Nutritional strategies to support performance of commercial Pekin ducks exposed to a high-temperature thermal challenge over 29–41 days of age

Downing, J. A.

doi:10.1071/an21337

Cited by 2 publications

(1 citation statement)

References 45 publications

(63 reference statements)

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“…Regarding the effects of betaine on ducks, it was found that supplementing their feed with betaine and their water with Vitamin C, as well as limiting their feed withdrawal (FW) can improve live weight gain (LWG) when exposed to heat stress. However, the LWG improvement was only 4.3–6.3% and did not affect feed intake [ 89 ]. As mentioned by another study, a diet supplemented with betaine at 700 ppm has beneficial effects on SCFAS, biochemical blood parameters, and body weight of broiler ducks under hot climate stress [ 77 ].…”

Section: Different Beneficial Effects Of Dietary Betaine In the Poult...mentioning

confidence: 99%

Betaine: A Potential Nutritional Metabolite in the Poultry Industry

El-Ghany

Babazadeh

2022

Animals

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Poultry industry has been recognized as a fast-developing sector aiming to produce low-cost and high-nutrient foods for human consumption. This review article aimed to focus on the significant roles of dietary betaine supplementation in the poultry industry. In this respect, different effects of betaine on performance and carcass traits, as well as its osmoregulatory, anticoccidial, immune-modulatory, and heat-stress alleviation activities, were discussed. Different concentrations of betaine supplementation can improve the feed conversion ratio, final body weight, breast muscle yield, egg production ratio, and reduce body fat contents in broiler chicken, turkey, duck, geese, and quail diets. Betaine supplemented with methyl groups can eliminate the need to have some methyl-group donors, including choline and methionine, therefore having positive effects on feed conversion ratio in poultry diets. The osmolytic character of betaine can alleviate heat stress and have a positive impact on tonic immobility, which consequently reduces stress in poultry. By inhibiting distinct developmental stages of Eimeria species, betaine reduces the damaging effects of coccidiosis on broiler chickens and improves intestinal structure and function. The immunological, cardiovascular, neurological, renal, and hepatic metabolic systems benefit from betaine’s osmo-protective properties. Therefore, betaine has the potential to be considered as an alternative to feed additives and enhances the health status and productive performance of poultry.

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Section: Different Beneficial Effects Of Dietary Betaine In the Poult...mentioning

confidence: 99%

Betaine: A Potential Nutritional Metabolite in the Poultry Industry

El-Ghany

Babazadeh

2022

Animals

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Use of electrolyte and betaine water supplementation to support improved liveweight gain of commercial Pekin ducks exposed to adverse high temperature in the week prior to processing

Downing

2024

Anim. Prod. Sci.

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Context Commercial Pekin Ducks housed in conventional open-sided sheds often experience heat stress in summer. Electrolyte or osmolyte supplements can help birds cope under heat stress. Aims To assess the effects of water electrolyte/betaine supplementation or betaine in feed on the growth performance of Pekin ducks exposed to high ambient temperature. Methods Commercial Cherry Valley Pekin ducks were fed diets with a dietary electrolyte balance (DEB) of 160 (L-DEB) or 209 (H-DEB) over Days 15–41 (D15–41) of age. Over D36–41, ducks were provided with water alone or supplemented with betaine in the feed (BF), or betaine and an ‘in-house’ electrolyte (E) formulation at 50%, 100% or 150% (D36–41) or at 100% for only 36 h on D40–41. There were 12 treatments with four replicate pens for each treatment. On D36–41 of age, temperature was increased to 28–32°C for 9 h (from 08:30 hours to 17:30 hours) and then returned to 22–24°C for the remainder of the day. Individual liveweights were taken on D28, D35, D41. During these times, feed intake and water consumption were determined. On D41, one male and one female from each pen were weighed, euthanised and breast muscle was removed and weighed. Birds were collected for commercial processing at 04:00 hours on D42. Key results Over D15–35, the DEB had no effect on bird performance. Over D36–41, for liveweight gain (LWG) there were significant interactions between treatment × week (P < 0.001) and treatment × diet (P = 0.017). Supplements E150 and E100 + 36 h supported LWG more than did other treatments, while treatments BF, E50 and E100 supported higher LWG than in controls. On the L-DEB diet, the control birds had a LWG lower than in other treatments (P < 0.05). On the H-DEB diet, the E50 supplement had highest LWG, but comparable to that in E100 + 36 h. The supplements had no effects on breast muscle yield, weight losses during transport and lairage or processed carcass weights. Conclusions The electrolyte supplements supported higher LWG during exposure to moderately adverse high temperature. Supply for 36 h supported LWG equivalent or better than did other treatments given over 6 days. The benefits could be related to increased water intake and not just electrolyte supply. Implications Water electrolyte plus betaine supplementation supports improved Pekin duck performance during a moderately high temperature challenge.

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Nutritional strategies to support performance of commercial Pekin ducks exposed to a high-temperature thermal challenge over 29–41 days of age

Cited by 2 publications

References 45 publications

Betaine: A Potential Nutritional Metabolite in the Poultry Industry

Betaine: A Potential Nutritional Metabolite in the Poultry Industry

Use of electrolyte and betaine water supplementation to support improved liveweight gain of commercial Pekin ducks exposed to adverse high temperature in the week prior to processing

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