Experiment two considered a shorter period of ad libitum feeding
because this was more likely to be achievable on-farm during late pregnancy in late winter when feed is often in short supply.
Animals on ad libitum feeding
regimens had greater standard deviations in weekly growth and achieved overall greater mass than animals on restricted diets.
2Levels of previous feeding restriction; realimentation phase lasted for 49 days of ad libitum feeding
Intake restriction in beef cattle by offering feed 8.5% below than ad libitum feeding
, reduced daily gain 5.2% and improved feed efficiency 3.2% reported by Hicks et al.
Trial I (Ad libitum feeding
): Hemoglobin level in the control group was 14.05, 15.28, and 16.20 g/dL at 3rd, 6th, and 8th week, respectively, while, packed cell volume was 30.91%, 33.62%, and 36.64%.
Peripheral insulin treatment (1 to 20 IU) did not significantly alter the feed intake of chicks either under ad libitum feeding
or fasting conditions in 0.5, 1, 2, 3, and 4 h (p>0.05).
Effects of constant heat stress on meat color of longissimus dorsi muscle in finishing pigs Post-mortem Items CON H30 PF time 45 min L * 44.37 (B) 45.73 (A) 44.20 (B) a * 17.86 (a) 16.44 (b) 16.83 (ab) b * 5.61 5.04 4.43 24 h L * 50.68 (B) 52.32 (A) 49.58 (C) a * 21.85 20.70 21.33 b * 12.37 (a) 11.38 (b) 11.27 (b) Post-mortem Items SEM p-value time 45 min L * 0.29 <0.01 a * 0.37 0.03 b * 0.35 0.08 24 h L * 0.20 <0.01 a * 0.38 0.13 b * 0.27 0.02 CON, constant ambient temperature at 22[degrees]C and ad libitum feeding
; H30, constant high ambient temperature at 30[degrees]C and ad libitum feeding
; PF, constant ambient temperature at 22[degrees]C and pair-fed to the H30 pigs; SEM, standard error of the mean; L *, lightness (n = 8); a *, redness (n = 8); b *, yellowness (n = 8).
In the previous study we also found that the time-restricted feeding in the morning increased the FE of fattening geese, but lowered the DG, compared with ad libitum feeding
(Ho et al., 2014).
Effect of feeding from birth to weaning on calf performance and milk yield potential Duration/age Feeding regime Birth to weaning Calves suckling milk twice daily vs calves fed MR Day 1 to d 43 of age Ad libitum feeding
of milk by artificial nipples vs milk feeding by bucket at 10% of body weight (BW) 2 to 8 wks of age Increasing energy and protein intake in MR Until 6 wks of age Warm MR (35[degrees]C) for ad libitum intake or cold MR for ad libitum intake or restricted warm MR 4 L/d in 2 equal feeds.
Broiler breeders with access to ad libitum feeding
consume energy (643 kcal/d), which is almost twice the quantity of actual requirement (370 kcal/d) for maintenance and egg production (Lopez and Leeson, 1994).
Equal number of chicks for each housing system was subjected to either ad libitum feeding
(AL) or 60% feed restriction on day 4, 5 and 6 (FR).
All animals grazed a pasture between 5 to 10 months of age then they were fed growing ration at the rate of 1.5% of their BW along with ad libitum supply of Italian ryegrass hay between 11 to 16 months of age and thereafter switched to ad libitum feeding
of finishing ration and hay between 17 to 24 months of age.