scholarly journals EFFECT OF FEEDING FREQUENCY ON DRY MATTER INTAKE WEIGHT GAIN FEED CONVERSION EFFICIENCY AND ITS RELATION WITH BODY MEASUREMENTS IN LOHI LAMBS

2017 ◽  
Vol 54 (03) ◽  
pp. 689-692 ◽  
Author(s):  
Muhammad Zahid Farooq
Keyword(s):  
Weight Gain ◽  
Conversion Efficiency ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Body Measurements ◽  
Feed Conversion ◽  
Feeding Frequency ◽  
Feed Conversion Efficiency ◽  
Effect Of Feeding

Effect of defaunation on body conformation changes, wool yield and fibre characteristics of growing lambs in a hot semiarid environment

2007 ◽  
Vol 47 (7) ◽  
pp. 789 ◽  
Author(s):  
A. Santra ◽  
S. Parthasarathy ◽  
S. A. Karim
Keyword(s):  
Conversion Efficiency ◽  
Dry Matter ◽  
Body Height ◽  
Fibre Diameter ◽  
Dry Matter Intake ◽  
Wool Fibre ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Wool Yield ◽  
Fibre Characteristics

The efficacy of sodium laurel sulfate as a defaunating agent, as well as effect of defaunation on body confirmation changes, wool yield and fibre characteristics, were evaluated in growing lambs in a 90-day feeding experiment. Forty-five Malpura male weaner (90-day old) lambs were divided into three equal groups: defaunated, refaunated and faunated. The lambs of defaunated and refaunated groups were defaunated by oral administration of sodium laurel sulfate at the rate of 8 g/100 kg liveweight as a 10% aqueous solution. Six days after defaunation, all the lambs of the refaunated group were refaunated by inoculation of 100 mL rumen content per lamb drawn from a normal faunated sheep. All the experimental lambs were maintained under stall feeding on a complete feed containing 50 : 50 Pala (Ziziphus nummularia) leaf and concentrate. Treatments did not differ in intake of dry matter, digestible crude protein or digestible energy. Body height and paunch girth were greater (P < 0.01) in defaunated compared to refaunated and faunated lambs. With similar dry matter intake in the three experimental groups, liveweight gain, feed conversion efficiency and wool yield were higher (P < 0.01) in defaunated lambs. The wool fibre diameter and medullation percentage were higher (P < 0.01) in defaunated than refaunated and faunated lambs. It was concluded from the study that, with similar dry matter intake and plane of nutrition, the growth rate, feed conversion efficiency and wool yield were higher in defaunated lambs, as compared to refaunated and faunated lambs. Higher paunch girth in defaunated lambs resulted in a pot-bellied appearance of the animals.

Performance of steers fed grain sorghum (Sorghum bicolor) of varying sorghum midge (Contarinia sorghicola) resistance

1993 ◽  
Vol 33 (1) ◽  
pp. 21
Author(s):  
DB Strachan ◽  
RD Dillon ◽  
RG Henzell
Keyword(s):  
Sorghum Bicolor ◽  
Conversion Efficiency ◽  
Dry Matter ◽  
Grain Sorghum ◽  
Dry Matter Intake ◽  
Feed Conversion ◽  
Contarinia Sorghicola ◽  
Feed Conversion Efficiency ◽  
Sorghum Midge ◽  
Moderate Resistance

This experiment examined the association between the level of sorghum midge resistance of a grain sorghum hybrid and its ultilisation by cattle. Twenty-five Hereford steers were placed in individual pens and fed a feedlot ration (80% grain) for 8 weeks containing 1 of the following grain sorghum hybrids: Pacific 810, DK55plus (susceptible to midge); Barrier (low resistance to midge); AQL39/QL36, DK470 (moderate resistance to midge). There was no significant (P>0.05) difference between the hybrids in dry matter intake, liveweight gain, feed conversion efficiency, apparent nitrogen digestibility, and digestibility of the dry matter. No tannins were detected in the grain of any of the hydrids. It was concluded that the development of grain sorghum hybrids resistant to sorghum midge will not affect the utilisation of the grain in steers.

Effect of Feeding Milk Replacer on Dry Matter Intake and Feed Efficiency in Holstein x Kankrej Crossbred Calves

2017 ◽  
Vol 12 (3) ◽  
Author(s):  
P. M. Lunagariya ◽  
R. Shukla ◽  
S. V. Shah ◽  
P. R. Pandya ◽  
S. S. Pandya ◽  
...  
Keyword(s):  
Body Weight ◽  
Conversion Efficiency ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Milk Replacer ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Feed Cost ◽  
Whole Milk ◽  
Commercial Milk

An experiment was conducted on HF x Kankrej crossbred calves to study the effect of formulated milk replacer on nutrients intake, feed conversion efficiency, cost of feeding and disease incidence. Eighteen newly born calves of either sex were selected. The calves were fed colostrum up to 3 days and from 4th to 9th day whole milk at the rate of 12.5% of body weight. From 10th day the calves were randomly distributed in to three treatment group. The calves of T1 group received whole milk as per routine farm practice; T2 group was fed whole milk and commercial milk replacer as per manufacturer’s recommendation, whereas T3 group calves received formulated milk replacer @ 12.5 % of body weight with upper limit of 4 kg per day. The overall initial (day 10) and final (day 94) body weight of calves were 27.71±6.53 and 44.96±10.60 kg, respectively. Overall average dry matter intake (DMI) per day, as per cent body weight and per kg metabolic body weight (W0.75) was 0.52±0.02 kg, 1.45±0.03 kg and 35.34±0.78 g, respectively. The dry matter intake in T1 was significantly higher followed by T2 than T3. Overall intake of total digestible nutrients (TDN) on daily, per cent body weight and per kg W0.75 basis was 0.546±0.02 kg, 1.28±0.04 kg and 31.03±0.87 g, respectively. The DM intake for each kg gain was significantly lower in T3 (3.07 kg) and T1 (3.02) than T2 (4.79 kg) calves. The feed conversion efficiency (TDN intake kg/kg gain) was significantly superior in T3 (2.22) followed by T2 (4.23), whereas in T1 (2.95) it was intermediate. The feed cost and total rearing cost were lower (p less than 0.05) for farm formulated milk replacer (T3) than commercial milk replacer (T2) and was highest for milk feeding (T1) group. The feed cost and total rearing cost per unit gain in weight were also lower (p less than 0.05) for farm formulated milk replacer (T3) than other two groups. The disease incidences were intermediate in farm formulated milk replacer (T3). Thus, raising crossbred calves on farm formulated milk replacer can be a better option for economic gain of farmers, health of calves and (sparing) more milk for humans.

scholarly journals Inclusion of different levels of inulin on productive parameters and intestinal morphology in fattening guinea pigs (Cavia porcellus)

2021 ◽  
Vol 51 (11) ◽  
Author(s):  
Fernando Carcelén Cáceres ◽  
Felipe San Martín Howard ◽  
Miguel Ara Gómez ◽  
Sandra Bezada Quintana ◽  
Ana Asencios Méndez ◽  
...  
Keyword(s):  
Weight Gain ◽  
Guinea Pigs ◽  
Dry Matter ◽  
Intestinal Morphology ◽  
Dry Matter Intake ◽  
Human Consumption ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Linear Effect ◽  
Zinc Bacitracin

ABSTRACT: This study evaluated the effect of the three inulin levels (0.1%, 0.2%, 0.4%) supplemented as a substitute for an antibiotic growth promoter (AGP, zinc bacitracin) and control in guinea pigs raised for human consumption. Fifty 14-day-old male guinea pigs were used. Productive parameters (weight gain, total dry matter intake, and feed conversion ratio (FCR)) and intestinal morphology of the duodenum, jejunum, and ileum at slaughter (70 days of age) were evaluated. An inverse relationship was observed between inulin levels and FCR (linear effect; P = 0.006). There was no statistically significant effect of the treatments on total dry matter intake and weight gain (P > 0.05). A linear effect of the inulin level on the villi’s length (VL), villi’s width (VW), and length/depth ratio (VL/DC) in the duodenum; VW in the jejunum; and VL in the ileum (P <0 .05) was reported. In conclusion, a linear effect of the increasing doses of inulin was found on the FCR and the morphological parameters of the duodenum’s integrity, and no differences in the effects of the inulin added to the diet and the treatment with AGP were found.

Feed conversion efficiency as a key determinant of dairy herd performance: a review

2007 ◽  
Vol 47 (6) ◽  
pp. 645 ◽  
Author(s):  
D. E. Beever ◽  
P. T. Doyle
Keyword(s):  
Milk Production ◽  
Conversion Efficiency ◽  
Dry Matter ◽  
Dairy Herd ◽  
Farming System ◽  
Feed Conversion ◽  
Dairy Farmers ◽  
Feed Conversion Efficiency ◽  
Stage Of Lactation ◽  
Feed Costs

This paper focuses on dairy herd performance in the United Kingdom and southern Australia, where feed costs have been estimated to comprise between 40 and 67% of the total costs of production. The efficiency of conversion of grazed pasture, home grown forages and purchased feeds into milk has a major bearing on farm profit. Feed conversion efficiency (FCE), defined as ‘kg milk of standardised composition with respect to protein and fat concentrations produced per kg feed dry matter consumed’, is a useful measure of the performance of a farm feeding system, but is seldom used by dairy farmers. It could also be defined as ‘g protein plus fat produced per kg feed dry matter consumed’, given that farmers are often paid for these components. The value of estimating FCE on an annual or shorter-term basis is discussed in relation to accepted principles of feed utilisation and dairy cow energy requirements. The implications of feed intake, conversion of ingested nutrients into absorbed nutrients and the subsequent utilisation of these nutrients for milk production or other purposes, as well as the effects of stage of lactation on FCE, are reviewed. Measuring FCE and identifying opportunities for improvement is relatively straightforward in housed feeding systems, but is more problematic under grazing. Hence, approaches and the key assumptions in estimating FCE in grazing situations, as well as possible limitations of these estimates, are discussed. Finally, a case study examining the potential impact of improved nutritional strategies on FCE and on margin over feed costs is presented. It is concluded that, to remain profitable, dairy farmers need to have a sound knowledge of cow nutrition, along with appropriate measures of FCE to monitor the performance of their milk production system. Such indicators of the biological performance of the farming system are most useful when used in conjunction with appropriate measures of economic performance.

Impact of feeding balanced rations on milk production, methane emission, metabolites and feed conversion efficiency in lactating cows

2016 ◽  
Author(s):  
P. L. Sherasia ◽  
B. T. Phondba ◽  
S. A. Hossain ◽  
B. P. Patel ◽  
M. R. Garg
Keyword(s):  
Milk Production ◽  
Conversion Efficiency ◽  
Methane Emission ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Lactating Cows ◽  
Microbial Nitrogen ◽  
Enteric Methane ◽  
Effect Of Feeding ◽  
Phosphorus Intake

A field study on early lactating crossbred cows (n=35) was conducted to evaluate the effect of feeding balanced rations on milk production, enteric methane emission, metabolites and feed conversion efficiency (FCE). In comparison to requirements, the dietary intake of protein and energy were higher by 25.0 and 12.7% whereas, calcium and phosphorus intake were lower by 30.0 and 27.0%, respectively. Balanced feeding improved daily 4% FCM yield by 0.7 kg/cow (P<0.05) and intestinal flow of microbial nitrogen (N) by 37.0% (P<0.01), whereas, reduced (P<0.01) feeding cost by 17.0% and enteric methane emission (g/d/cow and g/kg milk yield) by 14.6 and 18.1%, respectively. Level of IgG, IgA, IgM and uric acid content increased significantly, whereas BUN level reduced (P<0.01) from 18.2 to 15.0 mg/dl. FCE improved (P<0.01) from 0.8 to 1.0 and efficiency of microbial protein synthesis also improved (P<0.01) by 63.6% owing to feeding of balanced rations indicating better performance of cows. Present study indicates that feeding nutritionally balanced rations improved milk production, feed conversion efficiency and reduced methane emission in lactating cows under field conditions.

scholarly journals Requirement of young pigs for apparent ileal digestible tryptophan

1995 ◽  
Vol 43 (3) ◽  
pp. 287-296
Author(s):  
J.B. Schutte ◽  
A.J.M.A. Verstraten ◽  
N.P. Lenis ◽  
J. De Jong ◽  
J.T.M. Van Diepen
Keyword(s):  
Weight Gain ◽  
Conversion Efficiency ◽  
Control Diet ◽  
Basal Diet ◽  
Feed Conversion ◽  
Optimal Weight ◽  
Feed Conversion Efficiency ◽  
Young Pigs ◽  
Pig Performance

In 5 growth trials with a total of 420 pigs, tryptophan requirements from 20 to 40 kg liveweight were estimated. L-Tryptophan 0, 0.15, 0.30, 0.45 and 0.60 g/kg was added to a basal diet containing tapioca, barley and maize, with CP 162 g/kg and tryptophan 1.65 g/kg. The control diet was supplemented with lysine, methionine plus cystine, threonine, isoleucine, valine and histidine to assure that only tryptophan was limiting pig performance. Diets were freely given as pellets. Total tryptophan was about 2.10 g/kg for optimal weight gain and feed conversion efficiency in a diet containing NE 9.5 MJ/kg, corresponding with apparent ileally digestible tryptophan 1.77 g/kg.

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