Direct and correlated responses to long-term selection for increased body weight and egg production in turkeys

被引:84
作者
Nestor, KE [1 ]
Noble, DO [1 ]
Zhu, J [1 ]
Moritsu, Y [1 ]
机构
[1] RAKUNO GAKUEN UNIV,HOKKAIDO COLL ARTS & SCI,DEPT DAIRY SCI,LAB ANIM BREEDING,EBETSU,HOKKAIDO 069,JAPAN
关键词
body weight; egg production; selection responses; correlated responses; turkey;
D O I
10.3382/ps.0751180
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Lines of turkeys were selected long-term for increased egg production (E line; 34 generations) or increased 16-wk BW (F line; 28 generations). The E and F lines were started from randombred control populations (RBC1 and RBC2, respectively) that were also maintained to remove environmental variation among generations. Realized heritabilities (h(2)) +/- SE in the E line, based on regressions of response on cumulated actual selection differentials (selection differentials weighted for the number of offspring produced), for 180-d and 250-d egg production were 0.34 +/- 0.02 (17 generations) and 0.26 +/- 0.13 (8 generations), respectively. The realized h(2) of 16-wk BW in the F line was 0.26 +/- 0.01. There was no consistent evidence of selection response reaching a plateau in either line. The genetic association of BW and egg production changed with selection in the E and F lines. The genetic correlation varied from near zero to strongly negative and fluctuated between these extremes in both lines even though they started from different base populations and selection criteria differed. Other correlated responses to selection for increased egg production were increased average clutch length (intensity of lay), and decreased broodiness (total days lost), egg weight, shell coloration, and rate of response to stimulatory lighting. Other correlated responses to selection for increased 16-wk BW in the F line included: increased egg weight (due to increased albumen), longer eating bouts, and decreased average clutch length, semen production, walking ability, and resistance to Pasteurella multocida and Newcastle disease virus, Selection within the E and F lines also changed the frequency of MHC haplotypes and the changes appeared to be in opposite directions in the two lines.
引用
收藏
页码:1180 / 1191
页数:12
相关论文
共 54 条
[1]   REPRODUCTIVE-PERFORMANCE OF INBRED CONGENIC LEGHORNS CARRYING DIFFERENT HAPLOTYPES FOR THE MAJOR HISTOCOMPATIBILITY COMPLEX [J].
ABPLANALP, H ;
SATO, K ;
NAPOLITANO, D ;
REID, J .
POULTRY SCIENCE, 1992, 71 (01) :9-17
[2]  
ABPLANALP H., 1963, British Poultry Science, V4, P71, DOI 10.1080/00071666308415483
[3]   PATTERN OF GROWTH AND PLASMA GROWTH-HORMONE SECRETION IN TURKEYS SELECTED FOR INCREASED EGG-PRODUCTION [J].
ANTHONY, NB ;
VASILATOSYOUNKEN, R ;
EMMERSON, DA ;
NESTOR, KE ;
BACON, WL .
POULTRY SCIENCE, 1990, 69 (12) :2057-2063
[4]   LINEAR ESTIMATES OF HERITABILITY AND GENETIC CORRELATION FOR EGG-PRODUCTION, BODY-WEIGHT, CONFORMATION AND EGG WEIGHT OF TURKEYS [J].
ARTHUR, JA ;
ABPLANALP, H .
POULTRY SCIENCE, 1975, 54 (01) :11-23
[5]  
ASMUNDSON V. S., 1935, POULTRY SCI, V14, P259, DOI 10.3382/ps.0140259
[7]   CIRCULATING IGF-I IN PLASMA OF GROWING MALE AND FEMALE TURKEYS OF MEDIUM AND HEAVY WEIGHT LINES [J].
BACON, WL ;
NESTOR, KE ;
EMMERSON, DA ;
VASILATOSYOUNKEN, R ;
LONG, DW .
DOMESTIC ANIMAL ENDOCRINOLOGY, 1993, 10 (04) :267-277
[8]  
BACON WL, 1989, GEN COMP ENDOCR, V74, P417
[9]   QUANTITATIVE-ANALYSIS OF THE FEEDING-BEHAVIOR OF 4 POPULATIONS OF CHICKENS [J].
BARBATO, GF ;
CHERRY, JA ;
SIEGEL, PB ;
VANKREY, HP .
PHYSIOLOGY & BEHAVIOR, 1980, 25 (06) :885-891
[10]   ADRENOCORTICAL AND HETEROPHIL LYMPHOCYTE-RESPONSES TO CHALLENGE IN HENS SHOWING SHORT OR LONG TONIC IMMOBILITY REACTIONS [J].
BEUVING, G ;
JONES, RB ;
BLOKHUIS, HJ .
BRITISH POULTRY SCIENCE, 1989, 30 (01) :175-184