Marketing of meat sheep with intensive finishing in southern state of Mexico     

Jaime Mondragón-Ancelmo  Juvencio Hernández-Martínez  Samuel Rebollar-Rebollar  Abdelfattah Zeidan Mohamed Salem  Rolando Rojo-Rubio  Ignacio Arturo Domínguez-Vara  Anastacio García-Martínez 《Tropical animal health and production》2014,46(8):1427-1433

The objective of the present study was to quantify the marketing margins of cold sheep carcass and barbacoa meat in the southern state of Mexico. Data were obtained from the production chain links (production, industrialization, and marketing) where the marketing margins were calculated along with the benefit/cost (B/C) ratio. In the absolute marketing margin of the final consumer price per kilogram of carcass meat, the producer obtained US$2.7/kg (47 %) of the utilities, while the intermediaries obtained US$3.1/kg (53 %). Considering the final cooked product in barbacoa (typical dish), the margin was US$6.3/kg (29 %) for the producer and US$15.2/kg (71 %) for the intermediaries. The B/C ratio was 1.0, 1.1, 2, and 1.3 for the producer, stocker, butcher, and barbacoa seller, respectively. It is concluded that the best marketing channel for the producer was the producer-stocker-processor (butcher and barbacoa seller). The highest marketing margin was for the intermediaries followed by the producer. The order of importance of the B/C kilogram ratio of meat was for the butcher first, then barbacoa seller, and lastly stocker and producer.  相似文献   

Urea treated maize straw for small-scale dairy systems in the highlands of Central Mexico     

Anastacio García-Martínez  Benito Albarrán-Portillo  Octavio Alonso Castelán-Ortega  Angélica Espinoza-Ortega  Carlos Manuel Arriaga-Jordán 《Tropical animal health and production》2009,41(7):1487-1494

Maize straw is the main roughage for dairy herds in campesino farms in central Mexico. The objective was to evaluate feeding milking cows on maize straw treated with 40 g/kg DM of urea (A) or untreated straw (B), and 3.0 kg/d of 18% CP concentrate. Twenty-four Holsteins in late lactation from 8 farmers were sorted in two groups: sequence A-B-A or B-A-B; periods were 28 days. Mean daily milk yield for the last two weeks per period, and live-weight and body-condition score every 14 days were used for analysis. Maize straw was ad libitum. Chemical analysis and in vitro digestibility were analysed by Student’s t test, animal variables by a switch-back design. ‘A’ had 44.3 g/kg DM more CP and 106.5 g/kg DM higher in vitro digestibility than ‘B’ (710 g/kg DM ± 0.75 ‘A’ vs. 603.5 g/kg DM ± 1.44 ‘B’). Despite higher digestibility and intake, there were no differences (P > 0.05) for milk yield, live-weight or body-condition score, although there were in straw intake (P < 0.05). Cows on ‘A’ ate 1.7 kg/cow/day more straw DM than on ‘B’. Lack of response did not offset higher feeding costs although margins were high. Lack of response is attributed to short length of periods and late lactation of cows.  相似文献   

Molasses supplementation for dual-purpose cows during the dry season in subtropical Mexico     

Isela Salvador-Loreto  Carlos Manuel Arriaga-Jordán  Julieta Gertrudis Estrada-Flores  Fernando Vicente-Mainar  Anastacio García-Martínez  Benito Albarrán-Portillo 《Tropical animal health and production》2016,48(3):643-648

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Chemical composition,in vitro gas production,methane production and fatty acid profile of canola silage (Brassica napus) with four levels of molasses     

Limón-Hernández  Daniel  Rayas-Amor  Adolfo Armando  García-Martínez  Anastacio  Estrada-Flores  Julieta Gertrudis  López  Mayra Núñez  Cruz Monterrosa  Rosy G.  Morales-Almaráz  Ernesto 《Tropical animal health and production》2019,51(6):1579-1584

The objective of this study was to investigate the effect of four levels of molasses on chemical composition, in vitro digestibility, methane production and fatty acid profile of canola silages. A canola (Brassica napus var. Monty) crop was established in a small-scale agricultural farm and harvested 148 days after sowing. Four levels of molasses were tested with respect to the fresh weight (1.5 kg); these were 1% (CS-1), 2% (CS-2), 3% (CS-3) and 4% (CS-4) molasses, and 0% molasses (CS-0) was included as a control. A total of 45 microsilages were prepared using PVC pipes (4 in. of diameter × 20 cm of length), and the forage was compressed using a manual press. The effects of control and treatments were tested using the general linear model Y?=?μ?+?T_i?+?E_ij. The linolenic acid (C18:3n3), palmitic acid (C16:0) and linoleic acid methyl ester (C18:2n6c) accounted for 30%, 21% and 10.5% of total fatty acids, respectively; the fermentation parameters and in vitro methane production were not affected (P?>?0.05) by treatments; in vitro digestibility decreased significantly (P?<?0.05) as the level of molasses increased. It was concluded that CS-4 improved the DM content by 9% and showed high content of linolenic acid methyl ester. The gross energy of canola silages could favour the oleic acid methyl ester.

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