干旱区生态环境知识资源中心(Arid): Energy and protein requirements for maintenance and weight gain of Caninde goats supplemented on pasture in the semi-arid region

Arid

DOI	10.1016/j.smallrumres.2023.107110
	Energy and protein requirements for maintenance and weight gain of Caninde goats supplemented on pasture in the semi-arid region
	de Lima Junior, Valdi; de Medeiros, Ariosvaldo Nunes; Costa, Roberto Germano; da Silva, Divan Soares; Batista, Angela Maria Vieira; de Souza, Cicilia Maria Silva; Marques, Carlo Aldrovandi Torreao; de Araujo, Marcos jacome; Bezerra, Leilson Rocha; Dias-Silva, Tairon Pannunzio
通讯作者	de Lima, V Jr
来源期刊	SMALL RUMINANT RESEARCH
ISSN	0921-4488
EISSN	1879-0941
出版年	2023
卷号	229
英文摘要	The purpose of this study was to estimate the carcass composition, and energy and protein requirements for maintenance and weight gain of Caninde ' goats supplemented on pasture in a semi-arid region. Forty-six castrated animals, with initial body weight (BW) of 15.7 +/- 0.96 kg, grazing in Caatinga were used. Six animals were slaughtered at the beginning of the experiment representing the initial carcass composition (reference animals; 16.1 +/- 1.15 kg BW), while the other animals were randomly distributed in four treatments (concentrate sup-plementation at 0%, 0.5%, 1.0%, and 1.5% BW), with ten animals per treatment. When one of the animals of each group reached 25 kg BW, all animals in that group were slaughtered. The whole empty body was weighed, ground, homogenized, and sampled for further chemical analyses. The level of supplementation influenced dry matter intake, retained energy, and body weight gain of Caninde ' goats. The energy (kcal/kg) and fat (g/kg EBW) contents in the carcass of goats of 15, 20, and 25 kg were 2.29 and 86.11, 2.39 and 113.48, and 2.47 and 140.53, respectively. The minimum nitrogen losses were 188 mg N/EBW0.75. The net and metabolizable energy for maintenance were 72.11 kcal/EBW0.75/day and 2.19 g/kg EBW0.75/day, respectively. The net and metabolizable protein requirements were 2.19 and 1.88 g/kg EBW0.75, respectively. The net energy and protein requirements for weight gain ranged from 2.61 to 2.81 Mcal/kg EBW gain and 194.37-222.55 g protein/kg EBW, respectively, for animals from 15 to 25 kg BW. It is concluded that the energy and protein nutritional requirements of Caninde ' goats supplemented on pasture in the semi-arid region vary according to body weight.
英文关键词	Body composition Caatinga Native goats Requirements
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001110188400001
WOS关键词	BODY-COMPOSITION ; NUTRITIONAL-REQUIREMENTS ; EXPENDITURE ; ANIMALS ; SHEEP ; PREDICTION ; RUMINANTS ; HEAT ; DIET
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398654
推荐引用方式 GB/T 7714	de Lima Junior, Valdi,de Medeiros, Ariosvaldo Nunes,Costa, Roberto Germano,et al. Energy and protein requirements for maintenance and weight gain of Caninde goats supplemented on pasture in the semi-arid region[J],2023,229.
APA	de Lima Junior, Valdi.,de Medeiros, Ariosvaldo Nunes.,Costa, Roberto Germano.,da Silva, Divan Soares.,Batista, Angela Maria Vieira.,...&Dias-Silva, Tairon Pannunzio.(2023).Energy and protein requirements for maintenance and weight gain of Caninde goats supplemented on pasture in the semi-arid region.SMALL RUMINANT RESEARCH,229.
MLA	de Lima Junior, Valdi,et al."Energy and protein requirements for maintenance and weight gain of Caninde goats supplemented on pasture in the semi-arid region".SMALL RUMINANT RESEARCH 229(2023).