Artwork

Eric R에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Eric R 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.
Player FM -팟 캐스트 앱
Player FM 앱으로 오프라인으로 전환하세요!

The Cutting Edge - Article 19 - Gradual weaning doesn't improve performance low milk ration calves at weaning

27:48
 
공유
 

Manage episode 262281436 series 2681084
Eric R에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Eric R 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

Gradual weaning does not improve performance for calves with low starter intake at the beginning of the weaning process

Link: https://www.journalofdairyscience.org/article/S0022-0302(20)30198-3/fulltext

Big Take Away #1: This study re-enforces the common belief that we need to be sure to wean our limit fed or low milk ration calves based on starter intakes not time. The authors also proved that in limit fed calves, gradual weaning did not increase starter intakes vs abrupt weaning.

Big Take Away #2: In this study ADG’s, were significantly different between starter intake level calves. Calves on low starter intake at day 35 had almost 6 tenths LESS ADG overall than those who had high day 35 starter intakes and that effect grew larger during the weaning period. We generally know 0.1 lbs of ADG equals ~250 lbs of milk.

Big Take Away #3: Today’s society places an ever increasing value on decreasing suffering or perceived suffering by any animal. This goes doubly for neonates. In this study observable hunger signs in abrupt weaning calves trended toward greater vocalization than the gradually weaned calves. However, no physiologic stress parameters were increased.

Ultimate Message: We as clinicians need to realize the double narrative that is playing our in our industry. First, we have producers feeding high milk rations and secondly, we have the producers feeding low milk rations in an attempt to save costs or because of tradition. For this second group we will need to concentrate on educating them about the importance of monitoring starter intake levels as a trigger for weaning vs days of age and how it can help set the calf up for a better weaning period and better ADG’s overall.

Gradual weaning does not improve performance for calves with low starter intake at the beginning of the weaning process

Published by C.M.M. Bittar, M.P. Gallo, J.T. Silva, M.R. de Paula, M. Poczynek, G.B. Mourã

Location: University of Sao Paulo Brazil

Objective: The objective of this study was to evaluate the effects of 2 weaning protocols and 2 levels of concentrate intake on the performance and physiological and behavioral variables related to stress in dairy calves.

Location: University of Sao Paulo Brazil

Methods: Thirty-six newborn male Holstein calves were used in a randomized block design with a 2 × 2 factorial arrangement: 2 weaning strategies, abrupt or gradual, and 2 levels of concentrate intake at 5 wk of age, high (>350 g/d) or low (≤350 g/d). Calves were equally managed until they were 5 wk of age and then grouped according to concentrate intake. Statistical analyzes were performed using the MIXED procedure of SAS software (SAS Institute Inc., Cary, NC), and no significant interaction was observed between studied factors (weaning method and starter intake level); therefore, we considered each factor separately and their interactions with age.

Outcomes: The highest dry matter intake and concentration of β-hydroxybutyrate were recorded for animals with a high level of starter intake independent of the weaning method. Structural growth (cm/wk) and average daily gain were superior for calves with high starter intake, but weaning method had no effect. The gradual weaning protocol increased the time eating starter, regardless of the level of concentrate intake. Even animals with low concentrate intake that were weaned abruptly showed levels of cortisol and acid-soluble glycoprotein within normal physiological levels....CONTINUED IN ABSTRACT...

  continue reading

109 에피소드

Artwork
icon공유
 
Manage episode 262281436 series 2681084
Eric R에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Eric R 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

Gradual weaning does not improve performance for calves with low starter intake at the beginning of the weaning process

Link: https://www.journalofdairyscience.org/article/S0022-0302(20)30198-3/fulltext

Big Take Away #1: This study re-enforces the common belief that we need to be sure to wean our limit fed or low milk ration calves based on starter intakes not time. The authors also proved that in limit fed calves, gradual weaning did not increase starter intakes vs abrupt weaning.

Big Take Away #2: In this study ADG’s, were significantly different between starter intake level calves. Calves on low starter intake at day 35 had almost 6 tenths LESS ADG overall than those who had high day 35 starter intakes and that effect grew larger during the weaning period. We generally know 0.1 lbs of ADG equals ~250 lbs of milk.

Big Take Away #3: Today’s society places an ever increasing value on decreasing suffering or perceived suffering by any animal. This goes doubly for neonates. In this study observable hunger signs in abrupt weaning calves trended toward greater vocalization than the gradually weaned calves. However, no physiologic stress parameters were increased.

Ultimate Message: We as clinicians need to realize the double narrative that is playing our in our industry. First, we have producers feeding high milk rations and secondly, we have the producers feeding low milk rations in an attempt to save costs or because of tradition. For this second group we will need to concentrate on educating them about the importance of monitoring starter intake levels as a trigger for weaning vs days of age and how it can help set the calf up for a better weaning period and better ADG’s overall.

Gradual weaning does not improve performance for calves with low starter intake at the beginning of the weaning process

Published by C.M.M. Bittar, M.P. Gallo, J.T. Silva, M.R. de Paula, M. Poczynek, G.B. Mourã

Location: University of Sao Paulo Brazil

Objective: The objective of this study was to evaluate the effects of 2 weaning protocols and 2 levels of concentrate intake on the performance and physiological and behavioral variables related to stress in dairy calves.

Location: University of Sao Paulo Brazil

Methods: Thirty-six newborn male Holstein calves were used in a randomized block design with a 2 × 2 factorial arrangement: 2 weaning strategies, abrupt or gradual, and 2 levels of concentrate intake at 5 wk of age, high (>350 g/d) or low (≤350 g/d). Calves were equally managed until they were 5 wk of age and then grouped according to concentrate intake. Statistical analyzes were performed using the MIXED procedure of SAS software (SAS Institute Inc., Cary, NC), and no significant interaction was observed between studied factors (weaning method and starter intake level); therefore, we considered each factor separately and their interactions with age.

Outcomes: The highest dry matter intake and concentration of β-hydroxybutyrate were recorded for animals with a high level of starter intake independent of the weaning method. Structural growth (cm/wk) and average daily gain were superior for calves with high starter intake, but weaning method had no effect. The gradual weaning protocol increased the time eating starter, regardless of the level of concentrate intake. Even animals with low concentrate intake that were weaned abruptly showed levels of cortisol and acid-soluble glycoprotein within normal physiological levels....CONTINUED IN ABSTRACT...

  continue reading

109 에피소드

Tất cả các tập

×
 
Loading …

플레이어 FM에 오신것을 환영합니다!

플레이어 FM은 웹에서 고품질 팟캐스트를 검색하여 지금 바로 즐길 수 있도록 합니다. 최고의 팟캐스트 앱이며 Android, iPhone 및 웹에서도 작동합니다. 장치 간 구독 동기화를 위해 가입하세요.

 

빠른 참조 가이드