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Genetic Control of Health Treatment Costs for Holsteins in 8 High-Performance Herds.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Genetic Control of Health Treatment Costs for Holsteins in 8 High-Performance Herds./
作者:	Donnelly, Michael Robert.
面頁冊數:	1 online resource (124 pages)
附註:	Source: Masters Abstracts International, Volume: 57-05.
Contained By:	Masters Abstracts International57-05(E).
標題:	Animal sciences. -
電子資源:	click for full text (PQDT)
ISBN:	9780355807240

Genetic Control of Health Treatment Costs for Holsteins in 8 High-Performance Herds.
Donnelly, Michael Robert.

Genetic Control of Health Treatment Costs for Holsteins in 8 High-Performance Herds. - 1 online resource (124 pages)

Source: Masters Abstracts International, Volume: 57-05.

Thesis (M.S.)--University of Minnesota, 2017.

Includes bibliographical references

Health treatments of Holsteins were recorded over an 8-year period of time and partitioned into 5 categories (mastitis, reproduction, lameness, metabolic, and miscellaneous). Fixed costs of health treatments were obtained from the veterinary clinics that serviced the 8 herds, and they were assigned to each observation. Health treatment cost of cows was highest during the first 30 days in milk for all parities and means ranged from $22.87 in first parity to $38.50 in fifth parity. The total of health treatment cost during first parity had means that ranged from $23.38 to $74.60 for the 8 herds and usually increased with parity. Estimates of heritability were 0.13, 0.04, 0.10, 0.12, and 0.04 for the mastitis, reproduction, lameness, metabolic, and miscellaneous categories, respectively, for first parity. The estimates of heritability for total health treatment cost were 0.25 for first, 0.16 for second, and 0.17 for third parity.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355807240Subjects--Topical Terms:

1178863
Animal sciences.
Index Terms--Genre/Form:

554714
Electronic books.

Genetic Control of Health Treatment Costs for Holsteins in 8 High-Performance Herds.
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245 1 0 $a Genetic Control of Health Treatment Costs for Holsteins in 8 High-Performance Herds.
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500 $a Source: Masters Abstracts International, Volume: 57-05.
500 $a Advisers: Leslie B. Hansen; Bradley J. Heins.
502 $a Thesis (M.S.)--University of Minnesota, 2017.
504 $a Includes bibliographical references
520 $a Health treatments of Holsteins were recorded over an 8-year period of time and partitioned into 5 categories (mastitis, reproduction, lameness, metabolic, and miscellaneous). Fixed costs of health treatments were obtained from the veterinary clinics that serviced the 8 herds, and they were assigned to each observation. Health treatment cost of cows was highest during the first 30 days in milk for all parities and means ranged from $22.87 in first parity to $38.50 in fifth parity. The total of health treatment cost during first parity had means that ranged from $23.38 to $74.60 for the 8 herds and usually increased with parity. Estimates of heritability were 0.13, 0.04, 0.10, 0.12, and 0.04 for the mastitis, reproduction, lameness, metabolic, and miscellaneous categories, respectively, for first parity. The estimates of heritability for total health treatment cost were 0.25 for first, 0.16 for second, and 0.17 for third parity.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Animal sciences. $3 1178863
650 4 $a Animal diseases. $3 1183122
655 7 $a Electronic books. $2 local $3 554714
690 $a 0475
690 $a 0476
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Minnesota. $b Animal Sciences. $3 1191342
773 0 $t Masters Abstracts International $g 57-05(E).
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