干旱区生态环境知识资源中心(Arid): Sheep Methane Emission on Semiarid Native Pasture-Potential Impacts of Either Zinc Sulfate or Propylene Glycol as Mitigation Strategies

Arid

DOI	10.3390/ani10030395
	Sheep Methane Emission on Semiarid Native Pasture-Potential Impacts of Either Zinc Sulfate or Propylene Glycol as Mitigation Strategies
	Costa, Helio 1,2,3; Saliba, Eloisa 2; Bomfim, Marco 4; Lana, Angela Maria 2; Borges, Ana Luiza 2; Landim, Aline 1; Mota, Carlos 1; Tonucci, Rafael 4; Faciola, Antonio P.5
通讯作者	Costa, Helio
来源期刊	ANIMALS
ISSN	2076-2615
出版年	2020
卷号	10 期号:3
英文摘要	Simple Summary Feed availability for small ruminant production in the Brazilian semi-arid region is characterized by the seasonality of forage production over the year. Large variations of methane (CH4) production have been reported among forage types and are mainly explained by the rate of fermentation of plant cell contents and the presence of various plant secondary compounds, notably in heterogeneous pasture. The aim of this study was to evaluate the effects of Zinc sulfate and propylene glycol (PG) on CH4 emission, nutrient intake, digestibility, and production in sheep grazing on a native Caatinga (Brazilian semi-arid savannah) pasture during the rainy season (from March to June 2014). Fifteen mixed Santa Ines sheep were distributed into three treatments (control, Zn, and propylene glycol supplement) in this 112-day study. CH4 emission was measured using the SF6 tracer gas technique. Across the months of the trial, organic matter (OM) and neutral detergent fiber (NDF) intakes were greater in March, while the greatest emission of CH4 (g/day) was observed in May. Total CH4 emission (kg) from March to June (112 days of evaluation) was greater in PG. In conclusion, our results indicate that Zn and PG have no beneficial effects in mitigating sheep CH4 emission when grazing Caatinga-native pasture in the rainy season. Abstract The aim of this study was to evaluate the effects of Zinc sulfate and propylene glycol (PG) on methane (CH4) emission, nutrient intake, digestibility, and production in sheep grazing on a native Caatinga (Brazilian semi-arid savannah) pasture during the rainy season (from March to June 2014). Fifteen mixed Santa Ines sheep, all non-castrated males, with initial body weight of 19.8 +/- 1.64 kg, and 4 +/- 0.35 months of age, were distributed in a complete randomized design into three treatments: control (CT)-concentrate supplemented at 0.7% of body weight; CT + 300 mg of Zn/day; and CT + 2.5 mL of propylene glycol/kg LW0.75/day. Measurements were done in four periods during the rainy season, with 28 days of interval between each measurement. CH4 emission was measured using the SF6 tracer gas technique. CH4 emission per day was greater in PG than in CT and Zn (p < 0.05). However, no additive effect was observed on the intakes of organic matter (OM) and neutral detergent fiber (NDF), or on CH4 emission expressed as a function of OM and NDF intakes (p > 0.05). Across the months of the trial, OM and NDF intakes were greater in March, while the greatest emission of CH4 (g/day and g by g/OM intake) was observed in May (p < 0.05). Total CH4 emission (kg) from March to June (112 days of evaluation) was greater in PG compared with CT and Zn (p < 0.05). Zinc and PG had no effect on total CH4 emission when it was expressed per unit of body weight gain or carcass production (p > 0.05). The results of this study indicate that Zinc sulfate and propylene glycol have no beneficial effects in mitigating sheep CH4 emission. The CH4 emissions originated from sheep grazing native Caatinga pasture change throughout the rainy season due to fluctuations in availability and quality of pasture biomass. Moreover, the inclusion of zinc sulfate or propylene glycol did not improve animal feed intake, nutrient digestibility, and animal performance.
英文关键词	Caatinga CH4 rainy season SF6
类型	Article
语种	英语
国家	Brazil ; USA
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000529378800028
WOS关键词	NUTRIENT UTILIZATION ; SUPPLEMENTAL ZINC ; FORAGE INTAKE ; DAIRY-COWS ; RUMEN ; METABOLISM ; DIGESTION ; 1,2-PROPANEDIOL ; FERMENTATION ; PREDICTION
WOS类目	Agriculture, Dairy & Animal Science ; Veterinary Sciences
WOS研究方向	Agriculture ; Veterinary Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318867
作者单位	1.Vale do Acarau State Univ, Dept Anim Sci, Sobral 62040370, Brazil; 2.Fed Univ Minas, Dept Anim Sci, Belo Horizonte 30123970, MG, Brazil; 3.Conselho Nacl Dev Cient & Tecnol CNPq, Reg Sci Dev Scholarship Natl Sci & Technol Dev Co, Level C DCR FUNCAP CNPq, Brasilia 38706400, DF, Brazil; 4.Embrapa Goats & Sheep, Estr Sobral Groairas,Km 04,Caixa Postal 145, Sobral 62010970, Brazil; 5.Univ Florida, Dept Anim Sci, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Costa, Helio,Saliba, Eloisa,Bomfim, Marco,et al. Sheep Methane Emission on Semiarid Native Pasture-Potential Impacts of Either Zinc Sulfate or Propylene Glycol as Mitigation Strategies[J],2020,10(3).
APA	Costa, Helio.,Saliba, Eloisa.,Bomfim, Marco.,Lana, Angela Maria.,Borges, Ana Luiza.,...&Faciola, Antonio P..(2020).Sheep Methane Emission on Semiarid Native Pasture-Potential Impacts of Either Zinc Sulfate or Propylene Glycol as Mitigation Strategies.ANIMALS,10(3).
MLA	Costa, Helio,et al."Sheep Methane Emission on Semiarid Native Pasture-Potential Impacts of Either Zinc Sulfate or Propylene Glycol as Mitigation Strategies".ANIMALS 10.3(2020).