國立虎尾科技大學 |

Evaluating the Relationship between Hoof Trimming and Dairy Cattle Well-being.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Evaluating the Relationship between Hoof Trimming and Dairy Cattle Well-being./
作者:	Stoddard, Grant.
面頁冊數:	1 online resource (156 pages)
附註:	Source: Dissertation Abstracts International, Volume: 79-09(E), Section: B.
Contained By:	Dissertation Abstracts International79-09B(E).
標題:	Animal sciences. -
電子資源:	click for full text (PQDT)
ISBN:	9780355860542

Evaluating the Relationship between Hoof Trimming and Dairy Cattle Well-being.
Stoddard, Grant.

Evaluating the Relationship between Hoof Trimming and Dairy Cattle Well-being. - 1 online resource (156 pages)

Source: Dissertation Abstracts International, Volume: 79-09(E), Section: B.

Thesis (Ph.D.)--University of Minnesota, 2018.

Includes bibliographical references

The aim of this thesis was to provide knowledge to the dairy industry about HT and to provide science based recommendations on if LIT or BIG model is more effective at preventing lameness and lesions. Based on the results from this thesis it was shown that the HT process is associated with behavior changes and causes an acute stress response and decreases milk yield. Based on the results of these objectives the acute stress response is due to restraint, not the actual removal of horn during the HT process. The decrease in milk yield that was observed after HT needs further research to determine what effect disruption of the cow's day with no access to feed has on milk yield. In addition, we compared a HT technique that is currently used in the industry to an adaptation that increased the modeling on the weight bearing claw. Based on a subset analysis, this adaptation was protective for hoof horn lesions and lameness for cows trimmed at the end of their first lactation. However, there was no difference between the two HT techniques for long term milk yield and culling risk. The final conclusion was BIG model is more effective at preventing hoof horn lesions than the LIT model, and there was no evidence that BIG model (vs LIT) was detrimental to the welfare of the cow based on milk yield and culling risk.

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

Mode of access: World Wide Web

ISBN: 9780355860542Subjects--Topical Terms:

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

554714
Electronic books.

Evaluating the Relationship between Hoof Trimming and Dairy Cattle Well-being.
LDR:02547ntm a2200325Ki 4500 001 917440
005 20181012133446.5
006 m o u
007 cr mn||||a|a||
008 190606s2018 xx obm 000 0 eng d
020 $a 9780355860542
035 $a (MiAaPQ)AAI10749476
035 $a (MiAaPQ)umn:19037
035 $a AAI10749476
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Stoddard, Grant. $3 1191487
245 1 0 $a Evaluating the Relationship between Hoof Trimming and Dairy Cattle Well-being.
264 0 $c 2018
300 $a 1 online resource (156 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 79-09(E), Section: B.
500 $a Advisers: Gerard Cramer; Sandra Godden.
502 $a Thesis (Ph.D.)--University of Minnesota, 2018.
504 $a Includes bibliographical references
520 $a The aim of this thesis was to provide knowledge to the dairy industry about HT and to provide science based recommendations on if LIT or BIG model is more effective at preventing lameness and lesions. Based on the results from this thesis it was shown that the HT process is associated with behavior changes and causes an acute stress response and decreases milk yield. Based on the results of these objectives the acute stress response is due to restraint, not the actual removal of horn during the HT process. The decrease in milk yield that was observed after HT needs further research to determine what effect disruption of the cow's day with no access to feed has on milk yield. In addition, we compared a HT technique that is currently used in the industry to an adaptation that increased the modeling on the weight bearing claw. Based on a subset analysis, this adaptation was protective for hoof horn lesions and lameness for cows trimmed at the end of their first lactation. However, there was no difference between the two HT techniques for long term milk yield and culling risk. The final conclusion was BIG model is more effective at preventing hoof horn lesions than the LIT model, and there was no evidence that BIG model (vs LIT) was detrimental to the welfare of the cow based on milk yield and culling risk.
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
655 7 $a Electronic books. $2 local $3 554714
690 $a 0475
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of Minnesota. $b Veterinary Medicine. $3 1191488
773 0 $t Dissertation Abstracts International $g 79-09B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10749476 $z click for full text (PQDT)