干旱区生态环境知识资源中心(Arid): Diet selected by goats on xerophytic shrubland with different milk yield potential

Arid

DOI	10.1016/j.jaridenv.2020.104429
	Diet selected by goats on xerophytic shrubland with different milk yield potential
	Garcia-Monjaras, S.; Santos-Diaz, R. E.; Flores-Najera, M. J.; Cuevas-Reyes, V; Meza-Herrera, C. A.; Mellado, M.; Chay-Canul, A. J.; Rosales-Nieto, C. A.
通讯作者	Rosales-Nieto, CA (corresponding author), Univ Autonoma San Luis Potosi, Fac Agron & Vet, San Luis Potosi 78321, San Luis Potosi, Mexico.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	186
英文摘要	We hypothesized that diet choice of mixed-breed goats on xerophytic shrubland of northern Mexico depends on their milk yield potential. During winter and spring (dry season), milk yield was recorded and forage samples were collected weekly. Goats were separated into a medium (MP; n = 20) or low-milk yielding groups (LP; n = 20). Total milk yield for 105 d lactation was 45.2 +/- 12.5 and 20.7 +/- 5.2 L for MP and LP goats, respectively. Dam bodyweight was positively related to milk yield (P < 0.001). Microhistological analyses showed that goat diets were composed mainly of shrubs (33%) and perennial grasses (36%) during the dry season with no influence of milk-yield or season on diet selection. Plants with abundant secondary compounds such as Larrea tridentate and Prosopis laevigata constituted around 7% of the goat diets in winter. Goats showed strong selectivity for Bouteloua gracilis and Croton lechleri in both seasons. The energy content of forage selected by MP goats was higher (P < 0.01) than that of LP goats. CP content of forages selected by goats was higher (12.7%; P < 0.01) in spring than in winter (8.1%). We concluded that mixed-breed goats with higher milk yield capacity selected similar diets as goats with less milk production capacity during both seasons. These mixed-breed goats reared on xerophytic shrubland of northern Mexico have the potential for producing moderate levels of milk during winter and spring (dry season); however, concentrate supplementation is necessary to sustain milk production under condition of forage scarcity.
英文关键词	Female goats Microhistological analysis Diet composition Milk production Milk composition
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000611831300001
WOS关键词	BOTANICAL COMPOSITION ; RESUMPTION ; TANNINS ; WEIGHT ; DESERT ; SHEEP
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350676
作者单位	[Garcia-Monjaras, S.; Santos-Diaz, R. E.; Rosales-Nieto, C. A.] Univ Autonoma San Luis Potosi, Fac Agron & Vet, San Luis Potosi 78321, San Luis Potosi, Mexico; [Flores-Najera, M. J.] Inst Nacl Invest Forestales Agr & Pecuarias, Campo Expt La Laguna, Matamoros 27440, Coahuila, Mexico; [Cuevas-Reyes, V] Inst Nacl Invest Forestales Agr & Pecuarias, Campo Expt Valle Mexico, Ciudad De Mexico 56250, Mexico; [Meza-Herrera, C. A.] Univ Autonoma Chapingo, Unidad Reg Univ Zonas Aridas, Texcoco 35230, Mexico; [Mellado, M.] Univ Autonoma Agr Antonio Narro, Dept Nutr Anim, Saltillo 25315, Coahuila, Mexico; [Chay-Canul, A. J.] Univ Juarez Autonoma Tabasco, Div Acad Ciencias Agr, Carr Villahermosa Teapa,Km 25, Villahermosa 86280, Tabasco, Mexico
推荐引用方式 GB/T 7714	Garcia-Monjaras, S.,Santos-Diaz, R. E.,Flores-Najera, M. J.,et al. Diet selected by goats on xerophytic shrubland with different milk yield potential[J],2021,186.
APA	Garcia-Monjaras, S..,Santos-Diaz, R. E..,Flores-Najera, M. J..,Cuevas-Reyes, V.,Meza-Herrera, C. A..,...&Rosales-Nieto, C. A..(2021).Diet selected by goats on xerophytic shrubland with different milk yield potential.JOURNAL OF ARID ENVIRONMENTS,186.
MLA	Garcia-Monjaras, S.,et al."Diet selected by goats on xerophytic shrubland with different milk yield potential".JOURNAL OF ARID ENVIRONMENTS 186(2021).