The use of NIRS for prediction of intake,
digestibility and diet composition in sheep fed
mixed grain:roughage diets

Valiente, O. L.; Andueza, Donato; Vega, A. de; Olmos, G.; Muñoz, Fernando

doi:10.22358/jafs/73846/2004

Cited by 9 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although to a lesser degree, other methods that estimate pasture DMI have been used based on differences in animal mass (Horn, 1981;Le Du and Penning, 1982); components of plant waxes other than alkanes (i.e. alkenes; Lippke et al, 2002); a combination of n-alkanes and 13 C techniques and the use of near infrared spectroscopy (NIRS) systems (Valiente et al, 2004).…”

Section: Estimating Dry Matter Intake Of Grazing Cowsmentioning

confidence: 99%

Performance of lactating dairy cows fed varying levels of total mixed ration and pasture

Vibart

Fellner

Burns

et al. 2008

Journal of Dairy Research

View full text Add to dashboard Cite

Two, 8-week experiments, each using 30 lactating Holstein cows, were conducted to examine performance of animals offered combinations of total mixed ration (TMR) and high-quality pasture. Experiment 1 was initiated in mid October 2004 and Experiment 2 was initiated in late March 2005. Cows were assigned to either a 100% TMR diet (100:00, no access to pasture) or one of the following three formulated partial mixed rations (PMR) targeted at (1) 85% TMR and 15% pasture, (2) 70% TMR and 30% pasture and (3) 55% TMR and 45% pasture. Based on actual TMR and pasture intake, the dietary TMR and pasture proportions of the three PMR in Experiment 1 were 79% TMR and 21% pasture (79:21), 68% TMR and 32% pasture (68:32), and 59% TMR and 41% pasture (59:41), respectively. Corresponding proportions in Experiment 2 were 89% TMR and 11% pasture (89:11), 79% TMR and 21% pasture (79:21) and 65% TMR and 35% pasture (65:35), respectively. Reducing the proportion of TMR in the diets increased pasture consumption of cows on all PMR, but reduced total dry matter intake compared with cows on 100:00. An increase in forage from pasture increased the concentration of conjugated linoleic acids and decreased the concentration of saturated fatty acids in milk. Although milk and milk protein yields from cows grazing spring pastures (Experiment 2) increased with increasing intakes of TMR, a partial mixed ration that was composed of 41% pasture grazed in the fall (Experiment 1) resulted in a similar overall lactation performance with increased feed efficiency compared to an all-TMR ration.

show abstract

Section: Estimating Dry Matter Intake Of Grazing Cowsmentioning

confidence: 99%

Performance of lactating dairy cows fed varying levels of total mixed ration and pasture

Vibart

Fellner

Burns

et al. 2008

Journal of Dairy Research

View full text Add to dashboard Cite

show abstract

“…It has been routinely used for prediction of chemical composition and energy value of feeds (Aufrère et al, 1996), intake and digestibility (Boval et al, 2003(Boval et al, , 2004Decruyenaere et al, 2003;Valiente et al, 2004;Landau et al, 2005), faecal concentration of n-alkanes in beef cattle (Garnsworthy and Unal, 2004) and deers (Ru et al, 2002), and seems to be a promising technique for estimation of diet composition in sheep and goats (Walker et al, 1998(Walker et al, , 2002(Walker et al, , 2007Landau et al, 2004;Valiente et al, 2004).…”

Section: Introductionmentioning

confidence: 99%