Aim of study: To evaluate the effect failed transfer passive immunity (FPI; Brix% < 8, equivalent to serumimmunoglobulin G <10.1 g/L) and agammaglobulinemia (AG; ≤ 6.5, equal 0 g/L serum immunoglobulin G) assessed with a digital Brix refractometer on occurrence pre-weaning diarrhea, pneumonia mortality in Holstein female calves. Area Study: Hot-arid zone northern Mexico (25 °N). Material methods: Health events records were obtained from calves (n = 4,349) large commercial dairy herd....

Aim of the study: To determine effect diarrhea and pneumonia on preweaning weight gain subsequent reproductive performance Holstein heifers in a hot environment. Study site: Hot-arid zone northern Mexico (25 °N). Material methods: This study enrolled 7,809 calves from single large commercial dairy herd. Calves´ birth weaning weights were recorded, was registered. Main results: The daily suffering (573 ± 12 g/d), (557 comorbidity these diseases (520 13 g/d) lower (p<0.05) than healthy (594...

A compendium of the legumes subfamily Papilionoideae, tribes Amorpheae, Brongniarteae, and Dalbergieae in northeastern Mexico is presented for first time, including changes their botanical nomenclature within genera. Based on recently published studies, taxonomic limits several genera new ones segregated such as Marina Ctenodon are clarified included. mainly fieldwork over past 40 years, well reviewing specimens national international herbaria, we show total diversity Dalbergieae. The three...

A synoptic compendium of the legumes Mimosoideae clade in northeastern Mexico is presented for first time, including changes their botanical nomenclature and retypification genera. Furthermore, based on new information recently published, taxonomic limits several genera segregated from Acacia (Acaciella, Mariosousa, Senegalia Vachellia) Prosopis (Neltuma Strombocarpa) are clarified included. Based field work, collecting samples during last 30 years, a review materials database national...

Cuatrociénegas, part of the Chihuahuan Desert, is a region unique biological, geological, geographical, and evolutionary importance. Its current population mestizo; nevertheless, it has high national historical, cultural, touristic relevance in Mexico. It been cataloged as nationally significant for its flora fauna by Mexican law, well being designated High Protection site World Wildlife Fund UNESCO. Because diverse complex biological sociocultural characteristics, we considered important to...

As part of the Fabaceae project northeastern Mexico, today we present compendium legumes subfamilies Caesalpinioideae, Cercidoideae and Detarioideae from this region. in our previous work on Mimosoideae Clade, new nomenclatural changes retypification genera subfamily Caesalpinioideae are included. Also, based scientific information published, taxonomic genera, recently segregated genus Caesalpinia (Conzattia, Coulteria, Denisophytum, Erythrostemon, Guilandina, Hoffmannseggia, Pomaria) Based...

Se revisa la distribución de especies plantas endémicas tomando como base el concepto Megacoahuila, que amplía superficie del estado en más 100%. La región ofrece variación climática y fisiográfica da lugar a presencia al menos 13 tipos vegetación los matorral desértico es dominante. presenta un listado 350 taxa infraespecíficos. Esta cifra representa 11.2% total flora. Los con mayor incidencia elementos restringida son matorrales micrófilo rosetófilo localidad número Cuatro Ciénegas....

La sierra de Zapalinamé se localiza en el sureste Coahuila, la transición entre Desierto Chihuahuense y Sierra Madre Oriental, es una zona sujeta a conservación ecológica por decreto del gobierno estatal; matorral xerófilo vegetación dominante, sin embargo, sitios donde clima templado frío desarrolla bosque oyamel. Con finalidad conocer su composición ftorística, estructura, además aspectos sobre ecología, establecieron 10 circulares 1,000 m2 cuantificó diámetro 1.30 m altura media las...

The most prominent vegetation type in the state of Coahuila, northern Mexico, is Chihuahuan Desert Scrub. This plant formation encompasses little known Dasylirion cedrosanum (sotol) rosette scrub, a community that extends over more than one fourth Coahuila and whose distinctive species subjected to intense extraction from its native communities for variety purposes. Based on highly replicated sampling procedure included 131 plots located state’s central southern portions, we analyzed...

Objective: To evaluate the dry matter distribution of banderita grass [Bouteloua curtipendula (Michx.) Torr.] in different plant strata.
 Design/Methodology/Approach: A randomized block experimental design with five repetitions was used for experiment. Each repetition consisted three plants which were evaluated at days after sowing (DAS), strata: basal stratum (BS), middle (MS), and upper or apical (AS). The following variables evaluated: yield (DMY), morphological composition (MC),...

A synoptic compendium of the legumes Mimosoideae clade in northeastern Mexico is presented for first time, including changes their botanical nomenclature and retypification genera. Furthermore, based on new information recently published, taxonomic limits several genera segregated from Acacia (Acaciella, Mariosousa, Senegalia, Vachellia) Prosopis (Neltuma Strombocarpa) are clarified included. Based field work, collection samples over past 30 years, reviewing materials national international...

This study aimed to evaluate various elimination strategies on the richness and diversity of species in a grassland dominated by Amelichloa clandestina northeast Mexico. establishes after abandonment agricultural areas. In two grasslands 40 60 ha, four treatments were evaluated: Cutting grass cover, application herbicide, burning, control. Six repetitions per treatment applied 100 m2 plots. To each plot, vegetation cover plant was measured, corner 2 x m plots quadrants, where present...

As part of the Fabaceae project northeastern Mexico and based on field work, collection botanical samples over past 37 years, reviewing materials in national international herbaria, diversity legumes subfamilies Caesalpinioideae (excluding tribe Mimoseae), Cercidoideae, Detarioideae has been recorded. New nomenclatural changes tribes genera subfamily found new scientific bibliography are included. The Mimoseae) includes five tribes: Caesalpinieae, with eight (Caesalpinia, Coulteria,...

Increases or decreases in grazing cause significant disturbances natural and managed forests. Indeed, impacts can be on par with habitat destruction, exotic species invasion fire. Grazing produce changes the diversity of native as well functional plant groups at community ecosystem levels. Unfortunately, overgrazing is a common occurrence many communities, increasing erosion risks, land degradation invasion. We analyze quantify effects by goats cattle horses forest structure spatial...

Iturbide is located in the Northeast of Mexico, it has a rich native and exotic flora, however, there are no ethnobotanical records, therefore, requires attention documentation traditional practices uses its botanical resources. In 2021, twelve field trips were carried out, applying 110 semi-structured interviews. Plant samples collected, identified deposited an herbarium. We used Chi-square test to compare with respect others reported Mexico. To determine cultural importance, three indices...

Iturbide is in the northeast of Mexico and has a rich native exotic flora; however, there are no ethnobotanical records, therefore, it requires attention documentation traditional knowledge practices its botanical resources. In 2021, twelve field trips were carried out, applying 110 semi-structured interviews. Plant samples collected, identified deposited an herbarium. We used Chi-square test to compare anthropocentric categories concerning others reported Mexico. To determine cultural...

Con la finalidad de conocer estructura y composición florística los bosques encino Sierra Zapalinamé, se evaluó densidad área basal del arbolado adulto, cobertura arbustos registró identidad componentes herbáceos en 66 parcelas 500 m2. Los árboles juveniles midieron sitios 50 m2 regeneración cinco 1 atributos vegetación fueron utilizados para obtener el valor importancia ecológica las especies leñosas. La flora vascular es 259 taxa infraespecíficos 178 géneros 67 familias. Las asociaciones...

We analyzed the species richness of grass family (Poaceae) in state Coahuila, Mexico, evaluating data from herbarium specimens. The evaluation was made by dividing into a grid 20’ × squares (latitude longitude), objective to identify areas high diversity. herbaria revision documented 39 grasses, distributed eight subfamilies, 19 tribes, and 97 genera. genera with highest number are Muhlenbergia (32 species), Bouteloua (21), Eragrostis (18). Seven endemic Northeastern Mexico ( Bromus densus ,...

In the pine forests of Mexico, disturbances are primarily due to cattle, horses, goat, and sheep grazing, particularly in communal grazing lands. The most evident low tree recruitment, invasive shrubs establishment, species composition changes, invasion weeds dispersed mainly by livestock. Sierra de Zapalinamé is a mountain range natural protected area northeast Mexico. We conducted current study this forest stand Pinus cembroides excluded from last 25 years (1200 ha with vegetation...

La sierra de Zapalinamé es un área natural protegida del sureste Coahuila, en la transición entre el Desierto Chihuahuense y Sierra Madre Oriental. En sus cañones, donde clima templado subhúmedo semiseco, se desarrollan bosques encino. Con finalidad conocer distribución, riqueza diversidad especies estos bosques, establecieron 66 sitios circulares 500 m2, tomó información densidad, diámetro cobertura las plantas leñosas, frecuencia hierbas. Se utilizó densidad leñosas todos los gremios para...

The objective of this study was to investigate the influence environmental and soil factors on structure floristic woody composition oak forests. Oak forests Sierra de Zapalinamé in northeastern Mexico (25°N) are distributed canyons northwest slopes with higher humidity, surrounded by montane chaparral. We carried out a vegetation inventory across an altitudinal gradient. All trees diameter at breast height =>3 cm were identified measured. In addition, cover understory species measured each...