The use of corn treated with various applications of foliar fungicide to increase corn silage quality and performance of Holstein cows
type: CreativeWork
description: With increasing feed prices and decreasing profit margins, livestock producers are constantly searching for ways to increase feed nutritive value and consequently improve production per unit of feedstuff. Research on the use of foliar fungicide has shown to increase corn grain yield in recent years. Fungicides can increase forage quality and by changing corn composition and nutritive value. However, little is known on what effects this may have on quality of corn ensiled and production when the silage is fed to cattle. Thus, the objectives of the present study were to explore the associations of corn plant foliar fungicide application on harvested whole plant corn silage quality, aerobic stability, digestibility, and cow performance. Treatments were control (CON), corn received no foliar fungicide application; treatment 1 (1X), corn received one application of pyraclostrobin foliar fungicide (PYR; Headline; BASF Corp. Florham Park, New Jersey) at corn stage V5; treatment 2 (2X), in which corn received 2 applications of foliar fungicides, PYR at corn stage V5, and a mixture of pyraclostrobin and metconazole (PYR+MET; Headline AMP; BASF Corp. Florham Park, New Jersey) at corn stage R1; and treatment 3 (3X), in which corn received 3 applications of foliar fungicides, PYR at corn stage V5, PYR+MET at corn stage R1, and PYR+MET at corn stage R3. Corn was harvested at the ¾ milk line and then ensiled for 7 mo. The first study utilized 64 Holstein cows with parity 2.53 ± 1.5, BW 653 ± 80 kg, and 161 ± 51 days in milk (DIM). Cows were blocked and randomly assigned to one of four treatments to be included in diet (35 % of the DM as corn silage). The trial was conducted in two consecutive periods each consisting of 1 wk for adaptation (covariate) followed by 5 wk of measurements where cows received assigned treatments. Body weight, BCS, and lame scores were assessed weekly. Milk production, and DMI were measured on a daily basis. Milk samples for milk composition analysis wer…
abstract: With increasing feed prices and decreasing profit margins, livestock producers are constantly searching for ways to increase feed nutritive value and consequently improve production per unit of feedstuff. Research on the use of foliar fungicide has shown to increase corn grain yield in recent years. Fungicides can increase forage quality and by changing corn composition and nutritive value. However, little is known on what effects this may have on quality of corn ensiled and production when the silage is fed to cattle. Thus, the objectives of the present study were to explore the associations of corn plant foliar fungicide application on harvested whole plant corn silage quality, aerobic stability, digestibility, and cow performance. Treatments were control (CON), corn received no foliar fungicide application; treatment 1 (1X), corn received one application of pyraclostrobin foliar fungicide (PYR; Headline; BASF Corp. Florham Park, New Jersey) at corn stage V5; treatment 2 (2X), in which corn received 2 applications of foliar fungicides, PYR at corn stage V5, and a mixture of pyraclostrobin and metconazole (PYR+MET; Headline AMP; BASF Corp. Florham Park, New Jersey) at corn stage R1; and treatment 3 (3X), in which corn received 3 applications of foliar fungicides, PYR at corn stage V5, PYR+MET at corn stage R1, and PYR+MET at corn stage R3. Corn was harvested at the ¾ milk line and then ensiled for 7 mo. The first study utilized 64 Holstein cows with parity 2.53 ± 1.5, BW 653 ± 80 kg, and 161 ± 51 days in milk (DIM). Cows were blocked and randomly assigned to one of four treatments to be included in diet (35 % of the DM as corn silage). The trial was conducted in two consecutive periods each consisting of 1 wk for adaptation (covariate) followed by 5 wk of measurements where cows received assigned treatments. Body weight, BCS, and lame scores were assessed weekly. Milk production, and DMI were measured on a daily basis. Milk samples for milk composition analysis wer…
author: Haerr, Katie J
language: en
keywords: Corn silage, Dairy efficiency
date published: 2015-11-17T21:21:55Z
date modified: 2026-07-22T22:26:32Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/88421