Determination of nutrient requirements for growth and maintenance of growing pigs under tropical condition

Paul, Souvik; Mandal, Asit Baran; Chatterjee, P. N.; Bhar, R.; Pathak, N.N.

doi:10.1017/s1751731107284228

Cited by 12 publications

(12 citation statements)

References 26 publications

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“…Thus, the activity data for milk production varied in different years. The average growth rate data of sheep, goats and pigs were taken from different publications compiled by Paul et al, 55 Mandal et al 56 and Paul et al, 67 respectively. There are no data on methane production by mithun, and thus, the methane conversion factor of cattle was used.…”

Section: Enteric Methane Emissionmentioning

confidence: 99%

Estimation of methane and nitrous oxide emissions from Indian livestock

Patra

2012

J. Environ. Monit.

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Greenhouse gas (GHG; methane and nitrous oxide) emissions from enteric fermentation and manure management of Indian livestock were estimated from the last two Indian livestock census datasets (2003 and 2007) using IPCC Tier 2 (2006) guidelines. The total annual GHG emissions from Indian livestock increased in 2007 compared to the year 2003 with an annual growth rate of 1.52% over this period. The contributions of GHG by dairy cattle, non-dairy cattle, buffaloes, goats, sheep and other animals (yak, mithun, horse, donkeys, pigs and poultry) were 30.52, 24.0, 37.7, 4.34, 2.09 and 3.52%, respectively, in 2007. Enteric fermentation was the major source of methane, accounting for 89.2% of the total GHG emissions, followed by manure methane (9.49%). Nitrous oxide emissions accounted for 1.34%. GHG emissions (CO(2)-eq. per kg of fat and protein corrected milk (FPCM)) by female animals were considerably lower for crossbred cows (1161 g), followed by buffaloes (1332 g) and goats (2699 g), and were the highest for indigenous cattle (3261 g) in 2007. There was a decreasing trend in GHG emissions (-1.82% annual growth rate) in relation to milk production from 2003 to 2007 (1818 g and 1689 g CO(2)-eq. per kg FPCM in 2003 and 2007, respectively). This study revealed that GHG emissions (total as well as per unit of products) from dairy and other categories of livestock populations could be reduced substantially through proper dairy herd management without compromising animal production. In conclusion, although the total GHG emissions from Indian livestock increased in 2007, there was a decreasing trend in GHG production per kg of milk production or animal products.

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Section: Enteric Methane Emissionmentioning

confidence: 99%

Estimation of methane and nitrous oxide emissions from Indian livestock

Patra

2012

J. Environ. Monit.

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“…Resultados semelhantes foram obtidos por Paul et al (2007) que obtiveram 0,74% de valina digestível para suínos dos 7 a 20 kg.…”

Section: Níveis De Valina Digestível (%) N Retido:n Absorvido (%)unclassified

Níveis de valina digestível para suínos machos castrados dos 15 aos 30 kg

Lohmann¹,

Pozza²,

Pozza³

et al. 2012

Arch. zootec.

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SUMMARYThe objective of this study was to evaluate the digestible valine levels for barrows from 15 to 30 kg of weight. In the first experiment, to determine the nitrogen balance, were used 20 barrows, averaging 22.88±1.19 kg of initial weight, individually allotted in metabolic cages in a randomized blocks design, consisting of five treatments (0.60, 0.67, 0.74, 0.81, 0.88% of digestible valine) and 4 replications. In the second experiment we determined animal performance in 40 barrows, with initial weight of 15.49±0.06 kg, submitted to the same treatments, experimental design and replicates used in the first experiment. The retained N: absorbed N ratio showed a quadratic effect, indicating 0.748% as an optimum level of digestible valine. Total N excretion showed a quadratic effect depending on the digestible valine levels, being reduced until 0.730% of digestible valine and from this level the N excretion increased again. The efficiency of valine utilization for weight gain decreased linearly as the digestible valine increased in the diets, and according to the Linear Response Plateau model was observed a reduction of this parameter up to 0.790% digestible valine. It was concluded that the level of 0.748% of digestible valine was the most appropriate when considering the retained N: absorbed N ratio, for barrows from 15 to 30 kg of live weight.

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“…vez que esta variável representa a relação do nitrogênio que foi ingerido e do que foi excretado nas fezes e urina, resultando no nitrogênio que é utilizado pelo animal. Resultados semelhantes foram obtidos por Paul et al (2007) que obtiveram 0,74% de valina digestível para suínos dos 7 a 20 kg.…”

Section: Níveis De Valina Digestível (%) N Retido:n Absorvido (%)unclassified

Níveis de valina digestível para suínos machos castrados dos 15 aos 30 kg

Lohmann

Pozza

et al. 2011

ARCH ZOOTEC

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O objetivo deste trabalho foi o de avaliar níveis de valina digestível para suínos machos castrados, dos 15 aos 30 kg de peso. No primeiro experimento, para determinação do balanço de nitrogênio, foram utilizados 20 suínos, machos castrados, com peso inicial de 22,88±1,19 kg, distribuídos individualmente em gaiolas de metabolismo, em delineamento experimental de blocos ao acaso, constituído de cinco tratamentos (0,60; 0,67; 0,74; 0,81 e 0,88% de valina digestível) e quatro repetições. No segundo experimento, de desempenho, foram utilizados 40 suínos, machos castrados, com peso inicial de 15,49±0,06 kg, submetidos aos mesmos tratamentos, repetições e delineamento experimental utilizados no primeiro experimento. A relação N retido:N absorvido apresentou resposta quadrática, indicando um nível ótimo de valina digestível de 0,748%. A excreção total de N apresentou efeito quadrático em função dos níveis de valina digestíveis, sendo reduzida até o nível de 0,730% de valina digestível e a partir deste nível a excreção de N aumentou novamente. A eficiência de utilização de valina, para ganho de peso reduziu de forma linear à medida que aumentaram os níveis de valina digestível nas rações, e ao utilizar o modelo linear response plateou obteve-se a redução deste parâmetro até 0,790% de valina digestível. Conclui-se que o nível de 0,748% de valina digestível foi o mais adequado, ao se considerar o N retido: N absorvido, para suínos machos castrados dos 15 aos 30 kg de peso.

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Determination of nutrient requirements for growth and maintenance of growing pigs under tropical condition

Cited by 12 publications

References 26 publications

Estimation of methane and nitrous oxide emissions from Indian livestock

Estimation of methane and nitrous oxide emissions from Indian livestock

Níveis de valina digestível para suínos machos castrados dos 15 aos 30 kg

Níveis de valina digestível para suínos machos castrados dos 15 aos 30 kg

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