00:00The Jir breed of cattle originates from the Gujarat region of western India.
00:06This breed is one of the main breeds of zebu cattle, bos indicus, and is characterized
00:11for its remarkable resistance to hot climates and its ability to adapt to conditions
00:16difficult environments.
00:18The jir is particularly recognized for its milk production and its hardiness, which
00:23which has made it a popular choice in many tropical and subtropical countries.
00:28Over time, the jir has been exported to Latin America, especially Brazil,
00:34where it has played a fundamental role in the genetic improvement of cattle herds
00:39dairy.
00:40In countries in this region, the jir breed has been crossed with European breeds such as the Holstein,
00:46giving rise to hybrids that combine the high milk production of European breeds
00:50with the adaptability and resistance of the zebu cattle.
00:53Jir dairy cattle stand out for several characteristics that make them ideal for farming.
00:59milk production in hot climates and harsh conditions.
01:03Its main characteristics are described below.
01:07Hardiness, the jir breed is highly resistant to adverse conditions, such as extreme heat,
01:13drought and diseases typical of the tropics, especially those transmitted by
01:18parasites. This makes it highly prized in warm regions where other breeds would not thrive.
01:26Adaptability, it adapts well to tropical and subtropical climates, withstanding high temperatures
01:31and humidity. In addition, its resistance to tropical diseases makes it an excellent choice.
01:38for areas where the climate is variable.
01:41Docile character, the jir is known for its calm and docile temperament, which makes it easier
01:46its management in milking and in intensive production systems.
01:50Physical appearance, it is distinguished by its prominent head with convex profile, long ears
01:56and pendants, and a well-developed dewlap.
02:00Its fur is usually of varied color, mainly in red, white and mottled tones, which gives it
02:06helps reflect the heat of the sun.
02:08Longevity and fertility, Jir cows tend to have a longer and good productive life
02:14reproductive capacity, which allows for constant performance over time.
02:19These characteristics have made the jir one of the main dairy breeds in
02:24tropical countries and also a frequent choice for crossbreeding with higher production breeds,
02:29like Holstein, in search of hybrids that combine production and resistance.
02:35Milk production of the Jir breed of cattle.
02:38Average production.
02:39Jir cows produce, on average, between 2,000 and 4,000 liters of milk in a lactation.
02:46of 305 days.
02:48However, there are records of highly genetic animals that can produce up to
02:535,000 liters in the same period.
02:56Daily production varies depending on genetic line, feeding, management and
03:01environment, but generally ranges between 8 and 12 liters per day.
03:06Milk quality.
03:07Milk from Jir cows is known for having a high total solids content,
03:13which is favorable for the production of dairy products such as cheese and yogurt.
03:18Fat levels are usually around 4.5 to 5.5 percent and protein content
03:25is approximately 3.5 to 4.0 percent, characteristics that increase the commercial value
03:32of milk.
03:33Adaptation and resistance.
03:35Jir cattle are extremely resistant to high temperatures and diseases.
03:40tropical diseases such as ticks and foot-and-mouth disease, which reduces veterinary and management costs
03:46compared to European breeds.
03:49This breed also has a greater ability to take advantage of lower quality forages, since
03:54that their digestive system is adapted to adverse feeding conditions.
03:58Reproductive advantages.
04:01In warm climate conditions, Jir cattle have a higher reproductive efficiency,
04:07with shorter calving intervals compared to other dairy breeds.
04:12This allows for a higher frequency of breastfeeding and therefore an increase in production
04:17accumulated milk throughout her life.
04:20Crossbreeding programs.
04:22A common practice is the crossing of the Jir breed with European breeds, especially
04:27with the Holstein breed, to form the girolando, girolando, which combines the high production of
04:33Holstein milk with the resistance and adaptability of the jir.
04:38These crosses produce cows with higher milk production and good adaptability.
04:42to the tropics.
04:44Jir cattle are very popular in dual-purpose systems, where the goal is to maximize both
04:49the production of both milk and meat.
04:52Meat production.
04:54Morphology.
04:55The jir has a robust structure, with good muscular development and resistance, which
05:00makes it suitable for meat production.
05:03Weight gain.
05:05Although their weight gain is not as high as in specifically meat breeds, the
05:10Jir has a moderate weight gain, which can be increased with good management practices.
05:15and food.
05:17Crossbreedings.
05:17In dual-purpose systems, the jir is often crossed with meat breeds, such as Brahmin,
05:23or with dual-purpose breeds, such as the Cimental or Charolais, to improve profit
05:28weight and increase meat production without losing strength.
05:32Adaptability to grazing.
05:35This cattle is very efficient in the use of low quality pastures and conditions of
05:40extensive grazing, which is an advantage in dual-purpose systems where it is not always
05:45quality forage is available.
05:48Lower management costs.
05:49Due to its resistance and adaptability, the jir requires less care and is ideal for
05:54extensive or semi-intensive production systems.
05:58Reproductive advantages.
06:01Short interval between births.
06:02The jir is known for its high fertility and reproductive capacity, which facilitates a
06:07shorter birth interval.
06:10This allows for more offspring and lactations throughout the cow's life.
06:14Greater longevity.
06:17This breed has a long productive life, generally longer than that of many breeds.
06:21milkmaids.
06:23This means that a Jir cow can have several births and produce milk for longer.
06:28years, increasing profitability in the dual-purpose system.
06:32In summary, jir cattle are ideal for dual-purpose systems in warm climates, due to their
06:38adaptability, resilience and profitability.
06:41Its high quality milk and moderate production, combined with a robust structure for the
06:47meat production, making it an ideal option to take advantage of both production lines
06:51in a single animal.
06:54In addition, it is very suitable for crossbreeding that improves efficiency in both aspects,
06:59providing stability and economic flexibility to ranchers.
07:02Thank you.
07:03Thank you.
07:04Thank you.
07:05Thank you.
07:06Thank you.
07:07Thank you.
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