TESTING OF PUREBRED DAIRY COWS.

New Zealand Journal of Agriculture, Volume XL, Issue 3, 20 March 1930, Page 159

TESTING OF PUREBRED DAIRY COWS.

REVIEW OF THE NEW ZEALAND CERTIFICATE-OF-RECORD

SYSTEM. IN 1929

W. M. Singleton,

Director of the Dairy Division, Wellington

After having shown a steady falling-off each year since 1924, entries for Certificate-of-record Test are now again on the increase. Twentysix more cows qualified for certificate in. 1929 r than in 1928, and figures for the peak month, of the current-season show 864 cows on test on the farms of 272 breeders, as compared with .655 cows and 225 breeders for-the-highest month of last season. On a percentage basis, this increase is by no means insignificant, and ? further, there is reasonable prospect, of the advance being sustained for another season 'at least. • . - ; ; .

As has been frequently stated, one of the principal objects in introducing the Certificate-of-record Test was to provide ’sires for ordinary dairy herds, sires which, because they are registered purebred and with C.O.R. butterfat - record pedigrees, would-be of .the greatest possible value in herd-building and in improving the yield of our average dairy cow. The support accorded the C.O.R. system is necessarily regulated to 1 a considerable extent by the demand for bulls from C.O.R. cows, as the breeder of purebred - dairy stock is largely dependent.. upon . sales for his income. For some years past the prices offered for butterfat-backing C.O.R. bulls have hardly warranted any . extensive. C.O.R. testing programme on the part of breeders. The demand', however, is. steady, and from a survey of recent sales results it is probably slightly improving. No. doubt the marked advance of group herd-testing and its valuable educational service is having a favourable effect on the general position.

■ While the number of cows qualifying for certificate of record each year may be small in comparison with the total number of registered purebred dairy cows in the Dominion, there is perhaps a tendency to underestimate the number of bulls from C.O.R. cows available for service. The cumulative effect, which is considerable, must not be overlooked. We have taken out roughly an estimate of the number of bulls from C.O.R. cows which should be alive and available for service next season —1930-31. The estimate has been based on cows which have received certificates or have failed other than on production. Adjustment for age was needed in the case of the mature class, which includes cows five years old or over at commencement of test, and for purposes of the estimate the age of the average tested mature cow was taken as seven years. • The other classes are based on the exact year of age, and thus no adjustment was necessary. The maximum age of the average cow was taken at nine years, or the birth of eight calves. A bull was assumed to be fit for service at a minimum of one year and a maximum of nine years. Actual C.O.R. records were taken to the end of 1929, but an estimate was necessary as to the number of cows of those at present on test which will qualify during the present calendar .year.. It has also been supposed ..that half the calves will be bull calves. The result comes out at 13,737

bulls, from yearling to not more than nine years of age, in the spring of 1930. Obviously when a cow completes a certificate-of-record test her performance affects all calves which have been born to her as well as those calves which may yet be born. ~ '

The Official Herd-test also' provides for recording the yield of registered purebred dairy cows, and, while a detailed survey of this system would be out of place in the present review, it may be stated that. working along similar lines on this test, which is now in its third season, and assuming a cow to be tested when she has been on test 180 days (six months) or more, it is found that 6,888 bulls from O.H.T. cows should be available for service in the spring of 1930. Added to the total of 13,737 bulls from C.O.R. cows, this makes the impressive grand total of 20,625. While, as previously mentioned, ■certain assumptions were necessary, and while some of the hypotheses may be open to difference of opinion, the result of the investigation ■can probably be taken as a reasonable indication of the' position. Mortality would need to be considered, and also deformity, but, on the other hand, the estimate is perhaps conservative.

There has been of late a revival of interest in the question of a ten-months class for C.O.R. cows, and it is probable that the additional ■class will be inaugurated next season. There is much to be said on the subject, both for and against, and we hope to deal fully with the matter at a later date.

Some consideration has also been given to the question of dispensing with the butterfat standards for C.O.R. cows, it having been suggested that a certificate be issued to every cow which qualifies on the present rules other than those pertaining to quantity of butterfat. The elimination of the minimum production requirement did not, however, meet with the approval of all the breeders’ associations. Moreover, the proportion of cows which fail to qualify on production is very small. It has therefore been decided to. make no change in the present system in the meantime.

A matter which has given a certain amount of concern is the increase in the number of cases of lost milk- weights. The most common causes of such losses have been the destruction of the shed sheets by cows or calves, or the sheets have been torn off and blown away by the wind. Breeders should be particularly careful to see that > the shed record sheets are kept in a safe place, as no allowance •can be made for lost weight-records.

Owing to the demand on the limited space of the Journal it may be necessary to discontinue the publication in it of the C.O.R. lists throughout the year. The records now receive publicity each month through the official organs of the various breeders’ associations, and it is considered that the position might be satisfactorily met by the publication once a year of an official pamphlet containing a complete list of particulars of certificates issued during the year, together with the annual review from the Journal. This would be sent free of cost to all C.O.R. testing breeders, and also made available to other interested persons.

The average production of all C.O.R. cows granted [certificates during the calendar year 1929 works out at 469-95 lb. butterfat. The

averages for the preceding four years were 467-92 lb. in 1925, 463-87 lb. in 1926, 469-56 lb. in 1927, and 469-53 lb. in 1928.

FIRST-CLASS CERTIFICATES ISSUED

From the. commencement of the C.O.R. system to the end of 1929 first-class certificates of record have been issued to 6,604 cows. In 1929 417 first-class certificates were issued to cows qualifying for the first time, and 74 to cows which had previously gained a certificate, making a total of 491 certificates for the year. Particulars of certificates issued • during the past two years are given in the following table :

Table 1.

SECOND-CLASS CERTIFICATES.

The number of second-class certificates issued . during the year under review totalled twenty-eight, as compared with twenty-two for 1928. The twenty-eight certificates went to twenty-four Jerseys, three ; Friesians, and one Ayrshire respectively. The Jerseys averaged 445-52 lb. butterfat, the Friesians 612-97 lb., and the Ayrshire 529-35 lb. As most readers will know, the rules for the two classes of C.O.R. are identical, except that for a first-class certificate a cow must drop a calf within 455 , days (fifteen months) after date of calving for commencement of test, whereas for a second-class certificate an extra thirty days is allowed, making 485 days, or, roundly, sixteen months between the calvings.

Jerseys.

Class-leaders

The year under review brought forward no records which seriously challenged the existing class-leaderships of the Jersey breed, the list of highest producers having now remained unaltered since 1927. The list is repeated in Table 2 (next page).

Jersey Class Averages

The Jerseys certificated in 1929 numbered 367, with an average production of 455-51 lb. butterfat. This represents a decrease of 1-41 lb. from the 1928 average of 456-92 lb. for the same number of cows. From Table 3it will be seen that all classes except the junior

two-year-old show an increase over the previous year. Seeing,- however, that the junior two-year-olds' are in an overwhelming majority numerically, it is obvious that a decrease .in average production for this class must have an inimical influence on the average for the whole breed.

The following table supplies class averages for 1929 and 1928 :■ —

The total number of certificates issued.’to Jersey cows from the commencement of the C.O.R. system in 1912 to the end of 1929 has now passed the five-thousand mark, the exact figure being 5,207, and although the average butterfat production for all' junior two-year-olds to date has lost a little . ground since the end of. 1928 (0-27 lb.) the breed as a whole has shown an advance of 1-41 lb., the average for the 5,207 certificates being 446-97 lb.

An interesting point connected with production of the Jersey breed is the marked consistency of the. average butterfat test of the milk. To the end of 1929 this came out at 5-55 per cent., and for many years it has not varied more than o-oi from that figure. Moreover, the latest reviews which have come under our notice indicate that for the Island of Jersey, England, the United States, and New Zealand the average test for the Jersey breed is within o-or of 5-55 per cent. This surely points to a remarkable stage of standardization in the breed. .

The averages, class by class, of all certificates issued to Jersey cows since ' the commencement of the C.O.R. system are given in the following table :

Jersey C.O.R. Bulls.

For the benefit of those who may not be conversant with this part of the system we repeat the explanation that by a "C.O.R. bull ” is meant a bull which has sired at least four certificate-of-record daughters, each from a different dam. The New Zealand Jersey Cattle Breeders’ Association makes a special classification under the heading of “ Champion Butterfat Bulls,” but the conditions relating to this class have recently been changed by the Association. Under the original conditions a bull was considered to be eligible for the Champion Butterfat class when he had sired at least five daughters from different dams, and each daughter having doubled, her minimum butterfat requirement for certificate. Under the conditions which are to apply in future, however, it is required that bulls have five or more daughters (each from a different dam), which, under first-class C.O.R. conditions, produce 520 lb. butterfat when starting under test up to three years of age, 580 lb. when starting between three and four years old, 640 lb. when starting' between four and five years of age, and 700 lb. when five years old or over.

On account of the rapidly increasing number of C.O.R. bulls it has been found necessary to discontinue the publication of the list of names and . particulars in this annual review, and merely to give a statistical summary. Details are always available from the respective secretaries of the breeders’ associations, or from the office of the Director of- the Dairy Division, Wellington. Comprehensive particulars are also supplied in the year-books issued by the Friesian and the Jersey Associations as regards their own breeds. . .. .

Some 320 bulls have now qualified for the Jersey C.O.R. list. ■ The number of bulls which added to their list of C.O.R. daughters during the year was sixty-one, while twenty-eight bulls newly qualified for the class. The total number of champion butterfat bulls to date under the original rule is fifteen, and nine of these are eligible under the new conditions.

Friesians.

Class-leaders.

The list of Friesian class-leaders remains unaltered, and, as in the case of the Jersey breed, no records were made during 1929 which , at any stage of the test looked like superseding those of the present champions. The Friesian breed has remarkably good leadership performances to its credit, and it must be realized that any animal which can displace the present title-holders will be indeed a champion. The past year has been below the average in the matter of high producers, this applying to practically all the breeders.

The list of class-leaders is repeated as follows :

Friesian Class Averages. - ■ ' -- There have been some rather marked ups and downs in the Friesian class averages for the past two years, and the wide variations are obviously due to the influence of individual performances, the

majority of the seven classes being very small. Even so, however, it is noticeable that the ages are more evenly distributed in 1929 than in 1928. Eighty-six Friesians were certificated in 1929, as compared with seventy-nine in the previous year. The average Friesian in 1929 produced 534-51 IK butterfat, a very creditable increase over the 1928 figure of 527-97 lb. The class averages for the breed for the past two years are as follows :

Friesian cows in New Zealand have now received 1,743 certificates since the inauguration of the system in 1912. The average production to date works out at the substantial figure of 479-06 lb. butterfat, an increase of 2-88 lb. over the average to the end of 1928. Also, the average milk-yield has gone up almost 90 lb. The figures, class by class, are given in the following table :

Friesian Bulls.

Friesian C.O.R. bullsthat is to say, Friesian bulls which have four or more C;O.R. daughters,. each from a different dam —now total ninety-nine, of which number four qualified for their place during 1929. The number which added to their C.O.R. daughters during the year, or newly qualified for the C.O.R. class, was twenty-three.

Milking Shorthorns.

Class-leaders. Although there were no changes in the Milking Shorthorn classleaderships during the year, some good performances were recorded. The senior two-year-old Dominion Althea of Ruakura, bred and tested at the Ruakura Farm of Instruction, Hamilton, gave 537-93 lb. butterfat, which is less than 5 lb. behind the record of the present class-leader. The mature class was a strong one, pride of place for the year being won by Mr. T. W. Wardlaw’s Riverdale Florrie 2nd, with 761-17 lb. butterfat. Creditable records .were also made by the same owner’s Riverdale Florrie 3rd and Riverdale Grace 3rd, with 681-09 and 629-36 lb. respectively. Mr. Wardlaw (whose farm is at Waimana, Bay of Plenty) thus has the distinction of having tested the three highest-yielding Milking Shorthorns for the past year. The list of class-leaders is repeated in Table 8.

Milking Shorthorn Class Averages.

It is pleasing to record an increase of fifteen certificates for the Milking Shorthorn breed, there having been twenty-six cows certificated in 1929, compared with eleven, in 1928. A list of class-averages is of little value, as fourteen of the twenty-six cows fall in the mature class,, and the remaining six classes of the seven into which this breed is Subdivided contain only one, two, or three records. The average for the breed, however 466 lb. butterfat —is very satisfactory, although showing a decrease from the preceding year’s average of 480-96 lb. Details of the class T averages for 1929 are as. follows :

The averages, class by class, of all certificates issued to Milking Shorthorn cows since the commencement of C.O.R. testing for this breed in 1914 are given in the following table : •

Milking Shorthorn Bulls.

The number of C.O.R. bulls of this breed remains as at the end of 1928, no bulls having newly qualified during the past year. There are at present eight Milking Shorthorn bulls on the C.O.R. list, two of these having added to their C.O.R. daughters during the year under survey.

Ayrshires.

Class-leaders.

One change has taken place in the Ayrshire class - leaderships, this occurring in the three-year-olds. Mr. A. M. Weir’s Ivanhoe Stylish Daisy, with 574-09 lb. butterfat, yields place to Fair Lass of Greenbank, whose fine record of 639-85 lb. increases the leadership of the class by over 65 lb. She was bred and tested by Mr-. W. Moore, of Homebush, Masterton, and is but one of several outstanding individuals raised by Mr. Moore. Fair- Lass of Greenbank is from a long line of well-known Ayrshire ancestry, production being a strong feature of the pedigree. The ability to reproduce production-capacity is also apparent, and this, after all, is as important in the practice of breeding as the making of high records. Fair Lass of Greenbank is line-bred to the imported bull Dominion Netherton Good Bonus, who appears on both sides of her pedigree and was the paternal ancestor of many fine Ayrshires bred by the New Zealand Government. Fair Lass of. Greenbank also traces to Craigellachie, said to . have been one of the finest Ayrshire bulls ever imported into New Zealand, and sire of Alexandra of Waipapa, who; with 591-16. lb. butterfat, was for many years the highest C.O.R. cow of the breed. The class-leaders for the Ayrshire breed are set out in Table 11 (next page).

Ayrshire Class Averages.

Eight Ayrshire cows received first-class certificates during 1929, as compared with five in 1928. Two of the eight cows were in the three-; year-old class, their average production being 470-65 lb. butterfat. One four-year-old gained a certificate for 526-83 lb. butterfat, while five mature cows averaged. 476-74 lb. All eight cows averaged 481-48 lb., as compared with an average of 520-02 lb. for the five cows certificated in the preceding year.

The averages, class by class, for all certificates issued to Ayrshire cows since the commencement of C.O.R. testing in 1912 are supplied by the following table : •■ ■■ •

Ayrshire Bulls.

There have been no additions during the year to the list of Ayrshire C.O.R. bulls. The list numbers seven, and only two of these bulls added to their C.O.R. daughters in 1929.

Red Polls.

Only three Red Poll cows gained, certificates in the year under review, and two of those had been granted certificates previously, so that only one cow was really added to the . C.O.R. list of this breed. Of the three cows mentioned, one, Wayward 6 B No. I, with a C.O.R. for 536-50 lb. butterfat, becomes leader of the mature class, replacing Dominion Sylph (505-84 lb.), a cow bred and tested at the Central Development Farm, Weraroa. Wayward 6 B No. 1 is owned by Mr. G. S. Young, of West Plains, Invercargill, and is the holder of the

premier place in three of the four classes into which the breed is subdivided. It is quite obvious from a survey of this cow’s performances that she is one of the leading matrons of the breed. The class-leaders for the Red Poll breed are now as follows :

Red Poll Class ■ Averages

The average production of the three Red Polls certificated in 1929 -—one in the two-year-old, one in the three-year-old, and one in the mature class—was 384-41 lb. butterfat. The averages, class by class,

for all certificates issued to Red Poll cows since the commencement of the C.O.R. testing for this breed in 1918 . are shown in the following table : ■ -

Red Poll Bulls.

Three Red Poll bulls have qualified for the C.O.R. class so far. The past year brought no changes, to the list for this. breed.

Guernseys.

One Guernsey cow, Dominion Flora’s Pride, gained a certificate during the year, with 593-29 lb. butterfat from 10,339-4 lb. milk, in 365 days, her age -at commencement of test being 3 years 361 days. As the prefix “..Dominion” implies, this cow is owned by the New Zealand Government. * She was tested at the Ruakura Farm of Instruction, Hamilton, and is the second Guernsey to be granted a C.O.R. in New Zealand. '

The friendly co-operation and valued assistance of the secretaries of the various breeders’ associations has been continued, and we again desire to make cordial acknowledgment to Mr. W. M. Tapp (Jersey Cattle Breeders’ Association) ; Mr. J. P. Kalaugher (Friesian Association) ; Mr. A. W. Green (Milking Shorthorn Association) ; Mr. R. H. Spencer (Ayrshire Cattle Breeders’ Association) ; r and Mr. L. J. Wild (Red Poll Cattle Breeders’ Association). . ;

...Salting of Cheese.-t- Some:experiments on the . influence of the method of salting upon.changes in cheese have been made in Sweden. It was found that salting immediately after the whey was drained retarded the growth Of bacteria, and bacteria in such cheese developed more slowly than in cheese not salted for three hours. The percentage of milk-sugar decreased and the percentage of acidity increased much more slowly in the cheese from the early-salted curds. Curds salted later Stood more salt without becoming hard, brittle, and crumbly. One of the Canadian precepts respecting salting is, “Hold the curd until you believe it is ready for salting," and then give it a further.fifteen minutes.” This practice is conducive to a . greater, acidity in the cheese without showing in the body of the cheese as excess acid, and is considered to be conducive to greater closeness of body. This is particularly necessary in the warmer months, with their higher temperatures in the average curing-rooms.— Dairy Division.

* Representing 464 cows, one cow having qualified for two certificates within the year.

*No additions in 1929.

Breed. . 19291928. . .. Ordinary. Repeat. Total. . Ordinary. Repeat. Total. Jersey .. 315 52 ■ . ■ 367 328 39 367 Friesian . . ■ 68 18 86 66 13 79 Milking Shorthorn .. 26 26 IO I 11 Ayrshire . . . . 6. 2 8 3 2 - -5 Red Poll . . ... 1 • 2 ' 3 2 2 Guernsey 1, 1 1 1 < . Totals .. 417 74 491 410 55 465*

Name of Cow and Class. ' Tested by Age at Start of Test. Fat required Certificate Yield for Season. • Days Milk.' Butterfat. Junior Two-year-old. Ivon dale Oxford Lass R. S. Tuck, Waharoa. . Yrs. dys. 1 33-? lb. 240-5 365 lb. 12,107-7 lb. '. 73 1-2 ■ Senior Two-year-old. Ivondale Golden Rainbow P. J. Petersen, Waitara 2 311 271-6 365 . 12,962-2 768-46 Three-year-old. Ivondale Golden Lass ■ P. J.. Petersen, Waitara 3 312 308-2 .365 14,434-8 965-0.1 Four-year-old. Reston Flower . G. E. Yelchich,Waiuku 4 64 319-9 .365 14,679-2 814-95 Mature. Holly Oak’s Annie. . W. T. Williams, Pukeliou (deceased) 5 . 9 35o-o 365 18,522-7 1,056-49

Table 2.

Class. Number of Cows. Average Yield for Season. Days in Milk. Milk. Butterfat. 1929. • lb.' lb. Junior two-year-old 164 342 6,930-3 ' 387-64 Senior two-year-old 29 352 8,202-4 468-42 Three-year-old ■ . . 45 347 ' 8,850-5- - 495-46 Four-year-old . . 44 342 - 9,403-9 525-45 Mature ■ . . . . 1 85 34° , 9,630-7 ; 524-68 1928. Junior two-year-old .. 174 ' 350 7,385-8 415-60 Senior two-year-old ' 33 • 349 ,046-0 455-06 Three-year-old .. . •58 339 8,585-5 481-87 Four-year-old ' ./ .. 37 348 9,108-6 • 498-11 Mature .. 65 339 9,396-4 522-78.

Table 3.

Class. ' . s’, Number of.Certificates. Average Yield for Season. Days in Milk. Milk. Butterfat. Junior two-year-old 2,075 345 lb. ■ ' ' 6,987-4 lb. 390-88 Senior two-year-old 549 344 7.741-5 435-92 Three-year-old . . 795 342 8,397-1 467-46 Four-year-old 508 345 8, 892.7 493-50 Mature .... . . . ■ . . 1 ,280 345 9,329-7 5ii-45 All . . ' 5.207 344 8,043-8 ' 446-97

Table 4.

Name of Cow and Class. Tested by . Age at Start of Test. Fat torequired Certificate. Yield for Season. Days Milk. Butterfat. Junior Two-year-old. Monavale Queen Bess T. H. Richards, Cardiff Yrs.dys 216 . lb. 242-1 365 lb. 20,501-1 lb. 74O-5O Senior T wo-year-old. Pareora Echo Blossom T. Sheriff, Clandeboye 2 223 262-8 365 22,671-9 819-81 Junior Three-year-old. Monavale Queen Bess T. H. Richards, Cardiff 3 56 282-6 . 365 609-3 800-18 Senior Three-year-old. Manor Beets Daughter 2nd of Ashlynn C. A. Hopping, Palmerston North 3 296 306-6 365 18,733-9 863-51 Junior Four-year-old. Westmere Princess Pietertje J ohn Donald, Westmere 4 156 329-1 365 24,199-0 939-78 Senior Four-year-old. Bain Held 27th . ■ C. H. Potter, Pukerau 4 351 348-6 365 23,203 3 910-74 Mature. Alcartra Clothilde Pietje Vernon Marx, Mangatoki 7 355 350-0 365 3I,3I2-5 1,145*24

Table 5.

Class. Number of Cows. Average Yield for Season. Days in Milk. Milk. Butterfat. ■ 1929 lb. ■ lb. ' Junior two-year-old .. •_ 25 \ 347 . 13,631-1 477-98 Senior two-year-old . . .' 12 353 . ■ 13,458-9 .. 477-34 Junior three-year-old . ■ 4 359 17,549-8 ; 598-48 Senior three-year-old . . 10 ‘ 324 14,774-2 ' 527-45 Junior four-year-old 5 356 17,296-2 601-58 Senior four-year-old 10. y - 328 15869-8 , 564-49 Mature .. . . • 20 354 17,675-6 598-47-1928. ' Junior two-year-old . . 27 339 12,586-7 430-79 Senior two-year-old .. 13 7 -351 13,668-6 490-17 Junior three-year-old .. 5 320 . 12,345-1 449'25 Senior three-year-old ■ ■ . . . 8 362 300-8 602-37 Junior four-year-old :. . : 4 ' 365 17,406-8 604-63 Senior four-year-old r.. 4 361 17,122-1 622-87 Mature i .. .. . . 18 352 18,867-1 - .651-74

Table 6.

Class. Number of Certificates. Average Yield for Season. Days in Milk. Milk. Butterfat. Junior two-year-old 500 345 1 b. 11,490-6 lb. 406-67 Senior two-year-old 228 346 ■ 12,406-0 440-07 Junior three-year-old 162 34 1 I3,229-4 464-69 Senior three-year-old 164 335 .I3.732-5 . 491-15 Junior four-year-old . . 105 344 I4.938-.7 526-09 Senior four-year-old 105 345 I5.653-9 - 544-76 Mature .. 479 340 I5.724-5 549-18 All 1.743 342 13,604-9 479-06

Table 7.

Name of Cow and Class. Tested by Age at ■ Start of Test. Fat required for Certificate. Yield for Season. Days. Milk. Butterfat. Junior Two-year-old. Matangi Quality 4th Ranstead Bros., MaYrs.dys. 2 109 lb. 25I-4 365 lb. 14,572-8 lb. 591-89-Senior Two-year-old. Matangi Quality 5 th tangi Ranstead Bros., Ma2 204 260-9 365 11,752-8 542-66-Junior Three-year-old. Matangi Quality 4th tangi ' Ranstead Bros., Ma3 153 292-3 365 16,281-4 678-02 Senior Three-year-old. Matangi Ruth 2nd . . tangi Ranstead Bros., Ma3 304 3O7-4 365 14,032-7 747-86-Junior Four-year-old. . Matangi Matilda 4th tangi Hon. Mrs. E. J. Blyth, 4 0 3I3-5 358 14,640-2 630-38 : Senior Four-year-old. Matangi Ruth 2nd . . Kohimarama Ranstead Bros., Ma4 355 349-0 340 11,670-3 644-90-Mature. Glenthorpe Lady tangi A. J. Melville, Buckland Mature 35o-o 365 20,136-2 856-85

Table 8

Class. Number of Cows. Average Yield for Season. Days in Milk. Milk. Butterfat Junior two-year-old 1929. 2 309 lb. 9,466-5 lb, 400-67 Senior two-year-old 3 342 10,491-7 471-25 Junior three-year-old ... .2 313 10,468-3 433-41 Senior three-year-old .. ' I 339 8,872-9 h 343’29 Junior four-year-old 2> 332 .12,132-4 468-17 Senior four-year-old . . 2 ■ 335 8,645-5 351-19 Mature • . . . . . . 14 337 12,287-0 504-72

Table 9

Class. Number of Certificates. Average Yield for Season. Days in Milk. Milk.' Butterfat. lb. lb. Junior two-year-old . . 49 349 • lb. 8,488-0 lb. - 348-29. • Senior two-year-old 360-96 Senior two-year-old 27 2/ 346 346 8,731-8 8,731-8 360-96 Junior three-year-old . . • 22 333 9,594'6 383-88 Senior three-year-old . . . 23 342 10,549-9 446-79 Junior four-year-old . . . . 20 347 11 ,008-1 443-34-Senior four-year-old •.' . . 26 ' 343 " ' 11,612-3 457-94 Mature . . .. 241 340 11 ,662-6 466-58 All 408 . 342 10,877-8 438-12,

Table 10.

Name of Cow and Class. Tested by ■' Age at ■ Start of Test. T5 <D <D Yield for Season. Fat required for Certificate. Yield for Season. Days. Milk. Butter- .... fat. Two-year-old. Fair Maid of Green W. Moore, Homebush Yrs. dys. 2 27 lb. 243'2 365 lb. 12.281-3 lb. 673-56 bank W. Moore, Homebush Yrs.dys. 2 27 lb. 243’2 365 . lb.' ' 12,281-3 lb. 673-56 Three-year-old. Fair Lass of GreenW. Moore, Homebush 3 306 307 5 365 16 no 4 639’85 bank W. Moore, Homebush 3 366 307 5 365 16,11'0 4 639 - 85 . Four-year-old. Ivanhoe Fancy 1 . A. M. Weir, Menzies 4 308 344’3 365 14,207-7 7I3-93 Ferry 4 3b8 344-3 365 14,207-7 7I3-93 Mature. Floss of Braeside .. Ferry W. Moore, Homebush .. .7. 287. 35o-o 365 20,305-5 832-72

Table 11

Class. Number of Certificates. Average Yield for Season. Days in Milk. Milk. Butterfat. lb. lb. Two-year-old* 51 342 lb. 8,702-2 . lb. 357-96. Three-year-old .. . . 32 345 9.947’9 4 o 6-57 Four-year-old .... ■ .. 24 348 . 11,229-5 458-54 Mature .. .. . . 99 347 11,956-6 487-04 All 206 346 754-2 439’26 . * No additions in 1929.

Table 12

Name of Cow and' Class. Tested by Age at Start of Test. Fat forequired Certificate. Yield for Season. Days Milk. ' Butterfat. Two-year-old. Wayward 6th B No. i G. S. Young, West Yis.dys. lb. lb. lb. . Wayward 6th B No. i G. S. Young, 2 188 259'3 365 11,228 0 5ID42 Plains West Yis.dys. 2 188 lb. 259'3 365 lb. 11,228 0 lb. 511'42 Three-year-old. Dominion Gold Top. . Central Development Dominion Gold Top. . Central Development 3 3° 2 307-2 365 9.49I-25 459-46 Farm, Weraroa 3 302 307'2 365 9,491-25 459'46 Four-year-old. Wayward 6th B No. i G. S. Young, West 4 297 343’2 365 13,2900 580-05 Plains West 4 297 343'2 365 [3,2900 580-05 Mature. Wayward 6th B No. i G. S. Young, West 6 349 350-0 36.5 11.404-8 536-5O Plains West 6 349 350-0 36.5 II 404 8 536 5°

Table 13.

Class. ■ Number of . Certificates. Average Yield for Season. Days in Milk. . Milk. Butterfat. Two-year-old ... . . ' 36 . 343 lb. 7.542-4 lb. 333-25 Three-year-old . . ... 13 346 7,881-1 343-17 Four-year-old* . . ■ . . 6 343 . 9.909-1 425-86 Mature . 19 333 10,047-7 427-38 All .-. ' .. 74 34i 8,437-0 366-67

Table 14