Download or read book Dairy Herd Improvement Letter Vol 56 April 1980 Classic Reprint written by Rex L. Powell and published by Forgotten Books. This book was released on 2017-12-14 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 56 written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2019-02 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 56 written by Science And Education Administration and published by Forgotten Books. This book was released on 2018-01-08 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy Herd Improvement Letter, Vol. 56: December 1980 Information on feed and income, in addition to milk and fat production, was reported by the Iowa, New York, North Carolina, Pennsylvania, and Washington dairy records processing centers. Averages for this additional information and milk and fat are presented separately for herd records with feeding information. Production averages from herds on official plans included 92 percent of the herds and 93 percent of the cows enrolled in these plans as of January 1, 1980, a slight increase from the previous test year. Production averages from herds on nonofficial plans included 84 percent of the herds and 78 percent of the cows enrolled in these plans as of January 1, 1980, a slight decrease from the previous test year. Records were not included if the herds represented had fewer than five cows, average milk production less than or greater than pounds, average fat production less than 92 or greater than pounds, average percent fat less than or greater than or time on test less than than 12 months. Herd and cow numbers and averages reported in State newsletters may differ from values reported in this Letter because a State may use a different test year. 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.
Download or read book Dairy Herd Improvement Letter Vol 57 written by Science And Education Administration and published by Forgotten Books. This book was released on 2018-09-27 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy Herd Improvement Letter, Vol. 57: April 1981 Averages in tables 1 and 2_ are for all, active ai, inactive ai, and non-ai bulls. Previously there were -no separate averages for inactive AI bulls, but the averages except for pd% could have been computed from the other averages distributed with the active AI list. Active AI bulls were those designated as active by the controlling organization. Inactive AI bulls had a stud code and had entered the stud at least 3 months prior to the Summary date but were not in active service at the time of the Summary. All other bulls were given non-ai status. 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.
Download or read book Dairy Herd Improvement Letter Vol 52 written by U. S. Agricultural Research Service and published by Forgotten Books. This book was released on 2018-03 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 53 Classic Reprint written by U. S. Agricultural Research Service and published by Forgotten Books. This book was released on 2018-01-09 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 54 Classic Reprint written by U S Agricultural Research Service and published by Forgotten Books. This book was released on 2018-03-19 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 55 written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2018-01-09 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 59 May 1983 Classic Reprint written by U. S. Agricultural Research Service and published by Forgotten Books. This book was released on 2018-01-08 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Association Letter Vol 32 written by U. S. Agricultural Research Service and published by Forgotten Books. This book was released on 2017-10-28 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy-Herd-Improvement-Association Letter, Vol. 32: January, 1956 In case records from more than one herd were used, the reference is to the herd from which production records for the largest number of the sire's youngest daughters were reported. If the Sire has been used in an artificial-breeding association, the name of the association is given. 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.
Download or read book Dairy Herd Improvement Letter Vol 57 written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2017-11-18 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter Vol 49 written by U. S. Agricultural Research Service and published by Forgotten Books. This book was released on 2017-01-26 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy Herd Improvement Letter, Vol. 49: May-June, 1973 On January 1, 1973, the program included herds with cows, which is percent of the Nation's dairy cow population. This is the first time since 1956, when owner-sampler testing was included, that the-percentage of testing has risen 2 percent in a year. The cows were in associations with supervisors. Official dhi included herds and cows for an average of cows per herd. Dhir included herds and cows, also averaging cows per herd. Owner-sampler included herds and cows for an average of cows per herd. Similar figures for wadam were 590 herds, cows, and cows per herd. The other unofficial plans included herds and cows for an average of cows per herd. 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.
Download or read book Dairy Herd Improvement Letter Vol 59 written by United States Department of Agriculture and published by Forgotten Books. This book was released on 2016-12-07 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy Herd Improvement Letter, Vol. 59: December, 1983 Improvement Programs Laboratory, Animal Science Institute, Beltsville Agricultural Research Center, Beltsville, Md. 20705. 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.
Download or read book Dairy Herd Improvement Letter Vol 27 written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2017-10-30 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Dairy Herd Improvement Letter 1973 Vol 51 Classic Reprint written by Usda Agricultural Research Service and published by Forgotten Books. This book was released on 2018-09-10 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy Herd Improvement Letter, 1973, Vol. 51 Table 23 is the list of names and addresses of AI organizations reporting data to the usda. A list of State Extension Dairymen advising on dairy cattle breeding in each State appears on the last page. 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.
Download or read book Dairy Herd Improvement Letter Vol 52 Classic Reprint written by and published by . This book was released on 2017-01-20 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dairy Herd Improvement Letter Vol 60 written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2018-09-14 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Dairy Herd Improvement Letter, Vol. 60: December 1984 The number of herds with averages for protein has increased almost 69 percent during the past year. Several factors may explain this trend. More component testing is being done in central laboratories than in the past because they have equipment that will test for protein as well as fat percentage at no extra expense. The number of milk processors that pay a protein differential also has increased. In addition, interest in selection for protein yield has increased. 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.
