Dairy Herd Improvement Letter

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Dairy Herd Improvement Letter

Author : Anonim
Publisher : Unknown
Page : 548 pages
File Size : 50,7 Mb
Release : 1954
Category : Cattle
ISBN : UVA:X030346817

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Dairy Herd Improvement Letter by Anonim Pdf

Dairy Herd Improvement Letter, Vol. 53 (Classic Reprint)

Author : U. S. Agricultural Research Service
Publisher : Forgotten Books
Page : 316 pages
File Size : 40,9 Mb
Release : 2018-01-09
Category : Business & Economics
ISBN : 0428641598

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Dairy Herd Improvement Letter, Vol. 53 (Classic Reprint) by U. S. Agricultural Research Service Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 53 Table 2 shows errors and conflicts noted in 1976 rather than the number of records in error. As many as four errors or conflicts or both may be coded for a single record. Table 2 shows that missing identification numbers for sires of grade cows caused rejection of records. The next most frequent cause of rejection - was that the cow number was all zeros. Next, with a loss of records, was conflicting or questionable birth date. The records rejected during the main edit are returned to the appropriate processing center for correction. Increased care in identifying (including the reporting of sire and dam numbers) and reporting all animals in each herd would greatly increase the number of records used for bull and cow evaluation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 59: May 1983 (Classic Reprint)

Author : U. S. Agricultural Research Service
Publisher : Forgotten Books
Page : 20 pages
File Size : 49,7 Mb
Release : 2018-01-08
Category : Business & Economics
ISBN : 042810665X

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Dairy Herd Improvement Letter, Vol. 59: May 1983 (Classic Reprint) by U. S. Agricultural Research Service Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 59: May 1983 Among official records, percent were unusable because of termination code 9, down from percent for 1981. (termination code 9 indicates that records should not be used for genetic evaluations because production information is not reliable.) Nearly 42 percent of official records had missing sire identification, which was the primary reason for exclusion of official records. Only percent of official records were excluded because of errors. Counts for records with missing sire identification or errors cannot be compared with counts for 1981 because of a change in editing procedures in 1981. About percent of official records were excluded because of conflicts, down from percent for 1981. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 54

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 28 pages
File Size : 45,8 Mb
Release : 2017-11-19
Category : Business & Economics
ISBN : 0331437597

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Dairy Herd Improvement Letter, Vol. 54 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 54: December, 1978 Tab1e 1 shows the ranking of States by percentage of usab1e records for 1974 through 1977. For 1974, the percentage ranged from to By 1977, the range was from to severat things need to be said about the percentages. The percentage is ca1cu1ated on fewer than 100 records, and the next highest percentage is The 1ow percentage of usab1e records in severa1 States is probab1y due to the increase in the number of cows that have been put on production testing in the 1ast 2 years. When 1arge numbers of cows are entered on test at the same time, it is very Tike1y that many of the cows are not identified by sire. It wou1d be beneficiat both to dairy farmers and to the research effort for more cows to be identified by sire. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 56

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 22 pages
File Size : 42,8 Mb
Release : 2019-02
Category : Business & Economics
ISBN : 0331394820

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Dairy Herd Improvement Letter, Vol. 56 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 56: October 1980 These requirements were used for the Summer 1980 Sire Summary. Details such as minimum birth dates and perhaps minimum percentage increases in table 1 can be expected to change. The birth dates will probably increase annually by at least 1 year. The amount of information required for releasing initial summaries also may be increased. The possibility of more stringent requirements emphasizes the advisability of wide initial sampling. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 27

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 934 pages
File Size : 47,9 Mb
Release : 2017-10-30
Category : Electronic
ISBN : 0265979595

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Dairy Herd Improvement Letter, Vol. 27 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 27: February, 1951 0000000 000000000000 1 -000000000000 000000000000 000000000000000000000 l 00000000000000000. 00000000000000000 0000000000000000 0000000009000000000. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, October 1984, Vol. 60

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 26 pages
File Size : 52,9 Mb
Release : 2018-01-12
Category : Business & Economics
ISBN : 0428946941

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Dairy Herd Improvement Letter, October 1984, Vol. 60 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, October 1984, Vol. 60: Changes in Genetic Evaluation Procedures for January 1984; Counts of 305-Day Lactation Records Excluded From Genetic Evaluations for 1983; State and National Standardized Lactation Averages by Breed for Cows on Official Test, Calving in 1982 Among official records, percent were unusable because of termination code 9, down from percent for 1982. (termination code 9 indicates that a record should not be used for genetic evaluations because production information is not reliable or the record did not conform to Official Dairy Herd Improvement Rules.) Approximately 40 percent of official records had missing sire identification, which was the primary reason for exclusion, down from approximately 42 percent in 1982. Only percent of official records were excluded because of errors, the same as for 1982. The number excluded because of errors varied considerably among States. Missing birth dates and missing animal identification were the primary causes of errors for States with large numbers of records with errors. About percent of official records were excluded because of conflicts, down from percent for 1982. If a record was not used in computing genetic evaluations for a reason other than conflict, such as missing sire identification, only that record was excluded. However, when a record was compared with other records for the same cow and a conflict, such as differing birth date or parent identification, was detected, all records for that cow were excluded, including incoming records and all records already in the Animal Improvement Programs Laboratory files. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 57

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 20 pages
File Size : 44,9 Mb
Release : 2017-11-18
Category : Business & Economics
ISBN : 0260963348

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Dairy Herd Improvement Letter, Vol. 57 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 57: May 1981 Relative rank of higher cis cows among eligible cows is indicated in table 6. The percentages generally agree with those in table 2. The most consistent differences are higher percentages for Holsteins in table 6 than in table 2, which are caused by the proportion of grade cows lacking identification of the dam. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 49

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 70 pages
File Size : 43,5 Mb
Release : 2018-01-13
Category : Reference
ISBN : 0428980651

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Dairy Herd Improvement Letter, Vol. 49 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 49: July-August-September, 1973 The first herd average production records were reported from this association for 1906. At that time, the association included 31 herds with 239 cows that produced an average of pounds of milk and 315 pounds of fat annually. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 55

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 24 pages
File Size : 46,8 Mb
Release : 2018-01-09
Category : Business & Economics
ISBN : 0428675859

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Dairy Herd Improvement Letter, Vol. 55 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 55: June 1979 Service in each State. The data obtained within each herd are used by the dairy farmer for making management decisions, which include culling, breeding. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 52

Author : U. S. Agricultural Research Service
Publisher : Forgotten Books
Page : 26 pages
File Size : 40,5 Mb
Release : 2018-03
Category : Reference
ISBN : 0666701083

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Dairy Herd Improvement Letter, Vol. 52 by U. S. Agricultural Research Service Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 52: June, 1976 Table 6 presents data for the owner-sampler plan. The Owner - Sampler plan decreased in herds and cows since January 1, 1975. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 56: April 1980 (Classic Reprint)

Author : Rex L. Powell
Publisher : Forgotten Books
Page : 20 pages
File Size : 49,9 Mb
Release : 2017-12-14
Category : Business & Economics
ISBN : 0332623025

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Dairy Herd Improvement Letter, Vol. 56: April 1980 (Classic Reprint) by Rex L. Powell Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 56: April 1980 The average pd's were studied for sires of first lactation cows on Official dhi test calving from 1973 through 1978. Only first lactations were used in order to provide figures more reflective of recent decisions. The use of later lactations would dilute the higher recent levels of sire merit. Table 1 gives the average pd's for 1973 and 1978 and the annual change for intervening years for milk, fat, and dollars. PD dollars (pds) is a combination of PD milk (pom) and PD fat (pdf) according to the national average milk price in 1979. Thus, pd$ x pdn) x pdf). All pd$ were computed by this formula. Changes frun year to year more clearly show the changes (progress) taking place than would the presentation of annual averages. The annual changes are not uniform across or even within breeds but are predominately positive. Some fluctuations are due to limited numbers of cows and sires in some breeds. The fluctuations are smaller in Holsteins, probably because of the larger number of cows. The sires of later lactation cows, representing a number of years of first calvings, would smooth out the year to-year variation frun sires of first lactation cows. In these data, first lactations were 25 to 30 percent of all lactations. The average sire is genetically better each year. The table gives the average annual changes in pom, pdf, and pd$. Each year dairy farmers need to increase the average pd's of sires used by those amounts, just to keep pace with national progress. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 57

Author : United States Department Of Agriculture
Publisher : Forgotten Books
Page : 30 pages
File Size : 53,7 Mb
Release : 2018-03-29
Category : Business & Economics
ISBN : 036568399X

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Dairy Herd Improvement Letter, Vol. 57 by United States Department Of Agriculture Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 57: Participation Report, January 1, 1981 9/ heigh-a-day-a-boqtb tabulation began IR 1957. 10/ averages poe 1959 and 1961 national testing year changed IN 1960 TO begin bay. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Dairy Herd Improvement Letter, Vol. 54 (Classic Reprint)

Author : U S Agricultural Research Service
Publisher : Forgotten Books
Page : 28 pages
File Size : 42,8 Mb
Release : 2018-03-19
Category : Electronic
ISBN : 048361727X

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Dairy Herd Improvement Letter, Vol. 54 (Classic Reprint) by U S Agricultural Research Service Pdf

Excerpt from Dairy Herd Improvement Letter, Vol. 54 Table 2 lists the percentages of all milk cows keeping plans. (see map on page The data show California, Connecticut, Hawaii, Nevada, New Mexico and Washington) with more than 50 percent of their follow with between 40 and percent of their co between 30 and percent; 11 States, between 20 between 10 and percent; and 1 State still has cows tested. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.