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GB2118017A - Poultry feedstuff - Google Patents

Poultry feedstuff Download PDF

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Publication number
GB2118017A
GB2118017A GB08309457A GB8309457A GB2118017A GB 2118017 A GB2118017 A GB 2118017A GB 08309457 A GB08309457 A GB 08309457A GB 8309457 A GB8309457 A GB 8309457A GB 2118017 A GB2118017 A GB 2118017A
Authority
GB
United Kingdom
Prior art keywords
sorbitol
poultry
feedstuff
feed
birds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08309457A
Other versions
GB2118017B (en
GB8309457D0 (en
Inventor
Frederick George Perry
Dr Brian Geoffrey Vernon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trouw (UK) Ltd
Original Assignee
Trouw (UK) Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trouw (UK) Ltd filed Critical Trouw (UK) Ltd
Priority to GB08309457A priority Critical patent/GB2118017B/en
Publication of GB8309457D0 publication Critical patent/GB8309457D0/en
Publication of GB2118017A publication Critical patent/GB2118017A/en
Application granted granted Critical
Publication of GB2118017B publication Critical patent/GB2118017B/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K50/00Feeding-stuffs specially adapted for particular animals
    • A23K50/70Feeding-stuffs specially adapted for particular animals for birds
    • A23K50/75Feeding-stuffs specially adapted for particular animals for birds for poultry
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/163Sugars; Polysaccharides

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Birds (AREA)
  • Fodder In General (AREA)

Abstract

A poultry feedstuff contains a minor but effective amount of sorbitol, preferably 0.01 to 5% wt. The sorbitol is believed to act as an emulsifier for lipids in the feedstuff, and preferred feedstuffs have higher than normal lipid contents (e.g. 2.5-20% wt.).

Description

SPECIFICATION Poultry feedstuff This invention relates to a poultry feedstuff.
According to the present invention a poultry feedstuff contains a minor but effective amount of sorbitol.
The feedstuff may be used for any poultry (including turkeys and ducks) but is particularly suitable for broiler chickens (i.e. birds raised rapidly from day old chicks to birds of a weight suitable for consumption). It has been found that the addition of as little as 0.1% wt of sorbitol in the feed increases the growth rate (as measured by the average live weight gain per unit of time) and reduces the Feed Conversion Ratio (FCR).
Sorbitol is a hexahydric alcohol CeH,406 which is available commercially and which may be produced from glucose by high pressure hydrogenation or electrolytic reduction.
The amount of sorbitol may conveniently be from 0.01 to 5% wt, by weight of feed with, as indicated above, an effect being noted at a level as low as 0.1%. A preferred range is 0.01 to 1% wt.
The other components of the feed may be the normal components for poultry feed and include sources of carbohydrate, protein, lipids (i.e. fats and oils), fibre, vitamins, amino-acids, and minerals. The principles of poultry feeding are well understood in the industry and the term "poultry feedstuff" would be understood as differentiating the feedstuff from feedstuff for other livestock such as cattle or pigs.
Without being bound by any theory, it is believed that the beneficial effect of sorbitol results from the fact that it acts as an emulsifier for lipids and, thus, improves lipid digestibility. The use of sorbitol is particularly preferred with poultry feeds of higher than normal lipid content, e.g. feeds with from 2.5 to 20% wt of lipid.
The invention includes a method of feeding poultry comprising feeding to the poultry a feedstuff containing a minor but effective amount of sorbitol.
Other features of the feedstuff used may be as set out above.
The feeding pattern may follow standard practice. Thus, feeding will normally be ad lib with, for broiler birds, feeds being adjusted as the birds grow. For example starter and finisher feeds may be used with one or more intermediate feeds if required.
The invention is illustrated by the following comparative examples.
EXAMPLE 1 Three poultry feeds were made up from the following constituents: maize, wheat, soya meal, full fat soya, fish meal, fat, minerals, vitamins and amino acids.
The proportions were varied slightly to give Super Starter, Starter and Rearer Feeds with the following compositions: Super Starter Starter Rearer Lipid 6.5% wt 8.3% wt 8.0% wt Protein 22.7% wt 20.7% wt 18.0% wt Fibre 2.9% wt 2.9% wt 2.8% wt Lysine 1.4% wt 0.26% wt 1.04% wt Methionine and Cysteine 0.91% wt 0.87%wt 0.76% wt Metabolisable Energy 1390 KCals/lb 1420 KCals/lb 1450 KCals/lb 0.1 % wt of sorbitol was added to half of these feeds by adding it to the vitamin-mineral premix, which was then added to the mix in the normal way.
The feeds were used in an eight-house broiler chicken unit. Houses 1 to 4 (38,600 birds) were supplied with the feeds containing 0.1% wt sorbitol; houses 5 to 8 (38,529 birds) were used as control, being supplied with the same feed but with the sorbitol omitted.
All other features of the houses were the same (e.g. temperature and lighting for houses, quantity of feed supplied and water supply).
The birds were in the houses from day old chicks until they were removed for slaughter.
The data obtained on the birds was as follows.
Houses 1-4 Houses 5-8 Feed with sorbitol Feed without sorbitol Mortality(%) 4.42 3.93 Average live weight gain (Ib) 4.356 4.281 Age (days) 49.196 50.267 Feed Conversion Ratio 2.093 2.12 It will be seen that birds with sorbitol in their feed had a higher average live weight gain over a shorter period than the birds without sorbitol in their feed. In economic terms the cost of the sorbitol was returned six-fold.
EXAMPLE2 Trials were carried out to assess the effect of sorbitol on the Metabolisable Energy content of tallow when included in broiler chicken feed. The chicks were fed a starter mash from 0-7 days and the experimental diets from 8-21 days. Droppings were collected, weighed and sampled on days 1 7 to 21 to determine the influence of sorbitol on Metaboiisable Energy. Chicks were weighed at days 8, 15 and 21.
Diets were as follows: 1. Basal diet containing no added fat.
2. Basal diet containing 4% added tallow.
3. As Treatment 2, but including 500 g sorbitol (0.05% wt) 4. As Treatment 2, but including 1000 g sorbitol (0.10% wt) Composition of basal diet is shown below.
g/kg Ground wheat 619.69 Ground maize 52.08 White fish 26.04 Soyabean meal (50 CP) 219.79 Microbial Protein 52.08 Vitamin/Mineral Supplement 13.02 Dicalcium phosphate 9.38 limestone 5.21 Salt 0.73 DL-Methionine 0.94 Lysine 1.04 1000.00 When 4% wt of tallow was added to this basal diet, a corresponding proportional reduction was made to the content of wheat, maize, fish, soyabean meal and microbial protein. The microbial protein was that sold by ICI Limited under the Registered Trade Mark "Pruteen".
The results are shown below 3 4 Basal + Basal + 2 4% tallow 4% tallow Basal + + 0.05% + 0.1% Basal 4% tallow Sorbitol Sorbitol Liveweightgain 286.7 305.2 310.3 311.5 8-21 daysg/bird Feed Conversion 1.848 1.742 1.751 1.721 Ratio Metabolisable Energy - 28.05 38.17 37.50 of Tallow The results show an improved live weight gain per bird when going from Diet 1 to Diet 4 and a corresponding lower feed conversion ratio. The metabolisable energy of the tallow was increased by the addition of sorbitol to the diet.

Claims (7)

1. A poultry feedstuff containing a minor but effective amount of sorbitol.
2. A poultry feedstuff as claimed in claim 1 containing from 0.01 to 5% wt of sorbitol.
3. A poultry feedstuff as claimed in claim 1 or 2 containing from 2.5 to 20% wt of lipid.
4. A method of feeding poultry comprising feeding to the poultry a feedstuff as claimed in any of claims 1 to 3.
5. A method of feeding poultry as claimed in claim 4 wherein the poultry are broiler chickens.
6. A feedstuff as claimed in claim 1 substantially as described in the Examples.
7. A method of feeding poultry substantially as described in the Examples.
GB08309457A 1982-04-13 1983-04-07 Poultry feedstuff Expired GB2118017B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08309457A GB2118017B (en) 1982-04-13 1983-04-07 Poultry feedstuff

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8210700 1982-04-13
GB08309457A GB2118017B (en) 1982-04-13 1983-04-07 Poultry feedstuff

Publications (3)

Publication Number Publication Date
GB8309457D0 GB8309457D0 (en) 1983-05-11
GB2118017A true GB2118017A (en) 1983-10-26
GB2118017B GB2118017B (en) 1985-10-23

Family

ID=26282537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08309457A Expired GB2118017B (en) 1982-04-13 1983-04-07 Poultry feedstuff

Country Status (1)

Country Link
GB (1) GB2118017B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130746A3 (en) * 1983-07-01 1986-08-13 Bp Nutrition Limited Pig feedstuff
US5279838A (en) * 1984-09-26 1994-01-18 Sartec Corporation Method for processing feed grains
EP2371226B1 (en) * 2009-03-26 2017-03-08 Yun, Kwan-Sik Bile salt adjuvant for animals for improving fat utilization efficiency in the bodies of animals

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB742245A (en) * 1950-12-08 1955-12-21 Philips Nv Improvements in or relating to dry and free-flowing vitamin preparations
GB1428181A (en) * 1972-06-01 1976-03-17 Unisabi Sa Bird food

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB742245A (en) * 1950-12-08 1955-12-21 Philips Nv Improvements in or relating to dry and free-flowing vitamin preparations
GB1428181A (en) * 1972-06-01 1976-03-17 Unisabi Sa Bird food

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0130746A3 (en) * 1983-07-01 1986-08-13 Bp Nutrition Limited Pig feedstuff
US5279838A (en) * 1984-09-26 1994-01-18 Sartec Corporation Method for processing feed grains
US5518750A (en) * 1984-09-26 1996-05-21 Sartec Coporation Feed grain conditioning composition and method of tempering feed
EP2371226B1 (en) * 2009-03-26 2017-03-08 Yun, Kwan-Sik Bile salt adjuvant for animals for improving fat utilization efficiency in the bodies of animals

Also Published As

Publication number Publication date
GB2118017B (en) 1985-10-23
GB8309457D0 (en) 1983-05-11

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PCNP Patent ceased through non-payment of renewal fee