NZ250163A - Pour-on application of trace metals to animals - Google Patents
Pour-on application of trace metals to animalsInfo
- Publication number
- NZ250163A NZ250163A NZ25016393A NZ25016393A NZ250163A NZ 250163 A NZ250163 A NZ 250163A NZ 25016393 A NZ25016393 A NZ 25016393A NZ 25016393 A NZ25016393 A NZ 25016393A NZ 250163 A NZ250163 A NZ 250163A
- Authority
- NZ
- New Zealand
- Prior art keywords
- formulation
- selenium
- pour
- animals
- trial
- Prior art date
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- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Patents Form # 5
25016J
COONATED APPLICATION #250163/260638
based on
Application # 250163 of 8 November 1993 and
Application # 260638 of 31 May 1994
l4-1994
'
- / ... < > r ••
NEW ZEALANP Fatents Act 1951 COMPLETE SPECIFICATION
TITLE: Application of Trace Elements to Animals
We, Ashmont Holdings Limited, a New Zealand company, of 48 Diana Drive, Glenfield, Auckland, New Zealand, hereby declare the invention, for which we pray that a patent xnay be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
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Patent Art JllZJZZ
assistant COMMISSIONER PF-flgEMIS
PF05.JWP
FEE CODE - 1050
25016
FIELD
This invention relates to the application of trace elements to animals.
BACKGROUND
The provision of trace elements to animals in order to supplement their diet, has been common practice. In some cases it is desirable to provide farm animals with trace elements, and in other cases it is essential if there is a mineral deficiency in the soil. Additional levels of trace elements have been included in animals diet or dosed by means of oral or parenteral administration. They have also been administered by means of various slow release boluses and long acting injectibles.
There is a need to provide an easy and effective means of administering trace elements to animals, preferably without the need to inject the animal, or to administer the material orally.
The present invention seeks to provide an improved means of administering trace elements to animals, or one which will at least provide farmers and veterinarians with a useful choice.
STATEMENT OF INVENTION
Surprisingly it has been discovered that trace elements can be administered to animals by means of pour-on formulations applied to the surface of an animal's skin, hide, or fleece.
In one aspect, the invention provides a pour-on formulation containing a therapeutically effective amount of a trace element in a pharmaceutically acceptable carrier.
In another aspect the invention provides a method of applying a trace element to an animal by topical application to achieve therapeutic serum levels of the trace element
OBJECT
697&CS7.N94/JP/at
1
- CP ~
250163
Preferably the phaxmaceutically acceptable carrier is an alcohol, water, or combinations thereof.
Preferably the trace element is chosen from the group containing selenium, copper, cobalt and iodine.
More preferably the trace element is a water soluble trace element, and is present in a formulation containing water, a sticking agent, a wetting agent, and a dyestuff.
Alternatively, the formulation may comprise a co-solvent formulation containing a water soluble trace element such as sodium selenate, together with butyl dioxitol and water. In addition the formulation may contain an endoparasiticide, such as levamisole, synthetic pyrethroids, avermectin, abamectin, or the like, vitamins, such as Vitamin 15 B12, dyestuff or other minor components. It may also contain at least one vitamin.
Other formulations can include non-aqueous formulations wherein the liquid carrier is an organic liquid. Examples include the alcohols, glycols or glycol esters; hydrocarbons such as xylene, paraffin or vegetable oils; isopropyl myristate; an ester of 20 a fatty acid; an alkylamide of a fatty acid; an ethoxylated block polymer.
In another aspect the invention provides a non-aqueous formulation containing one or more oxides of selenium or copper or cobalt dissolved in a solvent chosen from the group comprising ethanol, monopropylene glycol, and butyl dioxitol. Preferably the 25 trace element is present as selenium dioxide or selenium trioxide.
DRAWINGS:
These and other aspects of the invention, will become apparent from the following 30 description, which is given by way of example only, with reference to the accompanying drawings in which:
Figure 1 is a graph showing serum selenium levels, formulation 1, in animals;
Figure 2 is a graph showing mean serum selenium levels, formulation 2, in animals;
G97SCS7.N94/JP/U
250163
Figure 3 is a graph showing selenium blood levels, formulation 2, in animals.
Figure 4 is a graph showing blood selenium levels in Angus cattle during trial 5, 5 using formulation 2 over a 12 week period..
PREFERRED EMBODIMENTS
Example 1
Formulation 1 % w/w
Sodium selenate 2.0
Keltrol(Xanthum Gum BP) 0.3
Wetting agent 0.2
Water to 100
Example 2
Formulation 2 % w/w
Sodium selenate 1.2
Butyl dioxitol 30.0
Water to 100
Example 3
Formulation 3 % w/w
Copper Chloride 2H20 22.8
Nonidet 620P (Block polymer detergent) 10.0
MPG (Mono propylene glycol) 10.0
Formalin 0.2
Water 57.0
100
6975QCS7,596/HC/jq
250?65
Formulation 3 is prepared by the following method:
To a clean dry mixing vessel, add the water, and with stirring, add Chloride 2^0 and stir until dissolved. With stirring, add Nonidet 620P and MPG and stir until fully dispersed and lastly add Formalin.
Example 4
Formulation 4 % w/w
Ammonium Sulphate
0.50
Citric Acid
0.15
Vitamin B12 (ex Roche)
1.0
Sodium Selenate
1.18
Butyl Dioxitol
.0
Water
87.17
100.00
Example 4 is prepared by the following method:
Water was measured into a clean tank and ammonium sulphate and citric acid were added with the stirring. The vitamin B12 was added and stirred until fully dissolved. Sodium selenate was then added and stiired until fully dissolved. Lastly was added the butyl dioxitol and the solution was mixed until uniform.
Sample g
Formulation 5 % w/v
Selenium Dioxide (Se02) 0.71
Butyl Dioxitol to 100 mL
To produce a selenium pour-on containing 5 grams of selenium per litre, the selenium dioxide is stirred into the butyl dioxitol until fully dissolved (approximately 30 minutes). This makes a non-aqueous pour-on formulation.
6975C37.N94/JP/at
now amendedI 25 0 t 0 3
Other non-aqueous formulations can be made using a solvent chosen from a comprising monopropylene glycol, ethanol, and butyl dioxitol. We have found selenium dioxide, selenium trioxide, and H2Se04 are all soluable at this c solvents, and they are all useful solvents which can be used as pour-on formulations.
Trace elements, can be added to pour-on formulations containing^other active ingredients, for example pour-ons containing anthelmintics such as npxidectin, or any of the avermectins, for example ivamectin.
Formulation 6 has been the subject of a product stability trial, a6d this is shown in table 6. This table shows that the product is stable, and contains Refill amounts of selenium after three months.
TRIAL 1
Formulation 1 was trialled on two friesian bulls^ith the result shown in Table 1 and Figure 1.
This trial of Formulation 1 was conducted/to determine whether sodium selenate can be 20 successfully absorbed through the^Ain following the application of a topical ("pour-on") formulation.
Materials and Methods Two Friesian yearling bulls wfere weighed and examined to confirm the absence of any 25 back skin defects. Using^critical trial format whereby each animal acted as its own control, the two bulls w/we then treated with a pour-on formulation of the test product. This was administered along the back mid-line with a graduated syringe. The bulls were grazed normally over the trial period.
The test product was a 0.8% solution of elemental selenium (ie. sodium selenate) at 8 mg/mi in/accordance with Formulation 1. The normal oral dose is 20-30 mg/kg of seleniunr Accordingly, it was decided to apply the test product at double the adult dose, cm* 60 mg/kg of selenium. This equated to a volume of 7.5 ml of test product.
Tne two bulls were bled twice prior to treatment, and the serum selenium levels are shown in Table 1, and plotted in Figure 1. Both were treated on the same start date
6S75C37.N94/JP/at
250163
as amended
COGNATE Nos.
Other non-aqueous formulations can be made using a solvent chosen from a group comprising monopropylene glycol, ethanol, and butyl dioxitol. We have found that selenium dioxide, selenium trioxide, and H2Se04 arc all soluable at this class of solvents, and they are all useful solvents which can be used as pour-on formulations.
Trace elements, can be added to pour-on formulations containing other active ingredients, for example pour-ons containing anthelmintics such as moxidectin, or any of the avermectins, for example ivamectin.
In the following trials, trials 1 and 3 are examples of trials including formulations similar to those of the invention, but not as claimed by the invention.
IS TRIAL 1
A formulation containing sodium selenate was trialled on two friesian bulls with the result shown in Table 1 and Figure 1.
This trial of was conducted to determine whether sodium selenate can be
successfully absorbed through the skin following the application of a topical ("pour-on") formulation.
Materials and Methods
Two Friesian yearling bulls were weighed and examined to confirm the absence of any 25 back skin defects. Using a critical trial format whereby each animal acted as its own control, the two bulls were then treated with a pour-on formulation of the test product. This was administered along the back mid-line with a graduated syringe. The bulls were grazed normally over the trial period.
The test product was a 0.8% solution of elemental selenium (le. sodium selenate) at 8 mg/ml The normal oral dose is 20-30 mg/kg of selenium. Accordingly, it was decided to apply the test product at double the adult dose, or 60 mg/kg of selenium. This equated to a volume of 7.5 ml of test product.
jj The two bulls were bled twice prior to treatment, and the serum selenium levels are shown in Table 1, and plotted in Figure 1. Both were treatedfofl:4he same^stlrt date
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«i3c.7.NM/»/.t H 0 2 OCT BBS Jj
V'- f^'7
250163
(time 0 in Figure 1) and then re-bled at one, two and three weeks post treatment. The sera was removed and frozen and subsequently analysed for selenium levels.
Results
The test material (coloured blue) was very viscous and it seemed not to penetrate the hair mat to reach the skin surface. The following day the test material still seemed to remain on top of the hair mat.
Table 1 gives the results of the changes in seium levels of selenium for both trial animals. The selenium status of both animals was significantly raised (P,0.01) by the treatment. Normal serum selenium levels are typically greater than 150 nmol/1, whereas the selenium levels in Table 1 and shown graphically in Figure 1 were significantly above this level for animal 239.
Discussion
The application of the test product markedly raised the serum selenium levels of both 30 treated animals in comparison to their pre-treatment level. Although each animal was treated with the same volume of material and each was approximately the same weight, the serum responses vary markedly in magnitude, as well as time to peak. These variations in rate and absorption may relate to the viscosity of the test product and the individual physical hair factors. The weather throughout the trial period was warm and 35 dry for the time of year. Certainly no rain fell on the animals for at least four days post-treatment. Prior to treatment and for 24 hours both bulls were under cover to
Table 1
Animal Number
Weight (kg)
Volume of Test Product (ml)
Serum Selenium Levels at Sampling Dates (nmol/1)*
27.7 Day -7
3.8 Day 0
.8 Day 7
17.8 Day 14
24.8 Day 21
229
335
7.5
79
68
120
120
130
239
315
7.5
93
89
420
310
280
^Normal serum selenium levels are >150 nmol/1
6975CS7.H94/JP/ftt
i now amended]
8-
25016,
9
ensure this aspect of coat dryness.
This pilot trial demonstrates that sodium selenate can be formulated to be successful, absorbed through the skin following topical application.
JO
TRIAL 2
A trial was carried out on a number of animals to compare the seruraflevels from a selenium injection (Se-Hypo as the control) with formulation (2) at pates of 12 ml and 18 ml of pour-on (equivalent to 60 mg/kg and 90 mg/kg of seleniunrt respectively).
Materials and Method Twelve friesian weaned bulls having an average weighyfof 231 kgs and having low 15 serum selenium levels were randomly allocated to erne of three groups. The four animals in one group were each injected with 30 mg/kg of Se-Hypo. Animals in the other two groups were treated with formulation (2) at 60 mg/kg and 90 mg/kg respectively.
Serum selenium levels were measurecLprior to treatment and then weekly for nine weeks. On day 0 there was no significant difference between the three groups (means range 70-85 nmol/1). After seven days the mean serum selenium levels of the groups receiving topical application wera4iigher than for the control group (535 and 700 nmol/1 respectively compared to 513 nmol/1 in the control group).
Table 2 gives the results/tt the changes in serum selenium levels from day 0 (treatment day) to day 63.
Discussion
From Table Yit can be seen that the serum selenium levels peaked on day 7 and declined steadily until day 35 when all three groups reached a plateau, - see (Figure 2).
None/6f the animals receiving topical application displayed any sensitivity or toxicity towards the pour-on formulation. The pour-on formulation is easy to apply to the lals and overcomes the need to inject individual animals.
6975CS7.N94/JP/*t
As AMENDilD - 8-
250163
COGNATE Nos.
ensure this aspect of coat dryness.
This pilot trial demonstrates that sodium selenate can be formulated to be successfully 5 absorbed through the skin following topical application.
TRIAL 2
A trial was carried out on a number of animals to compare the serum levels from a 10 selenium injection (Se-Hypo as the control) with formulation (i) at rates of 12 ml and 18 ml of pcur-on (equivalent to 60 mg/kg and 90 mg/kg of selenium respectively).
Materials and Method
Twelve friesian weaned bulls having an average weight of 231 kgs and having low 15 serum selenium levels were randomly allocated to one of three groups. The four animals in one group were each injected with 30 mg/kg of Se-Hypo. Animals in the other two groups were treated with formulation (1) at 60 mg/kg and 90 mg/kg respectively.
Serum selenium levels were measured prior to treatment and then weekly for nine weeks. On day 0 there was no significant difference between the three groups (means range 70-85 nmol/1). After seven days the mean serum selenium levels of the groups receiving topical application were higher than for the control group (535 and 700 nmol/1 respectively compared to 513 nmol/1 in the control group).
Table 2 gives the results of the changes in serum selenium levels from day 0 (treatment day) to day 63.
PiSCUSSiQl)
From Table 2 it can be seen that the serum selenium levels peaked on day 7 and declined steadily until day 35 when all three groups reached a plateau, - see (Figure 2).
None of the animals receiving topical application displayed any sensitivity or toxicity towards the pour-on formulation. The pour-on formulation is easy to apply to the 35 animals and overcomes the need to inject individual animals.
...v0 v;\
«»7SC*7.HM,JF/.t ij q g OCT .'.'I
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\ - -o /
now amended
^30163
/
Over the 63 day trial period the 60 mg/kg pour-on produced a serum response that was bio equivalent to the 30 mg/kg dose of injected Se-Hypo. The 90 mg/kg pour-on/vas seen to be superior to the control.
It can be concluded that at both 60 mg/kg and 90 mg/kg the pour-on formulation (2) was very effective in raising serum selenium levels. /
Table 2
Animal No.
Weight (kg)
Treatment*
Serum Selenium (nmoj//)- Days Post-Treatment
0
7
14
21
/28
42
49
56
63
6
235
Se-Hypo
86
490
340
2
270
210
220
220
220
180
223
Se-Hypo
76
520
34°/
'280
320
210
210
210
190
180
12
245
Se-Hypo
69
480
rfo
250
240
190
180
180
190
170
7
195
Se-Hypo
86
56 9/
350
300
270
190
230
220
230
220
mean
79
/l3
335
280
285
200
210
208
208
188
29
222
A12
/
550
300
240
220
160
200
180
250
160
42
247
A12
A
500
290
230
240
200
210
190
190
170
27
236
A12 /
64
590
320
250
280
190
210
210
190
170
23
271
Al^/
82
500
270
210
200
140
180
160
180
160
mean /
70
535
295
233
235
173
200
185
203
165
194 /
7 A18
76
770
400
270
260
190
190
200
190
180
9
245/
A18
120
660
400
330
370
240
290
230
260
140
^7
A18
63
650
340
300
290
220
230
200
190
200
/
^232
A18
79
720
400
300
300
240
240
230
220
190
/ mean
85
700
385
300
305
223
238
215
215
178
Se-Hypo given at 6 ml (30 mg). Formulation (2) test product at rates of 12 and 18 ml equivalent to 60 and 90 mg respectively.
6975CS7.N94/JP/at
as amended
0 163
COGNATE Nos
Over the 63 day trial period the 60 mg/kg pour-on produced a serum response that was bio equivalent to the 30 mg/kg dose of injected Se-Hypo. The 90 mg/kg pour-on was seen to be superior to the control.
It can be concluded that at both 60 mg/kg and 90 mg/kg the pour-on formulation (1) was very effective in raising serum selenium levels.
Table 2
Animal
Weight
Treat
Serum Selenium (nmolII). Days Post-Treatment
No.
(kg)
ment*
0
7
14
21
28
42
49
56
63
6
235
Se-Hypo
86
490
340
290
270
210
220
220
220
180
223
Se-Hypo
76
520
340
280
320
210
210
210
190
180
12
245
Se-Hypo
69
480
310
250
240
190
180
180
190
170
7
195
Se-Hypo
86
560
350
300
270
190
230
220
230
220
mean
79
513
335
280
285
200
210
208
208
188
29
222
A12
61
550
300
240
220
160
200
180
250
160
42
247
A12
71
500
290
230
240
200
210
190
190
170
27
236
A12
64
590
320
250
280
190
210
210
190
170
23
271
A12
82
500
270
210
200
140
180
160
180
160
mean
70
535
295
233
235
173
200
185
203
165
194
A18
76
770
400
270
260
190
190
200
190
180
9
245
A18
120
660
400
330
370
240
290
230
260
140
227
A18
63
650
340
300
290
220
230
200
190
200
232
A18
79
720
400
300
300
240
240
230
220
190
mean
85
700
385
300
305
223
238
215
215
178
* Se-Hypo given at 6 ml (30 mg). Formulation (2) test product at rates of 12 and 18 ml equivalent to 60 and 90 mg respectively. •.
• ; ft?. QC!Vi33
«»15CJ7.N»4/JP/«t
\
now amended]
-
0163
TRIAL 3
Formulation 3 was trialled on jersey bulls with the results shown in Table 3.
This trial of formulation 3 was conducted to determine whether a comber salt could be successfully and safely absorbed through the skin following the application of a topical ("pour-on") formulation, to raise liver copper levels.
Materials and Methods A group of 29 jersey bulls aged 18 months were weighed and randomly divided into three groups comprising 10, 9 and 10 animals. Eaclygroup was allocated one of the following treatments:
— Cuprax (10)
— Untreated controls (9)
— Formulation 3 (10)
The 29 animals were all treated at th^ same time and for the following week no rain was 20 recorded as possibly affecting the group 3 response. Each animal given Cuprax was treated with two lOg capsules according to the manufacturer's instructions.
Formulation 3 was adnjinistered at 1 ml per 20 kg poured along the midline back region.
All the animals were grazed normally for the three week duration of the trial.
Three weeky after treatment, the bulls were all slaughtered for human consumption and samples oi liver were removed from each animal. Each liver was separately sampled in 30 4 remote places. Two of the samples from each animal were analysed and the results averaged. The results were analysed statistically using a one-way analysis of variants id pair-wise comparison of means.
«975CS7.N»«/JP/»t
AS AMENDED 250163
- COGNATE Nos.
TRIAL 3
A formulation containing copper chloride was trialled on jersey bulls with the results shown in Table 3.
This trial was conducted to determine whether a copper salt could be successfully and safely absorbed through the skin following the application of a topical ("pour-on") formulation, to raise liver copper levels.
Materials and Methods
A group of 29 jersey bulls aged 18 months were weighed and randomly divided into three groups comprising 10, 9 and 10 animals. Each group was allocated one of the following treatments:
- Cuprax (10)
— Untreated controls (9)
The formulation containing copper chloride
The 29 animals were all treated at the same time and for the following week no rain was 20 recorded as possibly affecting the group 3 response. Each animal given Cuprax was treated with two lOg capsules according to the manufacturer's instructions.
The formulation was administered at 1 ml per 20 kg poured along the midline back region.
All the animals were grazed normally for the three week duration of the trial.
Three weeks after treatment, the bulls were all slaughtered for human consumption and samples of liver were removed from each animal. Each liver was separately sampled in 30 4 remote places. Two of the samples from each animal were analysed and the results averaged. The results were analysed statistically using a one-way analysis of variants and pair-wise comparison of means.
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Results
Table 3 gives individual results and group means. There was no statistical differem recorded between any of the group means, but it is noteworthy that the highesuwean liver copper level was recorded for the group given formulation 3.
The topical formulation produced severe skin abrasion along the midline bpdk. This did not appear to cause the animals any distress and did not subsequently lead to any downgrading of the hide at slaughter time.
Table 3
Liver Copper Levels in Individual Animalsr and Group Means
Animal No.
Control
Animal No.
^prax
Animal No.
Test Product
032
382
108
>
/ 702
010
298
148
606
078 /
788
164
1133
111
280
o
952
289
570
154
119
/290
310
101
632
342
786
/ 212
1093
240
959
119
749 y
054
783
367
1378
089
487/
022
867
139
293
170
359
278
153
884
272
/fl78
021
469
338
641
/
091
630
120
725
mean /
636
mean
687
mean
751
assion
THe fact that the topical test formulation produced a higher mean liver copper level /within the first three weeks would suggest that topical application can provide animals successfully with supplementary copper. The main problem associated with formulation 3 was the toxicity at the site of application.
«S75CS7.*94/JP/tt
AS AMENDC-U 250 163
-11- COGNATE Nos.
Results
Table 3 gives individual results and group means. There was no statistical difference recorded between any of the group means, but it is noteworthy that the highest mean liver copper level was recorded for the group given the formulation.
The topical formulation produced severe skin abrasion along the midline back. This did not appear to cause the animals any distress and did not subsequently lead to any downgrading of the hide at slaughter time.
Table 3
Liver Copper Levels in Individual Animals and Group Means
Animal No.
Control
Animal No.
Cuprax
Animal No.
Test Product
032
382
108
702
010
298
148
606
078
788
164
1133
111
280
016
952
289
570
154
119
290
310
101
632
342
786
212
1093
240
959
119
749
054
783
367
1378
089
487
022
867
139
293
170
1149
359
278
153
884
111
1178
021
469
338
641
091
630
120
725
mean
636
mean
687
mean
751
Discussion
The fact that the topical test formulation produced a higher mean liver copper level within the first three weeks would suggest that topical application can provide animals successfully with supplementary copper. The main problem assoc^ted; with the formulation was the toxicity at the site of application. /'v r *.. /
i •*. fo l J
«»7SCS7.H9»/JP/»t V) i- v" '
howamended
250153
Formulation 3 delivered 5 mgs of copper per kg. The maximum comparable rate iorA parenteral copper product is approximately 1 mg per kg. The dose rate for topically applied chemicals is typically greater than that for oral or parenteral formulations but not usually by a factor of 5 (e.g ivomec x 2.5). It may therefore be possible loxombine a lower dose rate (mg/kg) and increased volume to reduce the toxic effects without jeopardising the effectiveness of the treatment. /
In conclusion, the test product appeared to successfully raise livei/copper levels above those of the untreated controls. /
TRIAL 4 /
A trial was conducted was low blood selenium cattlgr Limousin heifers 12 months old). This trial compared the pour-on formulation (2) at i lower dose rate than in trial 2 with Se-Hypo. The results arc as shown in Table A./
Materials and Method /
The pour-on formulation (2) was administered at a rate of 6 mis per 100 kg. This effectively applies 30 mg per kg or selenium on the backline of cattle. Se-Hypo was administered at the rate of 2 mls^per 100 kg. This effectively supplies lOmg per 100 kg subcutaneously. /
The cattle were bled prior to the commencement of the trial and then placed in 3 groups on the basis of their hiood selenium levels.
1. Group contwfls (6)
2. Se-Hypa<7)
3. Formulation 2 of selenium (7)
The/Cattle were bled at 2, 4 and 8 weeks post treatment. The blood levels were monitored and the cattle were retreated in the treatment group nine weeks after the /commencement of the trial.
697SCS7.N94/JF/at
as amended 25 0 163
-12- COGNATE Nos.
The formulation delivered 5 mgs of copper per kg.The maximum comparable rate for a parenteral copper product is approximately 1 mg per kg. The dose rate for topically applied chemicals is typically greater than that for oral or parenteral formulations but 5 not usually by a factor of 5 (e.g ivomec x 2.5). It may therefore be possible to combine a lower dose rate (mg/kg) and increased volume to reduce the toxic effects without jeopardising the effectiveness of the treatment.
In conclusion, the test product appeared to successfully raise liver copper levels above 10 those of the untreated controls.
XRIAL4
A trial was conducted was low blood selenium cattle (Iimousin heifers 12 months old). 15 This trial compared the pour-on formulation (1) at a lower dose rate than in trial 2 with Se-Hypo. The results are as shown in Table 4.
Materials and Method
The pour-on formulation (1) was administered at a rate of 6 mis per 100 kg. This 20 effectively applies 30 mg per kg of selenium on the backline of cattle. Se-Hypo was administered at the rate of 2 mis per 100 kg, This effectively supplies lOmg per 100 kg subcutaneously.
The cattle were bled prior to the commencement of the trial and then placed in 3 groups 25 on the basis of their blood selenium levels.
1. Group controls (6)
2. Se-#ypo (7)
3. Formulation X of selenium (7)
The cattle were bled at 2, 4 and 8 weeks post treatment. The blood levels were monitored and the cattle were retreated in the treatment group nine weeks after the commencement of the trial.
•• - f • \
(;:;i n 2 OCT <338
Table 4
2;
4
START
FEB
FEB
MAR
MAR
7/1/94
9
26
31
CONTROL
Tag 15
260
300
210
340
520
Tag 16
240
220
200
290
460
Tag 21
200
200
290
320
410
Tag 24
240
250
300
400
410
Tag 29
240
250
190
370
490
Tag 33
240
260
310
310
450
Average
237
247
250
338
457
SELJECT
Tag 13
290
560
4P0
670
1000
Tag 20
230
580
550
590
960
Tag 23
220
550
540
1600*
1100
Tag 27
250
580
490
620
910
Tag 28
180
550
440
590
Tag 32
180
530
460
520
850
Tag 36
220
560
420
570
920
Average
224
559
483
593
957
FORMULATION 2
Tag 17
330
500
580
490
820
Tag 19
230
790
650
1200
Tag 22
230
550
500
530
930
Tag 25
290
650
520
660
1000
Tag 26
230
900
710
870
1200
Tag 30
230
670
400
830
920
Tag 35
210
770
630
740
1000
Average
250
690
557
681
1010
^Injected in error before bleeding (5
minutes)
NOTE: All units above ae whole blood selenium as nmol/1
SS7SCJ?.ll»4/J?/at
now amended
250163
- 14
TRIAL 5
A trial was conducted on twenty clinically healthy 18 months old Angys cattle.
Materials and Methods
The cattle were bled prior to the commencement of the trial aiyf then randomly placed in one of the following groups:
Group 1:
Test animals treated with our seleniunyf>our-on formulation # 2 (as described in Example 2)
(contains 5mg/ml selenium as sodium/&eJenate at the proposed label dose rate of l.om./50kg body weight)
Group 2:
Test animals treated with Se-Hypo (contains 5mg/ml selenium as sodium selenate at the label dose rate of 5nrf injection per cattle).
The cattle were bled at 4 and 12 W' Quality Management Laboratory Iflncoln.
post treatment and samples sent to the MAF
Assessment
Assessment was made on t£6 basis of selenium blood levels (nmol/1) of treated animals.
Results
The results are outlined in Table 5 and Figure 4.
Blood samples jvere blinded and selenium levels tested by MAF Quality Management Laboratory Lincoln.
Animals/Cheated with both our selenium pour-on and Se-Hypo obtained a rise in blood selenium levels when measured at 4 weeks post-treatment This rise was maintained and ^lightly increased at second testing (12 weeks) which indicates a long term benefit selenium pour-on and Se-Hypo treatments in selenium deficiency and related iseases in cattle.
6975C57.N94/J?/At
AS AMENDED
0 1
14' COGNATE Nos.
TRIAL 5
A trial was conducted on twenty clinically healthy 18 months old Angus cattle.
Materials and Methods
The cattle were bled prior to the commencement of the trial and then randomly placed in one of the following groups:
Group 1: Test animals treated with our selenium pour-on formulation #1 (as described in Example 2)
(contains 5mg/ml selenium as sodium selenate at the proposed label dose rate of 1.5m./50kg body weight)
Group 2: Test animals treated with Se-Hypo
(contains 5mg/ml selenium as sodium selenate at the label dose rate of 5ml injection per cattle).
The cattle were bled at 4 and 12 weeks post treatment and samples sent to the MAF 20 Quality Management Laboratory Lincoln.
Assessment
Assessment was made on the basis of selenium blood levels (nmol/1) of treated animals.
Results
The results are outlined in Table 5 and Figure 4.
Blood samples were blinded and selenium levels tested by MAF Quality Management Laboratory Lincoln.
Animals treated with both our selenium pour-on and Se-Hypo obtained a rise in blood selenium levels when measured at 4 weeks post-treatment. This rise was maintained and slightly increased at second testing (12 weeks) which indicates a long term benefit of our selenium pour-on and Se-Hypo treatments in selenium deficiency and related 35 diseases in cattle.
XT
A-
/o
M7S«7.m/JP/»t ' f> 0 ftp'" :
|rj y t J1"
>1
V, /J.-v-r 1
- /
250
Table 5
Blood selenium levels in cattle in nmol/1. Reference values are: Responsive < 130; Marginal 130-250; Adequate 250-2000 (MAF Quality, Lincoln)
Animal No.
Initial Results 8.4.
One month 12.5.
Three month 13.7.
31
1000
1420
1410
32
560
1120
1200
33
860
1370
1470
34
510
1060
960
610
1060
1130
36
500
1060
1380
•37
500
1180
1600
38
440
1260
1420
39
960
310
490
970
1180
Mean Selpor
643
1166
1305
STD
201
145
188
311
580
1220
1320
312
1060
313
380
1030
1440
314
930
1440
1810
315
830
1240
1300
316
490
317
570
1190
1320
318
560
960
1120
319
970
1530
1790
320
410
1010
1190
Mean Se-Hypo
678
1202
1411
STD
234
190
241
Animals 31-310 Selenium pour-on treatment Animals 310-320 Se-Hypo treatment
65is«j
Conclusion
The pour-on formulation when applied at the rate of 6mls per 100 kg gave blood 5 selenium levels that were similar in effect on low blood selenium cattle to the levels produced by treating cattle with Se-Hypo (see Figure 3).
Whilst these examples have been given as illustrative of the invention, the invention is not limited to the examples and other alterations and modifications can be made to the foregoing such as the addition of other adjunctive compounds that can be administered topically without departing from the scope of this invention as claimed.
30
€97SCS7>N94/JP/«t
[now amended]
1 6 3
WHAT WE CLAIM IS
1. A pour-on formulation containing a therapeutically effective amount of aj/ace 5 element in a pharmaceutical^ acceptable carrier.
2. A formulation as claimed in claim 1 wherein the trace element is selected from the group: selenium, copper, cobalt and iodine.
JO
A formulation as claimed in any one of the precedin^claims wherein the pharmaceutical carrier is an organic liquid.
A formulation as claimed in claims 1 and 2 wher^the pharmaceutical carrier is water or in combination v/ith water.
A formulation as claimcd in claim 3 or c}a\m 4 where the carrier is an alcohol, glycol or glycol ester.
6. A formulation as claimed in claim 3 where the carrier is selected from xylene,
/
7. A formulation as claimed in claim 3 or 4 where the carrier is a liquid carrier isopropyl myristate.
8. A formulation z limed in claim 3 or 4 where the carrier is an ester of a fatty acid.
A fo dation as claimed in claim 8 where the carrier comprises an alkylamide of a y acid.
AA formulation as claimed in claim 3 or 4 where the carrier is an ethoxylated block polymer.
A formulation as claimed in claim 1 wherein the formulation is a non-aqueous formulation containing one or more oxides of selenium or copper or cobalt dissolved in a solvent selected from the group: ethanol, monopropylene glycol,
July 1936/6975ICLM.795/hc/iv
-8 JUL 1996
{ NOW AMENDEPii
250163
and butyl dioxitol.
12. A formulation as claimed in claim 11 wherein the trace element is presen^ selenium dioxide or selenium trioxide.
13. A formulation as claimed in claim 1 wherein the formulation isjm aqueous formulation containing water and a wetting agent.
14. A formulation as claimed in any one of the preceding claijtfs further including at least one endoparasiticide.
. A formulation as claimed in any one of the preceding claims further including at least one vitamin.
16. A method of raising the serum level^of a trace element in animals by topical application to the animal of a poison formulation as claimed in any one of the preceding claims.
17. A method as claimed inydaim 8 wherein the trace element is selenium.
18. A process for thaf>reparation of a pour-on formulation as claimed in any one of claims 1 - 15 substantially as herein described with reference to the examples.
JAMES W PIPER & CO Au^rneys for the Applicant (hmont Holdings Limited
4 ,
6975QCS7.596/HC/jq
AS AMENDE
17
250163
COGNATE Nos.
Claims (6)
1. A pour-on formulation containing a therapeutically effective amount of a trace element in a pharmaceutically acceptable carrier, wherein the formulation is a non-aqueous formulation containing one or more oxides of selenium or copper or cobalt dissolved in a solvent chosen from the group consisting of ethanol, monopropylene glycol and butyl dioxitol.
2. A pour-on formulation as claimed in claim 1 wherein the trace element is present as selenium dioxide or selenium trioxide, or sodium selenate.
3. A pour-on formulation as claimed in any of the preceding claims further including at least one endoparasiticide or at least one vitamin.
4. A method of raising the serum levels of a trace element in animals by topically applying to the animal a pour-on formulation as claimed in any one of claims 1 to 3.
5. A pour-on formulation as claimed in claim 1 substantially as herein described with reference to the examples.
6. A method of raising the serum levels of a trace element in an animal by topically applying to the animal a pour-on formulation as claimed in claim 1, substantially as herein described with reference to the examples. JAMES W PIPER & CO Attorneys for the Applicant Ashmont Holdings Limited rp\6975ecl4o98 .,\s /<C | 0 2 0« B3J *j
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ25016393A NZ250163A (en) | 1993-11-08 | 1993-11-08 | Pour-on application of trace metals to animals |
CA002175830A CA2175830C (en) | 1993-11-08 | 1994-11-04 | Application of trace elements to animals |
US08/334,223 US5543432A (en) | 1993-11-08 | 1994-11-04 | Application of trace elements to animals |
PCT/NZ1994/000126 WO1995013080A1 (en) | 1993-11-08 | 1994-11-04 | Application of trace elements to animals |
EP94931711A EP0728008A4 (en) | 1993-11-08 | 1994-11-04 | Application of trace elements to animals |
AU80685/94A AU692802B2 (en) | 1993-11-08 | 1994-11-04 | Application of trace elements to animals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ25016393A NZ250163A (en) | 1993-11-08 | 1993-11-08 | Pour-on application of trace metals to animals |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ250163A true NZ250163A (en) | 1996-09-25 |
Family
ID=19924560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ25016393A NZ250163A (en) | 1993-11-08 | 1993-11-08 | Pour-on application of trace metals to animals |
Country Status (1)
Country | Link |
---|---|
NZ (1) | NZ250163A (en) |
-
1993
- 1993-11-08 NZ NZ25016393A patent/NZ250163A/en not_active IP Right Cessation
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