Competition for Total Mixed Diets Fed for Ad Libitum Intake Using One or Four Cows per Feeding Station

Olofsson, Jan I.

doi:10.3168/jds.s0022-0302(99)75210-0

Cited by 137 publications

(125 citation statements)

References 9 publications

Supporting

Mentioning

100

Contrasting

Unclassified

Order By: Relevance

“…Rice straw as roughage source was restricted to 1 kg DM/d and offered prior to concentrates feeding during the feedlot period hence there was no refusal of rice straw regardless of treatment types. The results of total DMI in our study were in agreement with those of Gonyou and Stricklin (1998), whereas others found slight differences in feed intake in relation to stocking density (Huzzey et al, 2006;McConnell et al, 1987;Olofsson, 1999).…”

Section: Effect Of Stocking Density On Feed Intakesupporting

confidence: 82%

Effect of Stocking Density on Eating Behavior of Finishing Hanwoo Steers (Bos taurus coreanae)

Lee

Kwon²,

Kim

2012

Journal of The Korean Society of Grassland and Forage Science

View full text Add to dashboard Cite

This study was carried out to investigate the effects of stocking density on eating and ruminating behavior of Hanwoo steers (Bos taurus coreanae) in the finishing period. A total of 30 finishing Hanwoo steers (631.3 ± 11.4 kg, 25 months old) were allocated to one of four stocking density groups comprising 1, 2, 3, and 4 steers per 32 m 2 pen [G1 (32 m ) and G4 (8 m 2 ), respectively] in triplicate. Eating, rumination behaviors, as well as dry matter intake of steers were measured, and the results were subjected to analysis of variance with stocking density as the main effect. The results of eating behaviors over 48 hours are summarized as follows: Total intake was significantly (p<0.01) higher in G1, G2, and G3 compared to G4. Eating time was not different among the treatments, whereas ruminating time increased in the order of G1 > G2 > G3 > G4 (p<0.01). However, resting time and chewing time (sum of eating and ruminating) were not significantly different among the treatments. Number of boluses and number of total chews were highest in G1 (p<0.01), whereas number of chews per bolus was highest in G3 (p<0.01). Ruminating time per bolus as well as number of boluses per minute was not significantly different among the treatments. Number of defecations was higher in G1 and G2 animals compared to G3 and G4 animals (p<0.01). However, stocking density had no effect on drinking or urination. In conclusion, increasing stocking density (i.e. G4) per pen decreased voluntary intake, ruminating time, and total chewing number in the finishing period of Hanwoo steers. However, care must be taken in discussing stocking density in the present study as the space allowance per animal was satisfactory to meet the current animal welfare regulation in Korea and in Europe, although the beef production system in Korea is more intensive than in Europe.

show abstract

Section: Effect Of Stocking Density On Feed Intakesupporting

confidence: 82%

Effect of Stocking Density on Eating Behavior of Finishing Hanwoo Steers (Bos taurus coreanae)

Lee

Kwon²,

Kim

2012

Journal of The Korean Society of Grassland and Forage Science

View full text Add to dashboard Cite

show abstract

“…Dominant cows tend to spend more time eating in a competitive situation than cows with a lower social rank, if feeder space is restricted (ALBRIGHT 1993). In a competition situation, cows consume more feed but spend less time per day for feed intake (OLOFSSON 1999). In the current study, the ratio of 2 cows per feeder might lead to a competitive situation, which can affect feeding behaviour characteristics.…”

Section: Discussionmentioning

confidence: 99%

Variations in feeding behaviour of high-yielding dairy cows in relation to parity during early to peak lactation

2010

View full text Add to dashboard Cite

The objective of this study was to compare the feeding behaviour of high-yielding dairy cows in relation to parity during early to peak lactation and to determine whether or not there was any relationship between variables describing their feeding behaviour and total feed intake. Information concerning feed intake of each individual dairy cow is especially valuable for the herd management, particularly in early lactation. However, technical requirements for implementation are rarely given. Therefore, relationships between feed intake and time-related feeding behaviour parameters are of special interest. Time-related parameters could be recorded on farm conditions adapted sensor technology. Seventy high-yielding lactating dairy cows in different parities (23 in the 1st lactation, 17 in the 2nd lactation, and 30 in the 3rd-and-more-lactation) with an average of 11 000 kg milk yield per year were fed using automatic feeders from the 2nd to the 15th week of lactation. 222 231 recorded visits were analysed in three equal periods (period 1 = 7-39, period 2 = 40-72, and period 3 = 73-105 days in milk [DIM]) during early to peak lactation. Visits were clustered in meals based on the estimated meal criterion (28.5 min). The present study yielded the following values for meal frequency, number of visits per meal, meal duration, meal size, daily mealtime, daily dry matter intake (DMI), and feeding rate over the course of the study were 7.61 ± 1.7 (mean ± SD) meals/d, 4.02 ± 1.68 visits/meal, 37.07 ± 13.77 min/meal, 2.96 ± 0.92 kg DM/meal, 272.18 ± 82.14 min/d, 21.46 ± 4.29 kg DM/d, and 85.56 ± 28.77 g DM/min, respectively. Younger cows had more meals per day, more number of visits per meal, longer daily mealtime but a smaller meal size, lower daily DMI, and lower feeding rate compared to older cows (P<0.001). Meal duration and meal size were highly related to the number of visits at feeder per meal (R 2 =0.55-0.63; P<0.001, R 2 =0.25-0.39; P<0.001 respectively). In addition, meal size was highly related to meal duration (R 2 =0.59-0.72; P<0.001). Results from this study, which analysed data based on meal criterion, showed a higher correlation between the selected parameters of feeding behaviour and feed intake. The high correlation between meal duration and meal size could be used to estimate feed intake.Keywords: feeding behaviour, feed intake, parity, dairy cow

show abstract

“…Even with unlimited access to feed, cattle interact in ways that may give some individuals an advantage over others in the group (Olofsson, 1999). When a competitive situation exists at the feedbunk, dominant cows typically spend more total time eating than cows of lower social rank, resulting in greater DMI.…”

Section: Grouping Social Dominance and Competition For Feedmentioning

confidence: 99%

Effect of Animal Grouping on Feeding Behavior and Intake of Dairy Cattle

Grant¹,

Albright²

2001

Journal of Dairy Science

213

187

View full text Add to dashboard Cite

Although data are scarce, it is clear that grouping strategy can have a significant impact on the feeding behavior and feed intake of dairy cattle. Feed intake is controlled by ruminoreticular fill and physiological mechanisms, but grouping is a component of the cow's feeding environment that can modulate intake as a result of its impact on cow comfort, competition for feed and other resources, and herd health. Social dominance and competition for feed impact feeding behavior and proper grouping strategy will minimize the negative impact of excessive competition on intake and enhance beneficial effects of group feeding such as social facilitation. Primiparous cows benefit from separate grouping from older animals by increased intake and productivity. Bunk space, accessibility of feed, and type of feeding system must be considered when determining the optimal group size. There appears to be no problem with large (>200 cows) groups of cows per se, but management decisions such as overcrowding with insufficient head gates or manger space play a role in determining cow well-being and feeding behavior. Research with group sizes larger than 400 cows needs to evaluate productivity, feeding and other behavior, and animal well-being. Significant overcrowding appears to reduce feeding activity, alter resting behavior, and decrease rumination activity. Negative social consequences of moving cows between groups last 3 to 7 d. Although the effect of grouping on feeding behavior remains largely unquantitated at this point, the effect is potentially large and requires further research to describe the impact of cow dynamics within a group on feed intake.

show abstract

Competition for Total Mixed Diets Fed for Ad Libitum Intake Using One or Four Cows per Feeding Station

Cited by 137 publications

References 9 publications

Effect of Stocking Density on Eating Behavior of Finishing Hanwoo Steers (Bos taurus coreanae)

Effect of Stocking Density on Eating Behavior of Finishing Hanwoo Steers (Bos taurus coreanae)

Variations in feeding behaviour of high-yielding dairy cows in relation to parity during early to peak lactation

Effect of Animal Grouping on Feeding Behavior and Intake of Dairy Cattle

Contact Info

Product

Resources

About