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| Ott, Stephen L.. |
| The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research. The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers. Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996. Data on digital dermatitis were collected during the second phase as Federal or state Veterinary Medical Officers (VMO's) or Animal Health Technicians (AHT's) contacted producers from February 20 through May 24, 1996 to complete a questionnaire. Contact for this paper: Steven Ott |
| Tipo: Report |
Palavras-chave: NAHMS; Dairy; Cattle; Footwarts; Heelwarts; Lameness; Hoof; Digital dermatitis; Livestock Production/Industries. |
| Ano: 1997 |
URL: http://purl.umn.edu/32762 |
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| Akin,Ibrahim; Akin,Tugba. |
| ABSTRACT: This study aimed to evaluate the economic efficiency of DD treatment on milk yield in lame cows suffering from DD. A total of 33 Holstein dairy cows with DD were included in the study. The milk yields were assessed as (1st); beginning milk production (BMP), (2nd); peak milk production before the diagnosis (PMPBD), (3rd); diagnosis day milk production (DMP), and (4th); post-treatment milk production (TMP). In the first stage of analyses, using the E-views equity test of means program, cows were classified into three groups for diagnosis time of DD according to the day in milk (DIM) (Group 1: 0 ≤ DIM ≤ 50, Group 2: 51 ≤ DIM ≤ 100, and Group 3: 101 ≤ DIM ≤ 150). Analysis of variance (ANOVA F-Test) and the Welch F-Test were conducted to compare the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy cow; Digital dermatitis; Treatment; Dairy economics; Break-even analysis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000800604 |
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