Effects of Starch Source and Level of Forage Neutral Detergent Fiber on Performance by Dairy Cows

Slater, Aimee; Eastridge, M. L.; Firkins, J.L.; Bidinger, Laura

doi:10.3168/jds.s0022-0302(00)74881-8

Cited by 34 publications

(34 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In contrast, Slater et al. () did not observe any change in faecal pH in dairy cows fed increasing levels of SH (3.5% to 23% of diet DM). The reduction of faecal pH with SH inclusion in diets is likely due to the bypass of SH particles from rumen which are rich in readily digestible NDF and starch.…”

Section: Resultsmentioning

confidence: 84%

See 1 more Smart Citation

Effect of particle size and partial replacement of alfalfa hay by soya bean hulls on nutrient intake, total tract digestibility and rumen degradability of diets by Holstein steers

Behgar¹,

Valizadeh

Naserian

et al. 2016

Animal Physiology Nutrition

View full text Add to dashboard Cite

This study examined the effect of alfalfa hay (AH) particle size and the replacement of soya bean hull (SH) for AH within the diet of restricted fed Holstein steers on dry matter intake (DMI), total tract digestion, ruminal digestion, ruminal pH and ammonia nitrogen content, and faecal pH. Four rumen-cannulated Holstein steers averaging 353 ± 9.6 kg of BW were assigned to a 4 × 4 Latin square experiment with four periods and a 2 × 2 factorial arrangement of treatments. Factor A was AH particle size (fine vs. coarse) and factor B was diet SH content (0% vs. 10%; substituted for AH). Steers were fed at 1% of body weight of TMR containing 400 g/kg forage and 600 g/kg concentrate. Chopping of AH to fine particles decreased (p = 0.01) amount of dietary materials retained on the medium sieve (8 mm). The inclusion of SH significantly increased (p = 0.01) materials retained on the 1.18-mm sieve and tended to decrease (p = 0.07) materials on 19-mm sieves. The inclusion of SH increased (p = 0.01) ether extract (EE) intake and increased (p = 0.07) DMI. Inclusion of SH increased (p = 0.01) EE digestion and decreased (p < 0.01) faecal pH. Neither AH particle size nor SH inclusion in diets affected (p > 0.10) the in situ ruminal degradability coefficients of DM ('a', 'b', 'c' or 'a+b'). No interaction of AH×SH was seen on nutrient intake, digestibility and in situ ruminal degradability of Holstein steers.

show abstract

Section: Resultsmentioning

confidence: 84%

“…It has been well established that replacement of a portion of hay of diet with SH decreased the mean particle size of diet (Weidner and Grant, 1994b;Slater et al, 2000) and also resulted in reduced rumination time (Weidner and Grant, 1994b) and ruminal mat consistency (Weidner and Grant, 1994a).…”

Section: Introductionmentioning

confidence: 99%

Effect of particle size and partial replacement of alfalfa hay by soya bean hulls on nutrient intake, total tract digestibility and rumen degradability of diets by Holstein steers

Behgar¹,

Valizadeh

Naserian

et al. 2016

Animal Physiology Nutrition

View full text Add to dashboard Cite

show abstract

“…Milk protein concentration was high and indicated that the diet provided sufficient amino acids to satisfy the need for milk protein synthesis. This ratio of precursor for milk synthesis increased the level of production, with a tendency to increase milk protein and lactose concentration of cows suckling longer, while milk fat concentration decreased (Slater et al 2000;Walker et al 2004). …”

Section: Effect Of Suckling Period On Feed Intakementioning

confidence: 93%

Effect of suckling period on calf growth and milk yield of Zebu cows

Sidibé-Anago

Ouédraogo

Ledin

2008

Trop Anim Health Prod

View full text Add to dashboard Cite

Eighteen multiparous Zebu cows in their third lactation and their calves were randomly allocated to three suckling periods, up to 3, 4 or 5 months of age of the calf. The cows were individually fed natural hay, cottonseed cake and molasses. At 2 months of age, all calves were separated from their mothers, and were offered cottonseed cake mixed with molasses and Mucuna hay individually. The calves stimulated milk ejection by suckling 30 seconds and suckled the residual milk for 45 minutes after milking. The dry matter intake of cows (3.68, 3.29 and 3.31% of body weight) and calves (2.88, 2.80 and 2.55% of body weight) for suckling up 3, 4 and 5 months of age, respectively, was not significantly affected by treatment and neither was the growth rate of the calves (178, 157 and 149 g/d for 3, 4 or 5 months suckling period, respectively). Cows suckling their calves up to 5 months had significantly higher milk yield and higher amount of saleable milk (1.97, 2.93 and 3.69 kg/cow/d for 3, 4 and 5 months suckling period, respectively). The fat content of the milk decreased with increasing length of the suckling period while the protein content was not affected. In conclusion, a suckling period of 5 months resulted in higher total milk production and higher amount of saleable milk but did not seem to have any effect on calf growth when the calves were supplemented.

show abstract

“…Subsequent to oats, ground WG (GW) possesses the highest starch and protein degradation extent and rate among cereals [1, 2]. If not managed properly, increased dietary GW levels are, thus, more likely to cause subacute rumen acidosis (SARA), milk fat depression, and laminitis, when compared to corn and barley grains [3, 4]. However, such a SARA risk would exist rather shortly after feeding (44% versus 60% of total starch degraded after 4-h for barley and wheat grains, resp; [5]) because wheat and barley grains have almost similar degradation patterns after few hours after feeding [1, 6].…”

Section: Introductionmentioning

confidence: 99%

Ground Wheat Grain for Midlactation Cows: Challenging a Common Wisdom

Nikkhah

Amiri

Amanloo

2012

The Scientific World Journal

View full text Add to dashboard Cite

The objective was to determine the effects of ground wheat grain (GW) inclusion rate, grinding extent (GE), and their interaction on lactating cow performance. Eight midlactation cows in 3 × 4 m individual boxes were used in a 4 × 4 replicated Latin square design study with 4 21 d periods. GW was fed at either 10% or 20% of diet dry matter (DM), as either finer or coarser particles. DM intake increased and net energy for lactation (NEL) intake tended to increase when GW was fed at 10% instead of 20% of diet DM. Milk energy yield, milk solids content and yield, and urine pH were unaffected. Fecal pH tended to increase at 20% versus 10% GW. Total tract apparent NDF, but not DM, digestibility tended to be greater for coarsely than finely GW and tended to be greater at 10% versus 20% GW. GW at 10% versus 20% of diet DM decreased blood BHBA and increased blood concentrations of total proteins and albumin. Data provide novel evidence that both finely and coarsely ground WG can be safely fed up to 20% midlactation cows. Commercial accessibility and cost will determine feeding preference of wheat grain to dairy cows.

show abstract

Effects of Starch Source and Level of Forage Neutral Detergent Fiber on Performance by Dairy Cows

Cited by 34 publications

References 29 publications

Effect of particle size and partial replacement of alfalfa hay by soya bean hulls on nutrient intake, total tract digestibility and rumen degradability of diets by Holstein steers

Effect of particle size and partial replacement of alfalfa hay by soya bean hulls on nutrient intake, total tract digestibility and rumen degradability of diets by Holstein steers

Effect of suckling period on calf growth and milk yield of Zebu cows

Ground Wheat Grain for Midlactation Cows: Challenging a Common Wisdom

Contact Info

Product

Resources

About