scholarly journals Hormonal levels of estradiol, testosterone, and progesterone at entry into lay of year 1980 vs. 2000 broiler breeder females under fast and slow release from feed restriction

2018 ◽  
Vol 97 (10) ◽  
pp. 3728-3735
Author(s):  
Eliyahu M Heifetz ◽  
Israel Rozenboim ◽  
Morris Soller ◽  
Yoav Eitan
Keyword(s):  
Slow Release ◽  
Feed Restriction ◽  
Broiler Breeder ◽  
Hormonal Levels

scholarly journals Response of Broiler Breeder Females to Feed Restriction Below Recommended Levels.

1991 ◽  
Vol 70 (3) ◽  
pp. 489-498 ◽  
Author(s):  
T.R. FATTORI ◽  
P.E. HILDEBRAND ◽  
H.R. WILSON
Keyword(s):  
Feed Restriction ◽  
Broiler Breeder

Reproductive performance, growth rate and body composition of full-fed versus feed-restricted broiler breeder hens

1991 ◽  
Vol 71 (2) ◽  
pp. 549-556 ◽  
Author(s):  
F. E. Robinson ◽  
N. A. Robinson ◽  
T. A. Scott
Keyword(s):  
Reproductive Performance ◽  
Feed Restriction ◽  
Embryo Viability ◽  
Broiler Breeder ◽  
Breeder Hens ◽  
Broiler Breeder Hens ◽  
Indian River ◽  
Prime Sequence ◽  
Ad Libitum ◽  
Ad Libitum Feeding

The effects of ad libitum versus restricted feeding during the period from 22 to 62 wk of age were examined in 60 individually-housed Indian River broiler breeder hens. Body weight of 30 ad-libitum-fed hens was approximately 700 g heavier than that of 30 restricted hens throughout most of the laying period. Mean egg output was lower in ad-libitum-fed hens (136.2 eggs) compared to restricted hens (176.6 eggs). A similar number of laying sequences (defined as consecutive days of laying) were observed in both groups of hens; however, the mean length of the prime sequence was 24.4 d for the restricted hens compared to 14.9 d for the ad-libitum-fed hens. Ad-libitum-fed hens had a higher incidence of intersequence pauses of greater than 11 d duration compared to restricted hens. Feed restriction did not improve fertility, embryo viability, or embryo production of eggs incubated for a period of 7 d. At 62 wk of age the carcasses of the restricted-fed hens contained on average 901 g of fat while the carcasses of the ad-libitum-fed hens contained 1270 g of fat. Ad libitum feeding reduced reproductive performance by reducing the length of the prime sequence and by increasing the number of long intersequence pauses. Key words: Broiler breeder hens, full-feeding, feed restriction, obesity, reproductive performance

scholarly journals Growth heterogeneity in broiler breeder pullets is settled before the onset of feed restriction but is not predicted by size at hatch

2017 ◽  
Vol 95 (1) ◽  
pp. 182
Author(s):  
C. Lindholm ◽  
J. Jönsson ◽  
A. Calais ◽  
A. Middelkoop ◽  
N. Yngwe ◽  
...  
Keyword(s):  
Feed Restriction ◽  
Broiler Breeder

scholarly journals Feed Restriction in Broiler Breeder Pullets: Skip-a-Day Versus Skip-Two-Days

1988 ◽  
Vol 67 (5) ◽  
pp. 809-813 ◽  
Author(s):  
I. BARTOV ◽  
S. BORNSTEIN ◽  
Y. LEV ◽  
M. PINES ◽  
J. ROSENBERG
Keyword(s):  
Feed Restriction ◽  
Broiler Breeder

scholarly journals Response of Broiler Breeder Females to Feed Restriction Below Recommended Levels.

1993 ◽  
Vol 72 (11) ◽  
pp. 2044-2051 ◽  
Author(s):  
T.R. FATTORI ◽  
H.R. WILSON ◽  
R.H. HARMS ◽  
F.B. MATHER ◽  
R.D. MILES ◽  
...  
Keyword(s):  
Feed Restriction ◽  
Broiler Breeder
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