Feed Evaluation and Ration Calculation Based on Net EnergyFAT

Nehring, K.; Haenlein, G.F.W.

doi:10.2527/jas1973.365949x

Cited by 43 publications

(19 citation statements)

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“…The feed efficiency ratios obtained in the present study were higher when compared to the results of many workers who obtained feed efficiency ratios varying from 4.65 to 7.70 in crossbred pigs when they fed either standard ration or rations containing various levels of different by-products (Morgan, et al, 1975;Nehring andHaenlein, 1973 andNoblet, et al, 1987). However, the feed efficiency ratio obtained in the present studies is in close agreement with those of 3.78 to 4.16 (13) who added 40 to 70 % wheat bran in the rations of middle white Yorkshire piglets.…”

Section: Resultscontrasting

confidence: 81%

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Study the Effect of Different Levels of Protein and Energy Diet on the Growth, Performance and Economics of Cross Bred (T&D) Piglets Reared in Godda District of Jharkhand, India

Kumar¹,

raj²,

Shekhar³

2018

Int.J.Curr.Microbiol.App.Sci

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Section: Resultscontrasting

confidence: 81%

“…Similar trend was noted in cost of production by various workers when fed rations containing different agro-industrial by-products to many exotic pig (Campbell, 1987;Morgan. et al, 1975;Nehring andHaenlein, 1973 andRanjhan et al, 1971).…”

Section: Resultsmentioning

confidence: 99%

Study the Effect of Different Levels of Protein and Energy Diet on the Growth, Performance and Economics of Cross Bred (T&D) Piglets Reared in Godda District of Jharkhand, India

Kumar¹,

raj²,

Shekhar³

2018

Int.J.Curr.Microbiol.App.Sci

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“…Amino acids were analysed according to Spackman and colleagues (1958) on an ion-exchange column using high-performance liquid chromatography. The metabolizable energy (ME) content was calculated from chemical analysis data using the formula of Nehring and Haenlein (1973): ME (kcal/kg * ) = 4.26X 1 + 9.5X 2 + 4.23X 3 + 4.20X 4…”

Section: Feed and Ingredient Analysismentioning

confidence: 99%

Effect of Scavenging and Supplementation of Lysine and Methionine on the Feed Intake, Performance and Carcase Quality of Improved Dual-Purpose Growing Chickens

Minh

Ogle

2005

Trop Anim Health Prod

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An experiment was conducted with 192 improved dual-purpose chickens from 4 to 12 weeks of age to evaluate the effects of management system (confinement and scavenging) and amino acid supplementation (with and without lysine and methionine) of a low-protein diet on the feed and nutrient intake, performance and carcase quality of improved chickens. Mean daily dry matter (DM), crude protein and metabolizable energy intakes were higher for the confined birds (65 g, 13.3 g and 966 kJ, respectively) than for the scavenging birds (58 g, 12.0 g and 868 kJ, respectively) (p < 0.001) and higher for the unsupplemented (63.3 g, 13.0 g and 945 kJ, respectively) than for the supplemented birds (59.5 g, 12.2 g and 889 kJ, respectively) (p < 0.001). Mean DM intake was 68.0 and 54.9 g/day for the males and females (p < 0.001), respectively. Average daily weight gains (ADG) were higher for scavenging (26.9g) than for confined birds (23.9g) (p < 0.001), higher for supplemented (27.6 g) than for unsupplemented birds (23.2 g) (p < 0.001) and higher for males (27.5 g) than for females (23.3 g) (p < 0.001). Carcase, breast and thigh percentages were higher for supplemented than for unsupplemented birds (p < 0.001) and higher for scavenging than for confined birds (p < 0.001). Abdominal fat percentage was significantly lower for the scavenging treatments compared to the corresponding confined treatments (p < 0.001). Feed conversion ratios (kg feed/kg gain) and feed costs/kg gain were lower for the scavenging than for the confinement treatments, and lower for the supplemented than for the unsupplemented birds (p < 0.001). Supplementation of lysine and methionine in diets that were suboptimal in terms of protein and essential amino acids improved performance and carcase quality and reduced feed costs, in particular of the confined growers.

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“…In vivo digestibility coefficients were applied to estimate the digestible energy content of the pasture using the equation of Hoffmann and Schiemann (1980). The metabolizable energy content of the herbage was determined by a method proposed by Nehring and Haenlein (1973) and the French UFL content was measured according to Vermorel(l988). The maintenance requirement for grazing animals was estimated by increasing the maintenance requirement by 20 per cent (Bocquier, et a f .…”

Section: In Vivo Determinationsmentioning

confidence: 99%

Avoidance of degradation of alpine pasture through grazing management: Investigations of change in vegetation nutrition characteristics as a consequence of sheep grazing at different periods of the growing season

Andrighetto¹,

Cozzi²,

Zancan³

et al. 1993

Land Degrad Dev

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The maintenance of animal husbandry in mountain areas can prevent the general degradation of the landscape due to the disuse of pastures and meadows. This study investigated the changes over the productive season of the nutritional characteristics of an Alpine pasture with the objective of maintaining grazing sheep fed only on the available herbage.Four homogeneous areas of an Alpine pasture located in northeast Italy were cut at the end of June, July, August and September, simulating different grazing periods by the animals. The herbage was sampled to estimate the botanical and chemical composition and fed to four Lamon breed wethers (76.5 kg average bodyweight) measuring voluntary intake, digestibility and energy value. The botanical composition of the pasture changed as the vegetative season advanced, with a progressive increase in grass species. The protein content decreased from 16.3 per cent dry matter in the first grazing period, to 9.6, 9.9 and 7.9 per cent, respectively, in the following, while the neutral detergent fibre increased from 62.1 per cent in the first period to 78.4, 77.7 and 79.4 per cent in July, August and September, respectively.The nutritional evaluation of the forage material was carried out using four Lamon wethers housed in single metabolic cages. The voluntary intake of herbage was 1151 g d-' at the end of June, decreasing significantly to values below the recommended requirement for maintenance in the subsequent periods of the study. No selectivity was observed for specific botanical species. The in vivo digestibility of the herbage was lowered by the delay in the use of the pasture and the resulting energy intake met the recommended maintenance requirements for grazing only in the earlier period of pasture consumption. The late use of the pasture and the corresponding underfeeding of the animals would necessitate a feed supplementation to limit excessive loss of bodyweight. The conclusion is that the objective of maintaining grazing animals in mountain areas without any supplementation can be carried out exclusively by adopting an efficient grazing management able to provide good quality pasture throughout the vegetative season.

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Feed Evaluation and Ration Calculation Based on Net EnergyFAT

Cited by 43 publications

References 0 publications

Study the Effect of Different Levels of Protein and Energy Diet on the Growth, Performance and Economics of Cross Bred (T&D) Piglets Reared in Godda District of Jharkhand, India

Study the Effect of Different Levels of Protein and Energy Diet on the Growth, Performance and Economics of Cross Bred (T&D) Piglets Reared in Godda District of Jharkhand, India

Effect of Scavenging and Supplementation of Lysine and Methionine on the Feed Intake, Performance and Carcase Quality of Improved Dual-Purpose Growing Chickens

Avoidance of degradation of alpine pasture through grazing management: Investigations of change in vegetation nutrition characteristics as a consequence of sheep grazing at different periods of the growing season

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