Effects of physically effective neutral detergent fibre content on dry-matter intake, digestibility and chewing activity in beef cattle fed total mixed ration
Jae Hyun Park A , Kyoung Hoon Kim B , Pyo Jam Park A , Byong Tae Jeon A , Mi Rae Oh A , Se Yeong Jang A , Si Heung Sung A and Sang Ho Moon A CA Korea Nokyong Research Center, Konkuk University, Chungju 380-701, Republic of Korea.
B Research Institute of Eco-friendly Animal Science, Seoul National University, Seoul 151-921, Republic of Korea.
C Corresponding author. Email: moon0204@kku.ac.kr
Animal Production Science 55(2) 166-169 https://doi.org/10.1071/AN14241
Submitted: 12 March 2014 Accepted: 22 October 2014 Published: 17 December 2014
Abstract
Our aim in this study was to determine the effects of physically effective neutral detergent fibre (peNDF) in a total mixed ration (TMR) on feed intake, digestibility and chewing activity in beef cattle. The experiment had a replicated 3 × 3 Latin square desig, using three fattening Hanwoo (Bos taurus coreanae) steers with ruminal cannulas. Steers were offered one of three diets (high, medium or low peNDF content) obtained by mixing the same TMR for different periods of time (5, 13 and 25 min). peNDF content of TMR was calculated as [total chewing time/NDF intake (kg)] × dietary NDF content, and the proportion of sample dry matter (DM) collected in a ≥1.18-mm sieve is commonly used as the physical effectiveness factor in the equation. The peNDF1.18 contents of the high, medium and low diets were 25.97%, 21.10% and 17.94% (P < 0.05). In addition, the proportion of particles collected on the 19-mm, 1.18-mm, and pan sieves changed linearly with an increase of TMR mixing time. Mean particle-size distributions of diets were 11.43, 24.11, 30.70 and 33.68 for 19 mm, 8 mm, 1.18 mm and pan, respectively. Eating rate and ruminating and chewing efficiencies were significantly decreased with reduced peNDF content, and DM intake was increased significantly (P < 0.05). Lower peNDF content reduced the total number of chews significantly (P < 0.05). Total time spent chewing associated with eating was not affected by peNDF contents. Digestibility of DM, crude protein and crude fat decreased with reducing peNDF content in the diet, but there was no significant difference among the three groups. These results indicated that peNDF affects intake, digestibility and chewing activity in beef cattle. Therefore, high levels of peNDF appears to improve TMR, as it can increase efficiency and may prevent ruminal disorders in Hanwoo steer.
Additional keywords: DM intake, Hanwoo steer, peNDF, TMR.
References
Allen MS (2000) Effects of diet on short-term regulation of feed intake by lactating dairy cattle. Journal of Dairy Science 83, 1598–1624.| Effects of diet on short-term regulation of feed intake by lactating dairy cattle.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXltVGgtb0%3D&md5=7817d0d67447a47c4db4f9aca64b3833CAS | 10908065PubMed |
Beauchemin KA, Yang WZ (2005) Effects of physically effective fiber on intake, chewing activity, and ruminal acidosis for dairy cows fed diets based in corn silage. Journal of Dairy Science 88, 2117–2129.
| Effects of physically effective fiber on intake, chewing activity, and ruminal acidosis for dairy cows fed diets based in corn silage.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXksFyruro%3D&md5=b702732eb10c664fb4d5e746de963f7dCAS | 15905442PubMed |
Beauchemin KA, Yang WZ, Rode LM (2003) Effects of particle size of alfalfa-based dairy cow diets on chewing activity, rumen fermentation, and milk production. Journal of Dairy Science 86, 630–643.
| Effects of particle size of alfalfa-based dairy cow diets on chewing activity, rumen fermentation, and milk production.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXhslClt7w%3D&md5=bcd9d0d9cf22036582791ab05862659cCAS | 12647969PubMed |
Brouk M, Belyea R (1993) Chewing activity and digestive responses of cows fed alfalfa forages. Journal of Dairy Science 76, 175–182.
| Chewing activity and digestive responses of cows fed alfalfa forages.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK3s7ntFektQ%3D%3D&md5=1e4ff083ebd3e822fb1fd282655a08b7CAS | 8436671PubMed |
Calberry JM, Plaizier JC, Einarson MS, McBride BW (2003) Effects of replacing chopped alfalfa hay with alfalfa silage in a total mixed ration on production and rumen conditions of lactating dairy cows. Journal of Dairy Science 86, 3611–3619.
| Effects of replacing chopped alfalfa hay with alfalfa silage in a total mixed ration on production and rumen conditions of lactating dairy cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXptFaju7w%3D&md5=65215b0e4742d87efb00e737e8b8e256CAS | 14672192PubMed |
Einarson MS, Plaizier JC, Wittenberg KM (2004) Effects of barley silage chop length on productivity and rumen onditions of lactating dairy cows fed a total mixed ration. Journal of Dairy Science 87, 2987–2996.
| Effects of barley silage chop length on productivity and rumen onditions of lactating dairy cows fed a total mixed ration.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXntlGjsbY%3D&md5=7f376aa6aa820bb426e4f6b08fa1939aCAS | 15375060PubMed |
Grant RJ, Colenbrander VF, Mertens DR (1990a) Milk fat depression in dairy cows: role of silage particle size. Journal of Dairy Science 73, 1834–1842.
| Milk fat depression in dairy cows: role of silage particle size.Crossref | GoogleScholarGoogle Scholar |
Grant RJ, Colenbrander VF, Mertens DR (1990b) Milk fat depression in dairy cows: role of alfalfa hay. Journal of Dairy Science 73, 1823–1833.
Kenney PA, Black JL (1984) Factors affecting diet selection by sheep. I. Potential intake rate and acceptability of food. Australian Journal of Agricultural Research 35, 551–563.
| Factors affecting diet selection by sheep. I. Potential intake rate and acceptability of food.Crossref | GoogleScholarGoogle Scholar |
Kononoff PJ, Heinrichs AJ (2003) The effect of corn silage particle size and cottonseed hulls on cows in early lactation. Journal of Dairy Science 86, 2438–2451.
| The effect of corn silage particle size and cottonseed hulls on cows in early lactation.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXltlSrtbs%3D&md5=ea77082489fbac906d99a83eeba7598bCAS | 12906062PubMed |
Kononoff PJ, Heinrichs AJ, Lehman HA (2003) The effect of corn silage particle size on eating behavior, chewing activities, and rumen fermentation in lactating dairy cows. Journal of Dairy Science 86, 3343–3353.
| The effect of corn silage particle size on eating behavior, chewing activities, and rumen fermentation in lactating dairy cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXotFOjt74%3D&md5=b86e3c65d1e08e4c711e21b3e6db921cCAS | 14594254PubMed |
Krause KM, Combs DK, Beauchemin KA (2002) Effects of forage particle size and grain fermentability in midlactation cows. II. Ruminal pH and chewing activity. Journal of Dairy Science 85, 1947–1957.
| Effects of forage particle size and grain fermentability in midlactation cows. II. Ruminal pH and chewing activity.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38Xmtl2rt7g%3D&md5=7d18e42fff87f93e8eb21699488acc1bCAS | 12214987PubMed |
Lammers BP, Buckmaster DR, Heinrichs AJ (1996) A simple method for the analysis of particle sizes of forage and total mixed rations. Journal of Dairy Science 79, 922–928.
| A simple method for the analysis of particle sizes of forage and total mixed rations.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK28XktVWrsr8%3D&md5=a6bd23242598650576d8411dbec55aecCAS | 8792291PubMed |
Leonardi C, Armentano LE (2003) Effect of quantity, quality, and length of alfalfa hay in selective comsumption by dairy cows. Journal of Dairy Science 86, 557–564.
| Effect of quantity, quality, and length of alfalfa hay in selective comsumption by dairy cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3sXhslCltrs%3D&md5=e4d3435302d4fa8e4342575832dd30eaCAS | 12647962PubMed |
Mertens DR (1997) Creating a system for meeting the fiber requirements of dairy cows. Journal of Dairy Science 80, 1463–1481.
| Creating a system for meeting the fiber requirements of dairy cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2sXks1Ogs7k%3D&md5=ccaeb32cee944476624162583a4000acCAS | 9241608PubMed |
Mertens DR (1986) Effect of physical characteristics, forage particle size and density on forage utilization. In ‘Proceedings of nutrition symposium’. (American Feed Industry Association: St Louis, MO)
NRC (2001) ‘Nutrient requirements of dairy cattle.’ 7th revised edn. (National Academy of Science: Washington, DC)
Plaizier JC (2004) Replacing chopped alfalfa hay with alfalfa silage in barley grain and alfalfa-based total mixed rations for lactating dairy cows. Journal of Dairy Science 87, 2495–2505.
| Replacing chopped alfalfa hay with alfalfa silage in barley grain and alfalfa-based total mixed rations for lactating dairy cows.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2cXotVyns7c%3D&md5=9dc548d760ac75c183dd2d284c1a8d28CAS | 15328273PubMed |
Shaver RD (2002) Rumen acidosis in dairy cattle: bunk management considerations. Available at http://www.uwex.edu/CES/ag/teams/dairy/FLlameness02.pdf.[Verified 10 March 2014]
Soita HW, Christensen DA, McKinnon JJ (2000) Influence of particle size on the effectiveness of the fiber in barley silage. Journal of Dairy Science 83, 2295–2300.
| Influence of particle size on the effectiveness of the fiber in barley silage.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXnsFyjsr0%3D&md5=a739c8301cb8f347997787321d28a917CAS | 11049072PubMed |
Sudweeks EM, Ely LO, Mertens DR, Sisk LR (1981) Assessing minimum amounts and form of roughages in ruminants diets: roughage value index system. Journal of Dairy Science 53, 1406–1411.
Yang WZ, Beauchemin KA (2006a) Effects of physically effective fiber on chewing activity and ruminal pH of dairy cows fed diets based on barley silage. Journal of Dairy Science 89, 217–228.
| Effects of physically effective fiber on chewing activity and ruminal pH of dairy cows fed diets based on barley silage.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XisVSkug%3D%3D&md5=fe28b664507d12556d353a5db2a9a30eCAS | 16357285PubMed |
Yang WZ, Beauchemin KA (2006b) Increasing the physically effective fiber content of dairy cow diets may lower efficiency of feed use. Journal of Dairy Science 89, 2694–2704.
| Increasing the physically effective fiber content of dairy cow diets may lower efficiency of feed use.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XmsVOltb4%3D&md5=2101407e5463e394ff3b26de2617e348CAS | 16772588PubMed |
