Daily Energy Allotment and Reproductive Performance of Broiler Breeder Males

Attia, Youssef A.; Yamani, K. A.; Burke, W. H.

doi:10.3382/ps.0720042

Cited by 16 publications

(12 citation statements)

References 11 publications

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“…Similarly in Experiment 2, 3.6-kg cage-housed males fed 280 kcal ME/d lost weight in the first 4 wk when daily low ambient temperatures averaged 15.2 C and highs averaged 21.0 C, suggesting that the maintenance energy requirement under these conditions is greater than 280 but less than 320 kcal ME/d. These data are in basic agreement with those of McCartney (1983, 1986) and Attia et al (1993), showing maintenance energy requirements of broiler breeder males to fall into a range of 81 to 95 kcal ME/kg BW per d. Sexton et al (1989) reported that the 192 kcal ME/d would support a minimal amount of growth in caged broiler breeder males weighing about 3.4 kg at the onset of the experiment. This value suggests that 55 to 56 kcal ME/kg BW slightly exceeds the energy maintenance requirements; a value markedly lower than those found by other workers.…”

Section: Discussionsupporting

confidence: 89%

“…These findings agree with those of Attia et al (1993) but are in contrast to the report of Sexton et al (1989), who found an increase in carcass fat associated with increased energy intake of caged males.…”

Section: Discussioncontrasting

confidence: 82%

“…These results have now been found in three experiments. In the first, three energy levels with 14 Ross strain males per treatment, naturally mated with 7 pens of females (i.e., 2 males per pen of females) were used (Attia et al, 1993). The same three energy levels were fed to 7 Arbor Acres males per treatment group with each male naturally mated to a pen of 12 females in the second experiment (Experiment 1 of current study).…”

Section: Discussionmentioning

confidence: 99%

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Daily Energy Allotments and Performance of Broiler Breeders.

Attia¹,

Burke

Yamani

et al. 1995

Poultry Science

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The effects of daily energy intake on reproductive performance of Arbor Acres males and on growth of their offspring was studied. In Experiment 1, 21 males were placed in individual pens with 12 females. Three rations, differing in energy, were fed from 24 to 57 wk of age with seven males receiving either 300, 340, or 380 kcal ME/d. In Experiment 2, 32 individually caged males were given daily allotments of 280, 320, 360, or 360 kcal ME/d from 26 to 32 wk of age and 300, 340, 380, or 380 kcal ME/d from 32 to 38 wk. Rations of the two groups of males fed the highest energy level differed in formulation, one being the same wheat short-based basal ration as fed to the two lower energy groups, only with additional fat, and the other being a corn-soybean-based ration. Body weight and testes weight were increased with increased energy allotment in both experiments but carcass composition was unaltered. There were no significant effects of energy intake on fertility or hatchability in either experiment. Even though mean differences were not significant, fertility in two pens dropped to near zero at 38 wk in Experiment 1. Semen characteristics and plasma testosterone concentrations were unaffected by energy intake in Experiment 2. There was a significant linear increase in 6-wk BW of broilers associated with the increase in sire energy intake in each of three batches of broilers grown in Experiment 1 and in one of two batches of broilers grown in Experiment 2.

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Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

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Daily Energy Allotments and Performance of Broiler Breeders.

Attia¹,

Burke

Yamani

et al. 1995

Poultry Science

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“…At the beginning of the experiment (at one day of age), the chicks were individually weighed to the nearest gram, then they were weighed weekly till the end of the experiment according to (Attia, 1995).…”

Section: A Body Weight (Bw)mentioning

confidence: 99%

Effect of Dietary Supplementation of Probiotics, Prebiotics, Synbiotics, Organic Acids and Enzymes on Productive and Economic Efficiency of Broiler Chicks

Kamel¹,

Mohamed²

2016

AJVS

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This study was conducted to evaluate the effect of different feed additives (Probiotics, Prebiotic, Synbiotic, Organic acids and Enzymes) on productive and economic efficiency of Cobb and Ross broiler breeds. A total of 576 healthy unsexed one-day-old broiler chicks (Cobb and Ross breed) were allocated randomly in to 12 groups, 6 groups for each breed. Each group consisted of three replicates (total 36 replicates for all groups). The results showed that the highest body weight at 42 days of age was found for synbiotic and organic acid groups for Cobb breed (2050 and 2105.70 gm, respectively). Cobb breed showed higher body weight than Ross breed from the first day of age till the end of experiment. The value of total return was the highest for organic acid groups of both Cobb and Ross breed (L.E 27.72 and 27.41, respectively) and for Synbiotic groups (L.E 27.0 and 27.26 respectively), while the lowest value was found for the enzyme group of Cobb breed (L.E 25.16).The value of net profit was the highest for synbiotic group of Ross breed and organic acid group of Cobb breed (L.E 5.35 and 4.95 /chicken, respectively). On the basis of our results, it would be concluded that organic acids and synbiotic feed additives were better than other used feed additives, and they had an important role in improving productive and economic efficiency of broiler chicks.

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“…Extensive studies suggested that offspring performance could be influenced by maternal nutritional status at specific periods (Enting et al 2007;Zhu et al 2012;Koppenol et al 2015). Maternal diets with high energy levels increased the body weight of male offspring and the number of eggs per hen (Attia et al 1993(Attia et al , 1995b. High energy allotments for male broilers increased body weight of 42-d-old offspring (Attia et al 1995a).…”

Section: Introductionmentioning

confidence: 99%

Maternal energy restriction by low starch or fat affects carcase trait, meat quality and muscle antioxidative properties in Arbor Acres broilers

Yang

et al. 2019

Italian Journal of Animal Science

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In the experiment, the effects of maternal dietary energy restriction on carcase, meat quality and antioxidant capacity in broilers were evaluated. A total of 400 25-weeks-old Arbour Acres broiler breeder female birds were randomly assigned to four groups (T1, T2, T3 and T4) with different dietary metabolisable energy levels (11.70, 9.36, 8.19 and 5.85 MJ kg À1). Female birds were restrictively fed same intake. Broilers from different maternal dietary energy were fed diets similar in nutrients contents during deferent growth period. Low maternal energy decreased egg weight and offspring hatch weight. T2 group got a higher thigh muscle percentage of 28d-old offspring and a higher body weight of 49-d-old offspring than T1 group. Abdominal fat percentage of 49-d-old offspring in T3 group was increased. Low maternal energy increased intramuscular fat (IMF) contents in 28-d-old offspring breast and 49-d-old offspring thigh. 49-dold offspring in T2 and T3 groups got lower drip loss and higher meat colour value. T2 and T3 groups had higher total superoxide dismutase and glutathione peroxidase activities in offspring muscles and lower malondialdehyde level. A higher glutathione peroxidase mRNA expression in breast muscle was found in T2 group. Maternal dietary energy restriction altered egg weight and offspring hatch weight. Appropriate reduction of maternal dietary energy made chickens fattier and increased the antioxidant capacity of offspring muscles. HIGHLIGHTS It is well known that embryo development and postnatal growth are influenced by maternal nutritional supply. This paper shows that 9.36 MJ ME/kg diet for hens during laying period is better for broiler to achieve greater slaughter weight and body antioxidant capacity. This paper indicated that maternal dietary energy restriction affected fat accumulation and antioxidant capacity of offspring. Maternal nutritional management may become a way to regulate the quality of chickens through.

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Daily Energy Allotment and Reproductive Performance of Broiler Breeder Males

Cited by 16 publications

References 11 publications

Daily Energy Allotments and Performance of Broiler Breeders.

Daily Energy Allotments and Performance of Broiler Breeders.

Effect of Dietary Supplementation of Probiotics, Prebiotics, Synbiotics, Organic Acids and Enzymes on Productive and Economic Efficiency of Broiler Chicks

Maternal energy restriction by low starch or fat affects carcase trait, meat quality and muscle antioxidative properties in Arbor Acres broilers

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