Effects of different fresh-cut forages and their hays on feed intake, digestibility, heat production, and ruminal methane emission by Boer × Spanish goats1

2012 ◽  
Vol 90 (8) ◽  
pp. 2754-2762 ◽  
Author(s):  
R. Puchala ◽  
G. Animut ◽  
A. K. Patra ◽  
G. D. Detweiler ◽  
J. E. Wells ◽  
...  
Keyword(s):  
Heat Production ◽  
Methane Emission ◽  
Feed Intake ◽  
Fresh Cut

Effects of Sericea Lespedeza on Feed Intake, Digestion, and Ruminal Methane Emission in Hair Sheep

2021 ◽  
Vol 99 (Supplement_2) ◽  
pp. 41-41
Author(s):  
Luana L Ribeiro ◽  
Ryszard Puchala ◽  
Arthur L Goetsch
Keyword(s):  
Methane Emission ◽  
Feed Intake ◽  
Dry Matter ◽  
Coconut Oil ◽  
Mixed Effects ◽  
Repeated Measure ◽  
Lespedeza Cuneata ◽  
Hair Sheep ◽  
Initial Body Weight ◽  
Sericea Lespedeza

Abstract Eighteen Katahdin (initial body weight of 74 kg; SEM=1.8) and 18 St. Croix ewes (55 kg; SEM=1.3) were used in an experiment with four 6-wk periods to determine effects of dietary level of Sericea lespedeza (Lespedeza cuneata) containing 5.8% condensed tannins (dry matter; DM) and other supplemental ingredients on feed intake, digestion, and ruminal methane emission. Diets were consumed ad libitum and included a concentrate supplement at 0.45% BW (DM). Alfalfa was the basal forage for control (CON), ionophore (ION; lasalocid at 33 mg/kg DM), coconut oil (3%; CCO), and soybean oil (3%; SBO) diets, and forage in moderate- and high-lespedeza diets was a 1:1 mixture of alfalfa and lespedeza and all lespedeza, respectively (MSL and HSL, respectively). Data were analyzed with a 2 x 6 factorial arrangement of treatments, period as a repeated measure, and a mixed effects model. Digestion and methane emission were determined in weeks 4, 10, 16, and 22. Total DM intake was similar among treatments (P = 0.070) but numerically greatest for HSL (1,197, 1,297, 1,491, 1,203, 1,195, and 1,207 g/d; SEM=81.1), OM digestibility ranked (P < 0.05) CON, ION, CCO, and SBO > MSL > HSL (69.2, 57.6, 50.3, 66.3, 66.0, and 68.7%; SEM=1.57), and digestible OM intake was similar among treatments (P = 0.517; 697, 607, 589, 598, 635, and 690 g/d for CON, MSL, HSL, ION, CCO, and SBO, respectively; SEM=50.4). There were no interactions involving time in ruminal methane emission, which was greatest among treatments for CON (P < 0.05) in MJ/d (1.39, 0.93, 0.90, 0.92, 0.85, and 0.96; SEM=0.069) and relative to digestible energy intake (20.6, 15.7, 16.8, 16.1, 13.7, and 13.9% for CON, MSL, HSL, ION, CCO, and SBO, respectively; SEM=1.223). In conclusion, dietary inclusion of Sericea lespedeza may offer a natural and sustainable means of decreasing ruminal methane emission by hair sheep as previously shown in goats, with a magnitude of impact similar to that of some other supplemental dietary ingredients.

scholarly journals Estimation of metabolic heat production and methane emission in Sahiwal and Karan Fries heifers under different feeding regimes

2016 ◽  
Vol 9 (5) ◽  
pp. 496-500 ◽  
Author(s):  
Sunil Kumar ◽  
S. V. Singh ◽  
Priyanka Pandey ◽  
Narendra Kumar ◽  
O. K. Hooda
Keyword(s):  
Heat Production ◽  
Methane Emission ◽  
Metabolic Heat Production ◽  
Metabolic Heat ◽  
Feeding Regimes ◽  
Karan Fries

scholarly journals Effects of Feed Intake and Behavior on the Relationship between Heart Rate and Heat Production, and the Evaluation of Energy Balance in Holstein Heifers

1993 ◽  
Vol 64 (4) ◽  
pp. 403-410 ◽  
Author(s):  
Takaaki MATSUMOTO ◽  
B. P. PURWANTO ◽  
Fumio NAKAMASU ◽  
Toshio ITO ◽  
Sadaki YAMAMOTO
Keyword(s):  
Heart Rate ◽  
Energy Balance ◽  
Heat Production ◽  
Feed Intake ◽  
And Behavior ◽  
The Relationship

Heat tolerance in dehydrated steers

1966 ◽  
Vol 66 (1) ◽  
pp. 57-60 ◽  
Author(s):  
W. Bianca
Keyword(s):  
Body Weight ◽  
Respiratory Rate ◽  
Skin Temperature ◽  
Heat Tolerance ◽  
Normal Level ◽  
Heat Production ◽  
Feed Intake ◽  
Metabolic Heat Production ◽  
Metabolic Heat ◽  
Initial Rise

Six steers kept in an environment of 15°C. were deprived of water for four consecutive days. This treatment, by depressing appetite, caused a reduction in voluntary hay intake to one-quarter of its normal level and a decrease in body weight by 10%.In spite of this reduction in feed intake, which must have been accompanied by a fall in metabolic heat production, the animals were less able to tolerate heat than when they were normally watered: during 4 hr. exposures to temperatures of 40.0°C. dry bulb and 32.5°C. wet bulb the waterdepleted animals showed higher values of rectal and skin temperature. This was associated with a slower initial rise and lower final values of respiratory rate (130 versus 155 respirations/min.).

scholarly journals Energy expenditure related to the act of eating in Granadina goats given diets of different physical form

1997 ◽  
Vol 77 (3) ◽  
pp. 417-426 ◽  
Author(s):  
M. Lachia ◽  
J. F. Aguilera ◽  
Late C. Prieto
Keyword(s):  
Body Weight ◽  
Energy Expenditure ◽  
Heat Production ◽  
Energy Cost ◽  
Alimentary Tract ◽  
Oral Feeding ◽  
Respiration Chamber ◽  
Physical Form ◽  
Per Se ◽  
Fresh Cut

The energy cost of eating was measured in four goats averaging 38 kg and fitted with rumen cannulas. Heat production (HP) was estimated in each goat over restricted periods of approximately 15 min while standing and eating continuously in a confinement respiration chamber. The animals were given feeds of different nature and physical form ranging from shrubs to concentrates. The energy cost of eating was calculated from the increment in HP above the average HP during the prefeeding period. The energy cost was related to the type and amount of feed consumed and also to the time spent eating. In a parallel experiment, similar amounts of the feeds eaten normally (oral feeding) were introduced into the rumen through a fistula. The increases in HP during and after fistula-feeding were negligible, which indicates that all of the increase in HP during eating is to be attributed to the energy cost of eating per se, mainly to theact of food prehension, mastication and propulsion in the alimentary tract. The rate of ingestion (g DM/min) ranged from 6·3 for fresh cut lucerne (Medicago sativa) to 46-99 for concentrates. The energy cost of eating (J/kg body weight (BW) per g DM) averaged 7·08 for fresh cut lucerne, 9·02 for roughages and 1·55 for concentrates and was 2·24 and 4·75 for pelleted and chopped lucerne hay respectively. When theenergy cost was expressed as a function of time spent eating, it ranged from 45 to 144 J/kg BW per min, depending on the physical form of the feed.

scholarly journals Effect of standing and lying behaviors on heat production of dairy heifers differing in feed intake levels

1993 ◽  
Vol 6 (2) ◽  
pp. 271-274 ◽  
Author(s):  
B. P. Purwanto ◽  
T. Matsumoto ◽  
F. Nakamasu ◽  
T. Ito ◽  
S. Yamamoto
Keyword(s):  
Heat Production ◽  
Feed Intake ◽  
Dairy Heifers

scholarly journals Genome-wide association studies for methane emission and ruminal volatile fatty acids using Holstein cattle sequence data

2020 ◽  
Author(s):  
Ali Jalil Sarghale ◽  
Mohammad Moradi Shahrebabak ◽  
Hossein Moradi Shahrebabak ◽  
Ardeshir Nejati Javaremi ◽  
Mahdi Saatchi ◽  
...  
Keyword(s):  
Methane Emission ◽  
Feed Intake ◽  
Volatile Fatty Acids ◽  
Sequence Data ◽  
Association Studies ◽  
Olfactory Receptors ◽  
Significant Snps ◽  
Valeric Acid ◽  
Genome Wide Association Studies ◽  
Genome Wide

Abstract Background: Methane emission by ruminants has contributed considerably to the global warming and understanding the genomic architecture of methane production may help the livestock producers to reduce the methane emission from the livestock production system. The goal of our study was to identify genomic regions affecting the predicted methane emission (PME) from volatile fatty acids (VFAs) indicators and VFA traits using imputed whole-genome sequence data in Iranian Holstein cattle. Results: Based on the significant-association threshold (p < 5 × 10−8), 33 single nucleotide polymorphisms (SNPs) were detected for PME per kg milk (n=2), PME per kg fat (n=14), and valeric acid (n=17). Besides, 69 genes were identified for valeric acid (n=18), PME per kg milk (n=4) and PME per kg fat (n=47) that were located within 1 Mb of significant SNPs. Based on the gene ontology (GO) term analysis, six promising candidate genes were significantly clustered in organelle organization (GO:0004984, p = 3.9 × 10-2) for valeric acid, and 17 candidate genes significantly clustered in olfactory receptors activity (GO:0004984, p = 4 × 10-10) for PME traits. Annotation results revealed 31 quantitative trait loci (QTLs) for milk yield and its components, body weight, and residual feed intake within 1 Mb of significant SNPs. Conclusions: Our results identified 33 SNPs associated with PME and valeric acid traits, as well as 17 olfactory receptors activity genes for PME traits related to food preference and feed intake. Identified SNPs in this study were close to 31 QTLs for milk yield and its components, body weight, and residual feed intake traits. In addition, these traits had high correlations with PME trait. Overall, our findings suggest that marker-assisted and genomic selection could be used to improve the difficult and expensive-to-measure phenotypes such as PME. Moreover, prediction of methane emission by VFA indicators could be useful for increasing the size of the reference population required in genome-wide association studies and genomic selection.

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