: Característicaunclassified
“…Vários são os trabalhos que citam estimativas de correlação genética negativas entre perímetro escrotal e características reprodutivas das fêmeas (Toelle & Robison, 1985;Martins Filho & Lôbo, 1991;Meyer et al, 1991;Martin et al, 1992;Morris et al, 1992;Morris & Cullen, 1994;Gressler et al, 1998;Pereira et al, 1998;Dias et al, 2000;Pereira et al, 2000a). A correlação negativa, neste caso, implica associação favorável entre as características.…”
Section: Introductionunclassified
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“…Toelle y Robinson (1985) obtuvieron correlaciones genéticas favorables con la tasa de preñez y con edad al primer parto en hembras de ganado de carne.…”
Section: Volumen Testicular (Vt)unclassified
“…In a previous experiment with mice (Islam et (Cunningham et al, 1979;Johnson and Neal, 1988 (Land et al, 1980;Haley et al, 1989). Other workers have found some evidence of a correlation between testis size and litter size or ovulation rate in sheep (Ricordeau et al, 1979(Ricordeau et al, , 1986Purvis et al, 1988), cattle (Toelle and Robison, 1985a) and pigs (Schinckel et al, 1983;Toelle and Robison, 1985b;see Haley et al (1989) for review). Selection for litter size in mice led to correlated changes in testis weight, even after adjustment for body weight (Eisen and Johnson, 1981).…”
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confidence: 99%